350 Subcarriers PPTs View free & download

MCBC Contention using OFDM subcarriers PowerPoint PPT Presentation

MCBC Contention using OFDM subcarriers - Round 1 (feedback): referees select the 34 nominees as winners. Round 2 (contention): 34 contenders flip a coin (probability pt) ...

Round 1 (feedback): referees select the 34 nominees as winners. Round 2 (contention): 34 contenders flip a coin (probability pt) ...

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Simulation Data for Letter Ballot Comments on Quasi-guard Subcarriers and Reverse Link Waveform PowerPoint PPT Presentation

Simulation Data for Letter Ballot Comments on Quasi-guard Subcarriers and Reverse Link Waveform - Simulation results also show the implication on tradeoff between channel spacing ... on improvements for LB1 comment resolution results', C802.20-06/24, May 5, ...

Simulation results also show the implication on tradeoff between channel spacing ... on improvements for LB1 comment resolution results', C802.20-06/24, May 5, ...

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MultiCarrier Transmission over Mobile Radio Channels PowerPoint PPT Presentation

MultiCarrier Transmission over Mobile Radio Channels - ... users within the same cell, by assigning orthogonal Walsh ... BER for BPSK versus Eb/N0 (1) 8 subcarriers (2) 64 subcarriers (3) infinitely many subcarriers ...

... users within the same cell, by assigning orthogonal Walsh ... BER for BPSK versus Eb/N0 (1) 8 subcarriers (2) 64 subcarriers (3) infinitely many subcarriers ...

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OFDMA - Multiple access is achieved by assigning subsets of subcarriers to individual users ... Abbrev. Definition. Typical Applications. Unsolicited Grant Service. UGS ...

Multiple access is achieved by assigning subsets of subcarriers to individual users ... Abbrev. Definition. Typical Applications. Unsolicited Grant Service. UGS ...

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WINDFLEX - TC code rate. OFDM constellation size (same for all subcarriers) Weak Subcarrier Excision (WSCE) ... Free space losses have been subtracted ...

TC code rate. OFDM constellation size (same for all subcarriers) Weak Subcarrier Excision (WSCE) ... Free space losses have been subtracted ...

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MIMO-OFDM Wireless Communications with MATLAB PowerPoint PPT Presentation

MIMO-OFDM Wireless Communications with MATLAB - Wireless Communications with MATLAB Chapter 4. Introduction to OFDM Yong Soo Cho | Jaekwon Kim Won Young Yang | Chung G. Kang

Wireless Communications with MATLAB Chapter 4. Introduction to OFDM Yong Soo Cho | Jaekwon Kim Won Young Yang | Chung G. Kang

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Signal Processing for OFDM Communication Systems PowerPoint PPT Presentation

Signal Processing for OFDM Communication Systems - Title: LDPC Overview and Implementation Author: Eric Jacobsen Last modified by: eajacobs Created Date: 12/6/2002 12:58:45 AM Document presentation format

Title: LDPC Overview and Implementation Author: Eric Jacobsen Last modified by: eajacobs Created Date: 12/6/2002 12:58:45 AM Document presentation format

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Introduction to OFDM and the IEEE 802.11a Standard PowerPoint PPT Presentation

Introduction to OFDM and the IEEE 802.11a Standard - Title: No Slide Title Last modified by: narayan Created Date: 1/21/2003 5:41:38 AM Document presentation format: On-screen Show Other titles: Times New Roman Tahoma ...

Title: No Slide Title Last modified by: narayan Created Date: 1/21/2003 5:41:38 AM Document presentation format: On-screen Show Other titles: Times New Roman Tahoma ...

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presented by: Mark Lombardi Agilent USB/WiMedia Solution Manager PowerPoint PPT Presentation

presented by: Mark Lombardi Agilent USB/WiMedia Solution Manager - Contributor Members WiMedia Members USB-IF WiMedia UWB PHY Simulation and Test presented by: Mark Lombardi Agilent USB/WiMedia Solution Manager Outline UWB Commercial ...

Contributor Members WiMedia Members USB-IF WiMedia UWB PHY Simulation and Test presented by: Mark Lombardi Agilent USB/WiMedia Solution Manager Outline UWB Commercial ...

