Fundamentals of Mobile Computing CE003752

1
Fundamentals of Mobile ComputingCE00375-2

• Introduction to the Module
• jjc1_at_staffs.ac.uk
• Ext 3292, Room C203, Beacon Building

2
Mobile Computing

• Content
• What is Mobile Computing ?
• Module Staff
• Teaching Schedule
• Lectures
• Tutorials
• Assessment
• Assignment
• Examination

3
Mobile Computing

• Biggest problem with Mobile communications like
  the Internet is too many acronyms

WSP/B PDC POS CCIR BW UPT BSS MCC FHSS HIPERLAN
IFS FIB SNDCP S-SAP WWW MSISD N LAI PDA ATIM CW
DVB-T ICMP PSN TTL HEC GIF LAPD CSCW ISO ITU LED
CCH CDMA PA ITU-R PDN IEEE IrDA AIDCS CAC HTML CC
NDC CCA SNACK IMF JPEG HDTP DPCH HDB HO GWL CC
XOR TD-CDMA JDC ISI RTT CTS BCA GTP SIM MMF CEPT
SCPAS-TP SFD UBR DPCCH SDM PTP-CLNS RL URI PHS
TLLI MOT ARP CU UIM PPP AIB MNC WRC IMT-MC WSP
WAP ATM-CL LBR PMA TCH/F M-PNNI HCSAP EMAS EIRP
CATV DNS VD FW CSMA DCE DSL FSK PLL AESA CSMA/CD
VC DH HDLC TI RAS MN SDP DVTR CORBA GEO EDTV
HMQoS TCH/FS HEO PAD HO-HMPDU SAP SDMA WML EHF
HIB FEC FIC TC-HMPDU VDB AID ACT FR PRACH AFS
CIF LI PACS RIP Loc AGCH ASA IWF BLIR TR-SAP UDP
SCF IMT-FT Cnf ISDN HTTP BPSK TFO ESS RTT TMN
MSRN SN PDO GMSC SIG CN HDTV AUS TUSSD CT SMS
DFWMAC DHCP BSC KID ROM ETSI ISM QPSK UTRA GRE TM
Req DVB-S FPLMTS CCCH ISL MUL DC COFDMOSI AM DVB
RTR SEQN COMS RSS PS PM TOS PC DAB PCS LS RSA RRM
CN TE IS XML LF SS7 M-NNI HI T-SAP COA RFID VCC
PTP DTE CS PTM WMLScript MTSA BLIRCS RR IMSI DAMA
RAND MIB GMM PCH RA NSS LIR SH SDT BSSAP SAAL
MATM WTLS TIM FT JCT PDTCH GFSK D-AMPS CDM PCM
CSD SW UMTS IV PSK ZIGBEE STA RIB EMAS-E MSDU TA
RFC CLMS IR NMT RLP ACID NFC TINA DQPSK TFI GPRS
PACS-UB VHF PT ABR NSA WCAC NTSC EY- PMA TMSI TDT
WDP CPU HMPDU SDU PLW DVB-C HAD CSMA/CA ACL MOC
MACA Disassoc TDM LAN DPDCH PLMN DLC QAM EIR AuC
HID RM DA PLCP CM SNAP LOS CAC VNDC UHF WCMP
L2CAP ARIB MSK ECDH TETRA PHY DSDV HA TCH/H ASCII
SRES WTA GSN CRC W3C PAL BRAN PSTN MEO MCM CKSN
CVSD I-TCP SUMR HSCSD LC RT POTS 3G HDACS TTC ASK
FDMA T-TCP VBR-rt LRU BER DIFS BSS PPG HDML EDGE
PRMA MSC NA-TDMA BFSK SDTV TCP GMSK MS VPN NAT
AMA SCO IMT-DS HF HCPDU USIM TCH/HS DS GPS CGI
PLI WIM SDCCH NMAS MCI IMT-TCCPM OFDM TIB ANSI
BCCH ASP NFS ITU-T SFN TFTS WMT FRAD MHEG ATM NIB
RLC WAN SGSN DECT PMD WTAI FCCH FM CAMEL FA COS
QoS UE PI TDD SCDMA LMP ARQN DCS VLR SATM VBR-nrt
HM ACK SwMI FACCH DCCH LAPDm AK-HCPDU DT-HCPDU
WLAN SHF VAD SIFS WLL RA MSC PSF W-CTRL GP FDD
UWC BSSGP BCH MT ID SMRIB UTRAN NNI PIFS GGSN
HCSDU IMT OMC AAL WTP DCF SCH FCA PDU IN IMT-SC
SA PSPDN GERAN GSM EDGE RAN M-UNI DSR TCH MAC RNS
BMP OSS W-CDMA SCPS AMES IP WATM SC Auth SEC-SAP
MF MS CBR NRL DSMA DBPSK 3GPP HC TDMA ML MTC NAV
AP M-TCP MBS PTP- ONS SC UD TSF PDF GSM ADSL UNI
LEO MSAP PIN FDM PCF SSL BTSM ISMA VLF OTA ADA
SACCH DSSS RACH PUK PPM SAMA MM LAPC IOT PAD RTS
Res ICO DTIM HBR CD TLS VBR DVD MSIN HCQoS LA
DDIB SS PNNI CIDR DTMF MSC EIT IMEI Codec UP ARQ
UN ILR WAE IETF CDV Assoc HP DCA MH CDPD GAP LLC
BTS LM B-ISDN HLR M-QoS TPC TV WPAN SI RAL GR
WP-CDMA AMPS NIT BLI MPEG VHE PCS CCF NET DAB
HSDPA
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Mobile Computing

