ENABLING TECHNOLOGIES FOR 4G NETWORKS

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ENABLING TECHNOLOGIES FOR 4G NETWORKS

• BY
• ADEL AL-SHAHRANI
• 986074
• June 3, 2003

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OUTLINE

• WHY 4G
• NETWORK LAYER TECHNOLOGIES
• Network Architectures
• MIPv6 HMIPv6
• IDMP
• PHYSICAL LAYER TECHNOLOGIES
• SDR
• OFDM
• M-Ary MC-CDMA
• CONCLUSION

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WHY 4G?

• 1G Analogy Communication
• 2G Digital Communication
• 3G Multimedia
• 4G More Services

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NETWORK ARCHTECTURES

• OVERLAY NETWORK
• COMMON ACCESS NETWORK
• MULTIMODE DEVICES

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OVERLAY NETWORK

• UAP
• Handoff network

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COMMON ACCESS NETWORK

• Wireless network
• Flexible

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MULTIMODE DEVICES

• AMPS/CDMA
• Physical Device

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MIPv6

• MN, HA and FA
• CoA FA or DHCPv6
• Optimizing the rout

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Why MIPv6? (Cont.)
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MIPv6 (Cont.)
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HMIPv6

• Reduce handoffs
• Mobility Anchor Point (MAP)
• Two CoAs

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HMIPv6 (Cont.)
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Intra-Domain Mobility Management Protocol

• Reducing handoffs and paging latency
• Gateway foreign agent (GFA)
• GCoA LCoA
• Delays Link layer establishment delay, IP subnet
  registration and Intradomain update delay
• MovementImminent message

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Intra-Domain Mobility Management Protocol (Cont.)
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Intra-Domain Mobility Management Protocol (Cont.)
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SOFTWARE DEFINE RADIO (SDR)

• Allocating different frequency BW in different
  countries
• 4G deals with different technologies standards
• Infrastructure hardware -downloading software
• Development in
• (A/D) and (D/A) converters
• (FPGA) and digital signal processing (DSP)
• general-purpose programmable devices

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SDR (Cont.)

• Packet-based switch
• Multiple boards in a cPCI
• Flexible and scalable

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Orthogonal Frequency Division Multiplexing

• Multi-Carrier Modulation (MCM)
• Supporting
• date rate 54Mbps
• real traffic 22Mbps
• Orthogonally
• Parallel subcarriers

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OFDM (Cont.)

• Components
• FFT processors,
• System I/O
• Serial-parallel converters
• Parallel-serial converters
• OFDM logic

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OFDM (Cont.)

• Transmitter
• Receiver

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OFDM (Cont.)

• Types
• Vector OFDM
• F-OFDM
• W-OFDM
• MIMO-OFDM
• Issues Frequency offset , Phase noise and Peak
  to average power ratio-PAR

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M-ary MC-CDMA

• Supporting data rate 20Mbps
• Combination of OFDM and CDMA
• Advantages
• High data rates
• High BW efficiency
• Reducing interference and frequency diversity

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M-ary MC-CDMA (Transmitter)
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M-ary MC-CDMA (Receiver)
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CONCLUSION

• Using IP MIP
• SDR is the drive technology to 4G
• High speed technologies (MCM) OFDM and MC-CDMA
• HW developments

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THANK YOU
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Background IDMP Paging

• Reduce Latency
• Paging Areas (PAs)
• Area Identifiers (PAIs)
• PageSolicitation packet

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IDMP Paging (Cont.)
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MIMO-OFDM

• Technologies
• MIMO
• OFDM
• Advantages
• reducing the fade margin
• double the data rate
• frequency diversity
• allows different data rates
• Performance Fading Margins, Cell Size and
  Measured Data Rates