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Usage of OFDM in a wideband fading channel PowerPoint PPT Presentation

Usage of OFDM in a wideband fading channel - Usage of OFDM in a wideband fading channel OFDM signal structure Subcarrier modulation and coding Signals in frequency and time domain Inter-carrier interference

Usage of OFDM in a wideband fading channel OFDM signal structure Subcarrier modulation and coding Signals in frequency and time domain Inter-carrier interference

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WiMAX OFDM PHY Overview PowerPoint PPT Presentation

WiMAX OFDM PHY Overview - Title: OFDM System: The Application in WiMAX Author: Jacky Last modified by: Jacky Created Date: 10/17/2006 8:23:09 AM Document presentation format

Title: OFDM System: The Application in WiMAX Author: Jacky Last modified by: Jacky Created Date: 10/17/2006 8:23:09 AM Document presentation format

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MIMO-OFDM - MIMO-OFDM MIMO High diversity gain (space-time coding) High multiplexing gain (BLAST) OFDM Bandwidth efficient Robust to multipath fading thanks to cyclic prefix

MIMO-OFDM MIMO High diversity gain (space-time coding) High multiplexing gain (BLAST) OFDM Bandwidth efficient Robust to multipath fading thanks to cyclic prefix

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Signal Processing for OFDM Communication Systems - Signal Processing for OFDM Communication Systems

Signal Processing for OFDM Communication Systems

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Multi-Band OFDM Interference on In-Band QPSK Receivers Revisited PowerPoint PPT Presentation

Multi-Band OFDM Interference on In-Band QPSK Receivers Revisited - The resulting power spectral density is made equal to a system over any arbitrary band. ... However, results are optimistic as they account for 'ideal' filtering. ...

The resulting power spectral density is made equal to a system over any arbitrary band. ... However, results are optimistic as they account for 'ideal' filtering. ...

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PowerPoint-Pr PowerPoint PPT Presentation

PowerPoint-Pr - Effect of Carrier Frequency Offset on Channel Capacity in Multi User OFDM-FDMA Systems Martin Stemick and Hermann Rohling Hamburg University of Technology

Effect of Carrier Frequency Offset on Channel Capacity in Multi User OFDM-FDMA Systems Martin Stemick and Hermann Rohling Hamburg University of Technology

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Sin t - Summary and Conclusions Outline Nowadays the combination of Multiple-Input Multiple-Output (MIMO) systems and Orthogonal Frequency Division Multiplexing ...

Summary and Conclusions Outline Nowadays the combination of Multiple-Input Multiple-Output (MIMO) systems and Orthogonal Frequency Division Multiplexing ...

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Resource Allocation for Mobile Multiuser OFDM Systems PowerPoint PPT Presentation

Resource Allocation for Mobile Multiuser OFDM Systems - Digital Video Broadcasting Terrestrial and Handheld ... Key collaborators: Prof. Jeff Andrews and Prof. Robert Heath. Key graduate students: ...

Digital Video Broadcasting Terrestrial and Handheld ... Key collaborators: Prof. Jeff Andrews and Prof. Robert Heath. Key graduate students: ...

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Concepts of Multimedia Processing and Transmission PowerPoint PPT Presentation

Concepts of Multimedia Processing and Transmission - Title: PowerPoint Presentation Last modified by: Dennis Mccaughey Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show Other titles

Title: PowerPoint Presentation Last modified by: Dennis Mccaughey Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show Other titles

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OFDMA with Optimized Transmit and Receive Waveforms for Better Interference Immune Communications in Next Generation Radio Mobile Communication Systems - ITU Workshop on

ITU Workshop on

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Multi-Band OFDM Interference on In-Band QPSK Receivers Revisited - Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) ... 8000 W. Sunrise Blvd. Plantation, Florida. September 13, 2004. September 2004 ...

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) ... 8000 W. Sunrise Blvd. Plantation, Florida. September 13, 2004. September 2004 ...