• What is Mobile Computing
• Network computing on the move
• No need for wires to connect the computer
• A number of hardware technologies have become
  available allowing this
• Battery life has improved
• Screen Technology allows smaller, high resolution
  low power
• Radio modulation techniques are now more battery
  efficient
• Processors and memory are cheaper and draw less
  power
• Improved input methods- Virtual keyboard

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Mobile Computing

• As the hardware though has developed
• So have the software and uses
• Non laptop devices have user updatable operating
  systems installed
• These are specifically written for the hardware
  and its needs
• Windows CE and the variations
• Symbian
• Apple I-Phone OS Cut down OSx
• Standard software installed allowing improving
  productivity
• Software specifically written for the devices
  giving profitability
• Mobile TV video clips

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Mobile Computing

• When is Mobile computing useful
• Depending on the scenario different technology is
  required.
• Wireless is not always the best solution even
  today wired communications will be better in a
  lot of scenarios
• Consider a business person with a laptop trying
  to use email to stop in touch

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Mobile Computing

• Benefits of Commercial Mobile Computing can be
• Increase in profitability
• Reduced costs in terms of communications, and
  increased work due to the fact that you can
  respond quickly
• Improvement in Performance
• Instant access can allow you to adapt even though
  you are away from the office
• Simple example would be a parcel company while
  out getting information to pick up a parcel and a
  route to the location
• Cost Savings
• Cheap easily available communications, messaging,
  email
• A connected workforce
• Allowing instant access to data files from work
  for example for the worker who is on the road
• Improved competitiveness
• The improvements given can then allow to either
  stay ahead of the competition, or increasingly
  today, just to match the competition

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Mobile Computing

• Definitions
• Satellite
• Very limited throughput
• Available on a global basis
• Extremely expensive per Mb
• Wireless
• Data communications over a wireless interface
• No/limited roaming support
• Common example is IEEE 802.11b (Wi-Fi)
• Throughput from 1Mb to 200Mb (in theory)
• Susceptible to interference
• Medium cost, free at home, payment required when
  away from home
• Mobile
• Data communications with large area roaming
• Can have a high error rate in transmissions when
  moving
• Examples would be GSM, GPRS, UMTS, HSDPA
• Throughput from 9.6 Kbps to 2 Mbps, 7.2Mbps (in
  theory)
• Expensive per Mb, a typical 59p per Mb
• Fixed

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Mobile Computing

• What is a wireless/mobile device

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Mobile Computing

• Mobile Computing
• The number of devices is growing
• Mobile phones
• Laptops
• Small Cheap Computers (SCC)/Mini laptops
• PDAs
• Communicators ! (not the Star Trek kind)
• Headphones
• Computer peripherals
• Cars
• Portable Games consoles
• Electric/GAS Meters
• Number of devices is increasing all the time

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Mobile Computing

• Mobile Computing
• Locations where people can gain access is also on
  the increase popular Wi-Fi hot spots are
• Virgin Trains
• Railway Stations
• McDonalds
• Public Libraries
• TheCloud
• Star Bucks Coffee Shops
• Hilton Hotels
• This list will keep growing
• Staffordshire University ?
• Network access anywhere using mobile phone
  technology
• Wide scale use
• 2G GSM
• 2.5G GPRS, EDGE
• 3G UMTS
• 3.5G HSDPA

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Mobile Computing

• One Solution for all ????
• No one solution is suitable for all situations
• Devices need to change
• Air interface technology
• A wireless technology is designed for a task
• Design Considerations
• The design of these devices is different from a
  desktop
• Reduced battery power
• Reduced processing power
• Slower network communications (mostly)
• Reduced screen size
• Reduced input capabilities
• Increased risk of losing the device and data !
• Reduced control over the usage

