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Wireless Communication System

Wireless Communication System. … for << application >>. Basic System Design. Describe some key features of your system . Duplex method. How do you separate signals in up and downlink? Time Division Duplex Frequency Division Duplex frequency separation. Frequency reuse / etiquette.

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Wireless Communication System

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  1. Wireless Communication System … for << application >>

  2. Basic System Design • Describe some key features of your system ...

  3. Duplex method • How do you separate signals in up and downlink? • Time Division Duplex • Frequency Division Duplex • frequency separation

  4. Frequency reuse / etiquette • Cellular or non-cellular? • Cell sizes? Cluster size, …. • Centralised frequency assignment, decentralised, random access, ..

  5. The uplinkFull in those parameters that you deem relevant for discussion • User bit rate: xyz kbit/s • Channel symbol rate: • Transmit bandwidth: • Frequency band: • Modulation method (OFDM, DS-CDMA) • parameters: FFT size, spreading factor, Multi-user detection? • Multiple access method • Diversity method • none / antenna / time / frequency: which spacing? • Transmit power

  6. The downlink • User bit rate: xyz kbit/s • Channel symbol rate: • Transmit bandwidth: • Frequency band: • Modulation method (OFDM, DS-CDMA) • parameters: FFT size, spreading factor, rake size • Diversity method • none / antenna / time / frequency: which spacing? • Transmit power

  7. Technologies Mention specific components of the system, for instance • FFT for OFDM, rake for CDMA • Do you need a linear power amplifier?

  8. Data formatFill in (only) if you have had time to think about it • # of user bits per packet • # of overhead bits per packet • addressing • synchronization • CRC error corrections • guard times

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