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LowComplexity Channel Estimation for Wireless OFDM Systems PowerPoint PPT Presentation

LowComplexity Channel Estimation for Wireless OFDM Systems - OFDM has been found efficient in reducing severe effects of the frequency ... Dependence of SNR gain at equaliser's output on PDR. CMMSE estimator used ...

OFDM has been found efficient in reducing severe effects of the frequency ... Dependence of SNR gain at equaliser's output on PDR. CMMSE estimator used ...

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Resource Allocation for Mobile Multiuser Orthogonal Frequency Division Multiplexing Systems PowerPoint PPT Presentation

Resource Allocation for Mobile Multiuser Orthogonal Frequency Division Multiplexing Systems - Derived efficient algorithms to achieve similar performance with lower complexity ... Algorithms for resource allocation in Multiuser OFDM ...

Derived efficient algorithms to achieve similar performance with lower complexity ... Algorithms for resource allocation in Multiuser OFDM ...

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An Adaptive PatternedSubcarrier Allocation Algorithm for LowComplexity Multiuser OFDM System PowerPoint PPT Presentation

An Adaptive PatternedSubcarrier Allocation Algorithm for LowComplexity Multiuser OFDM System - Dept. of Electrical and Computer Engineering. The University of Texas at Austin. VTC 2005. Dallas, TX. Sep. 25-28, 2005. 2. Introduction. Multiuser OFDM ...

Dept. of Electrical and Computer Engineering. The University of Texas at Austin. VTC 2005. Dallas, TX. Sep. 25-28, 2005. 2. Introduction. Multiuser OFDM ...

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Optimal Combining of STBC and Spatial Multiplexing for MIMO-OFDM PowerPoint PPT Presentation

Optimal Combining of STBC and Spatial Multiplexing for MIMO-OFDM - Optimal Combining of STBC and Spatial Multiplexing for MIMO-OFDM Taehyun Jeon, Heejung Yu, and Sok-kyu Lee Wireless LAN Modem Research Team, ETRI

Optimal Combining of STBC and Spatial Multiplexing for MIMO-OFDM Taehyun Jeon, Heejung Yu, and Sok-kyu Lee Wireless LAN Modem Research Team, ETRI

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General Overview IEEE 802.11 WLAN Standard - General Overview IEEE 802.11 WLAN Standard

General Overview IEEE 802.11 WLAN Standard

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Channel%20Estimation%20for%20Wired%20MIMO%20Communication%20Systems PowerPoint PPT Presentation

Channel%20Estimation%20for%20Wired%20MIMO%20Communication%20Systems - Which channel estimation strategy for wired communication systems? ... [Chen & Mitra, 2000] Time. Optimal Sequence* Complexity. Minimum. MSE. Method. Domain ...

Which channel estimation strategy for wired communication systems? ... [Chen & Mitra, 2000] Time. Optimal Sequence* Complexity. Minimum. MSE. Method. Domain ...

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Long-Range Channel Prediction for Adaptive OFDM Systems PowerPoint PPT Presentation

Long-Range Channel Prediction for Adaptive OFDM Systems - Used an FIR Weiner prediction filter. Designed for flat-fading channels ... Future work: Adaptive prediction with Weiner smoothing ...

Used an FIR Weiner prediction filter. Designed for flat-fading channels ... Future work: Adaptive prediction with Weiner smoothing ...

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MC-CDMA systems for wireless networks PowerPoint PPT Presentation

MC-CDMA systems for wireless networks - Introduction Basic multiple access techniques Evolution of MC-CDMA Technologies in MC-CDMA Applications of MC-CDMA Advantages and problems of MC-CDMA Key challenges ...

Introduction Basic multiple access techniques Evolution of MC-CDMA Technologies in MC-CDMA Applications of MC-CDMA Advantages and problems of MC-CDMA Key challenges ...