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Mobile Computing

• Who is Driving this technology
• Military usage
• What they are using will become available to us
  at a later stage
• They are using wireless communications
• Real-time feedback for the battlefield
• Movement of intelligence
• Satellite photographs provided to the commanders
  in the field
• Intelligent Autonomous Devices
• LANDriod (http//www.darpa.mil/ipto/solicitations/
  open/07-46_PIP.pdf)
• Allows communications within a battlefield
  situation, where it would normally be hard
• The intention is for these to move until the
  generate a communications MESH using ADHOC
  technology
• Real-time status of personnel and the requesting
  of medical evacuation

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Mobile Computing

• Who is Driving this technology
• What we are now looking at for 3G technology
• The military have been using for 30 years
• The communications were secure if the sequence
  was not known
• Difficult to jam the entire signal
• Is not effected by limited signal degradation
• New uses of the technologies are being developed
• Large numbers of Supermarkets are using Radio
  Frequency Identification (RFID), to improve stock
  taking
• Airports are trialling the same technology for
  airport baggage
• Ambulance services are developing live feedback
  of data to hospitals
• Police vehicles that have a live feed to the
  national computer
• As of the Quarter 2 2008
• There are currently 3.6 Billion cellular users
• (http//www.gsmworld.com/news/statistics/pdf/gsma_
  stats_q2_08.pdf)
• This is a very large possible market place

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Mobile Computing

• The big growth areas
• For Mobile communications are
• China
• India
• Pakistan
• Africa
• http//www.alpha-2.info/Wireless-Providers-See-Gro
  wth-Potential-In-The-Last-Frontier_a3049.html
• These communications allow flexibility and
  relatively cheap installation of communications
  technology
• It is not financially worth installing a cable to
  each house in a sparsely populated area
• You can though install one transmitter which will
  allow communications for all of these people
• All of the benefits then of telecommunications
  are available to these areas such as Internet
  connections with all of the benefits

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Fundamentals of Mobile Computing

• The Course

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Fundamentals of Mobile Computing

• Teaching Staff
• Kelvin Hilton
• Lectures and Tutorials
• Justin Champion
• Lectures and Tutorials

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Fundamentals of Mobile Computing

• Your expectation
• You are expected to
• Attend 2 lectures per week of 1 hour each
• Attend a 1 hour tutorial slot
• Allocate private study time of about 9½ hours
  per week
• All of the material will be put onto the website
• Both tutorial and lectures
• Useful links will be put on the website
• www.fcet.staffs.ac.uk/jjc1

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Fundamentals of Mobile Computing

• Lectures
• These will be split between myself and Kelvin
• They will discuss the theory and standards behind
  various mobile data aware technologies
• 1G to 3G mobile phones
• Wireless PANS
• Wireless LANS
• Wireless MANS
• The technologies and infrastructure which keep
  these running

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Fundamentals of Mobile Computing

• Tutorials
• These will look at the development of a
  application for a mobile device.
• Please attend the tutorial slot which is
  convenient to you
• We MAY have to force people though to attend
  different slots, depending on how the numbers
  work out
• Application
• Will be developed in Microsoft Visual Basic 2008
  Compact Framework (VB.NET CF)
• The Pocket PC SDK5 will be used in the labs as
  well
• Each week a work sheet will be made available on
  the website, working towards the assignment

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Fundamentals of Mobile Computing

• Assessment
• One piece of course work
• One examination
• This will be taken in the normal examination
  period
• Broken into two parts
• Multiple Choice
• Open Questions
• Assignment (Course Work)
• Develop an application for a mobile device with a
  real-world scenario using VB 2008 CF
• This will build upon the material in the
  tutorials and will some of your own private
  studies
• A report will be submitted for the infrastructure
  you would recommend to run this application

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Fundamentals of Mobile Computing

• The Important Stuff
• In this course we want students to do WELL
• If there is a problem please let us know
• It is quite normal in this course for confusion
• There are so many terms which are used
• Particular of interest is when the same thing is
  called different items when differing technology
  is attached
• If you are struggling then please do ask either
  Myself or Kelvin
• It is a very large subject area
• A lot of technology is covered by the general
  title of Mobile Computing!
• It is difficult to follow all of the developments
  and we intend to discuss only the ones which you
  will at the moment regular see / employers will
  expect you to know about

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Conclusion

• What we have discussed today
• Introduction to some concepts
• Teaching Team
• Assessment
• Examination (50)
• In course assessment (50)