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Evaluation of performance improvement capabilities of PAPR-reducing methods PowerPoint PPT Presentation

Evaluation of performance improvement capabilities of PAPR-reducing methods - Title: Peak power reduction in multicarrier systems by Successive Constrained Clipping Author: Marc Last modified by: carme rosa Created Date: 11/3/2005 7:30:16 AM

Title: Peak power reduction in multicarrier systems by Successive Constrained Clipping Author: Marc Last modified by: carme rosa Created Date: 11/3/2005 7:30:16 AM

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UT Austin IEEE 802.16a Simulation in LabVIEW PowerPoint PPT Presentation

UT Austin IEEE 802.16a Simulation in LabVIEW - Papers, simulation files, and real-time DSP prototype are available for download ... Wireless Networking and Communications Group, UT Austin ...

Papers, simulation files, and real-time DSP prototype are available for download ... Wireless Networking and Communications Group, UT Austin ...

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A Concise Introduction to Practical LTE Systems PowerPoint PPT Presentation

A Concise Introduction to Practical LTE Systems - eNodeB. To establish a connection to an LTE network, a UE must first determine the following from the eNB base station: Complete . time and frequency synchronization

eNodeB. To establish a connection to an LTE network, a UE must first determine the following from the eNB base station: Complete . time and frequency synchronization

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WiMAX and LTE Differences and Similarities Dr. Essam Sourour PowerPoint PPT Presentation

WiMAX and LTE Differences and Similarities Dr. Essam Sourour - WiMAX and LTE Differences and Similarities Dr. Essam Sourour Alexandria University sourour@ieee.org * Modulation methods * MIMO Signal transmitted from multiple ...

WiMAX and LTE Differences and Similarities Dr. Essam Sourour Alexandria University sourour@ieee.org * Modulation methods * MIMO Signal transmitted from multiple ...

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Performance Bounds in OFDM Channel Prediction PowerPoint PPT Presentation

Performance Bounds in OFDM Channel Prediction - Title: Slide 1 Author: Sande Storey Last modified by: Ian C. Wong Created Date: 10/7/2002 1:18:47 PM Document presentation format: On-screen Show Company

Title: Slide 1 Author: Sande Storey Last modified by: Ian C. Wong Created Date: 10/7/2002 1:18:47 PM Document presentation format: On-screen Show Company

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HOMO%20CONNECTUS%20The%20impact%20of%20technology%20on%20people PowerPoint PPT Presentation

HOMO%20CONNECTUS%20The%20impact%20of%20technology%20on%20people - Title: TITLE OF PRESENTATION Author: Lee Rainie Last modified by: lrainie Created Date: 9/19/2005 4:01:35 PM Document presentation format: On-screen Show

Title: TITLE OF PRESENTATION Author: Lee Rainie Last modified by: lrainie Created Date: 9/19/2005 4:01:35 PM Document presentation format: On-screen Show

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Adaptive Resource Allocation in Multiuser OFDM Systems PowerPoint PPT Presentation

Adaptive Resource Allocation in Multiuser OFDM Systems - Key Paper #1 [Wong, Cheng, Letaief and Murch, 1999] Optimal: Minimize total ... For Paper 1, I hope to get in touch with the authors for the simulation code ...

Key Paper #1 [Wong, Cheng, Letaief and Murch, 1999] Optimal: Minimize total ... For Paper 1, I hope to get in touch with the authors for the simulation code ...

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Multiuser OFDM with Adaptive Subcarrier, Bit and Power Allocation PowerPoint PPT Presentation

Multiuser OFDM with Adaptive Subcarrier, Bit and Power Allocation - H decrease = will increase the pr to become 1 to transmit data ... Digital Communication, Prokis, 4th edition. Wireless Communications, Rappaport,2nd edition ...

H decrease = will increase the pr to become 1 to transmit data ... Digital Communication, Prokis, 4th edition. Wireless Communications, Rappaport,2nd edition ...

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The Peak-to-Average Power Ratio Problem PowerPoint PPT Presentation

The Peak-to-Average Power Ratio Problem - ... reference function reduced the peak power of the least one signal sample. ... Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC '97) ...

... reference function reduced the peak power of the least one signal sample. ... Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC '97) ...

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Joint Cochannel Interference Cancellation and Channel Shortening with Spacetime Processing PowerPoint PPT Presentation

Joint Cochannel Interference Cancellation and Channel Shortening with Spacetime Processing - Intercarrier Interference Cancellation. For OFDM Systems. Group : OFDM I. Mihir Anandpara ... Robust to frequency-selective fading. Intercarrier Interference (ICI) ...

Intercarrier Interference Cancellation. For OFDM Systems. Group : OFDM I. Mihir Anandpara ... Robust to frequency-selective fading. Intercarrier Interference (ICI) ...

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Ibrahim DEMIRDOGEN PowerPoint PPT Presentation

Ibrahim DEMIRDOGEN - IFFT and FFT functions of MATLAB are implementation of these transforms in order ... OFDM has an immunity to narrow-band interference(turn-off) ...

IFFT and FFT functions of MATLAB are implementation of these transforms in order ... OFDM has an immunity to narrow-band interference(turn-off) ...

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Aim : Develop a flexible new scheduling methodology which improves fairness by adding knowledge of users PowerPoint PPT Presentation

Aim : Develop a flexible new scheduling methodology which improves fairness by adding knowledge of users - Introduction New applications, such as Layar and ViewNet allow augmented reality models to represent the physical environment in real-time.

Introduction New applications, such as Layar and ViewNet allow augmented reality models to represent the physical environment in real-time.

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Capacity Analysis on Downlink MIMO OFDMA Systems PowerPoint PPT Presentation

Capacity Analysis on Downlink MIMO OFDMA Systems - So for each subcarrier, the optimal solution is to transmit with ... and Product criterion yield sub-optimal solutions, but with a ... sub-optimal!! Wrapping ...

So for each subcarrier, the optimal solution is to transmit with ... and Product criterion yield sub-optimal solutions, but with a ... sub-optimal!! Wrapping ...

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High Throughput (HT) and 802.11n Module-10B PowerPoint PPT Presentation

High Throughput (HT) and 802.11n Module-10B - MIMO uses this multipath propagation to increase the ... 802.11n optional feature Multiple transmitter antennas focus the signal to a receiver Used by radar; ...

MIMO uses this multipath propagation to increase the ... 802.11n optional feature Multiple transmitter antennas focus the signal to a receiver Used by radar; ...

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Prof. Dr.-Ing. Jochen Schiller, http://www.jochenschiller.de/MC SS026.1 PowerPoint PPT Presentation

Prof. Dr.-Ing. Jochen Schiller, http://www.jochenschiller.de/MC SS026.1 - Mobile Communications Chapter 6: Broadcast Systems Unidirectional distribution systems DAB architecture DVB Container High-speed Internet Unidirectional distribution ...

Mobile Communications Chapter 6: Broadcast Systems Unidirectional distribution systems DAB architecture DVB Container High-speed Internet Unidirectional distribution ...

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Multihop MAC Protocol for MC-CDMA based WLANs confidential PowerPoint PPT Presentation

Multihop MAC Protocol for MC-CDMA based WLANs confidential - ComNets FFV Multihop MAC Protocol for MC-CDMA based WLANs confidential Georgios Orfanos RWTH Aachen University, Chair of Communication Networks 31.03.2006

ComNets FFV Multihop MAC Protocol for MC-CDMA based WLANs confidential Georgios Orfanos RWTH Aachen University, Chair of Communication Networks 31.03.2006

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Coding Schemes for OFDM Systems with Multiple Transmit Antennas under Indoor Wireless Environment PowerPoint PPT Presentation

Coding Schemes for OFDM Systems with Multiple Transmit Antennas under Indoor Wireless Environment - Coding Schemes for OFDM Systems. with Multiple Transmit Antennas under ... MTCM(multiple trellis coded modulation) mapping. FAS: amplitude information only ...

Coding Schemes for OFDM Systems. with Multiple Transmit Antennas under ... MTCM(multiple trellis coded modulation) mapping. FAS: amplitude information only ...

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Scheduling in WiMAX: Baseline Multiclass Simulations PowerPoint PPT Presentation

Scheduling in WiMAX: Baseline Multiclass Simulations - Baseline Multi-class Simulations. Chakchai So-In, Raj Jain, and Abdel-Karim Al Tamimi ... Per UL Frame = 35 12/3 = 140 free slots ...

Baseline Multi-class Simulations. Chakchai So-In, Raj Jain, and Abdel-Karim Al Tamimi ... Per UL Frame = 35 12/3 = 140 free slots ...

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EE 360 Paper Presentation Stephan Hengstler PowerPoint PPT Presentation

EE 360 Paper Presentation Stephan Hengstler - EE 360 Paper Presentation -- Multicarrier DS-CDMA: A Multiple Access Scheme for ... Conventional MC DS-CDMA: only F-domain repetition. ...

EE 360 Paper Presentation -- Multicarrier DS-CDMA: A Multiple Access Scheme for ... Conventional MC DS-CDMA: only F-domain repetition. ...

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EE359 - ... substreams can result in high peak signal values Impacts amplifier efficiency Solutions include clipping and coding Intercarrier ... Compensation techniques ...

... substreams can result in high peak signal values Impacts amplifier efficiency Solutions include clipping and coding Intercarrier ... Compensation techniques ...

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DSSS, ISI Equalization and OFDM PowerPoint PPT Presentation

DSSS, ISI Equalization and OFDM - none

none

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A New Technique for Sidelobe Suppression PowerPoint PPT Presentation

A New Technique for Sidelobe Suppression - Title: Kein Folientitel Author: Martin Hammer Last modified by: brande_s Created Date: 6/17/1995 11:31:02 PM Document presentation format: A4-Papier (210x297 mm)

Title: Kein Folientitel Author: Martin Hammer Last modified by: brande_s Created Date: 6/17/1995 11:31:02 PM Document presentation format: A4-Papier (210x297 mm)

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The Peak-to-Average Power Ratio Problem - ... OFDM Signal Amplitude Statistics[4,13] The Distribution of The Peak-to-Average Power Ratio ... Rayleigh distribution with a standard deviation of .

... OFDM Signal Amplitude Statistics[4,13] The Distribution of The Peak-to-Average Power Ratio ... Rayleigh distribution with a standard deviation of .

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EE359 - Title: Wireless Communications Research Overview Author: Andrea Goldsmith Last modified by: Andrea Goldsmith Created Date: 1/27/1999 8:08:30 PM Document presentation ...

Title: Wireless Communications Research Overview Author: Andrea Goldsmith Last modified by: Andrea Goldsmith Created Date: 1/27/1999 8:08:30 PM Document presentation ...

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CHANNEL ESTIMATION AND PowerPoint PPT Presentation

CHANNEL ESTIMATION AND - Wireless communications group, AU-KBC Research centre. 1. CHANNEL ESTIMATION AND ... to all transmit receive antenna pair and on all subcarrier positions. ...

Wireless communications group, AU-KBC Research centre. 1. CHANNEL ESTIMATION AND ... to all transmit receive antenna pair and on all subcarrier positions. ...

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Wireless Underwater Communications Network PowerPoint PPT Presentation

Wireless Underwater Communications Network - ... this is used by Transceiver_RNS to ... autoautocorr auto correlation ... Price. Product. Conclusion. Background. Project Description. Technical ...

... this is used by Transceiver_RNS to ... autoautocorr auto correlation ... Price. Product. Conclusion. Background. Project Description. Technical ...

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Background of OFDM and WLANs PowerPoint PPT Presentation

Background of OFDM and WLANs - Stochastic Processes and Random Variables. Discrete-Time Signal Processing ... Stochastic and random process. Discrete-time signals. Discrete Fourier Transform(DFT) ...

Stochastic Processes and Random Variables. Discrete-Time Signal Processing ... Stochastic and random process. Discrete-time signals. Discrete Fourier Transform(DFT) ...

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Orthogonal frequency-division multiplexing PowerPoint PPT Presentation

Orthogonal frequency-division multiplexing - Orthogonal frequency-division multiplexing (OFDM) Orthogonal Frequency-Division Multiplexing It is essentially identical to Coded OFDM (COFDM) is a ...

Orthogonal frequency-division multiplexing (OFDM) Orthogonal Frequency-Division Multiplexing It is essentially identical to Coded OFDM (COFDM) is a ...

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Subcarriers PowerPoint PPT Presentations