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Design of optimized engine for Direct Sequence Spread Spectrum Transceiver

Design of optimized engine for Direct Sequence Spread Spectrum Transceiver. Rajagopal, Harish Nawani, Varun. Outline. Motivation System functional diagram Implementation Details Optimizations Results Future work. Motivation.

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Design of optimized engine for Direct Sequence Spread Spectrum Transceiver

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  1. Design of optimized engine for Direct Sequence Spread Spectrum Transceiver Rajagopal, Harish Nawani, Varun

  2. Outline • Motivation • System functional diagram • Implementation Details • Optimizations • Results • Future work

  3. Motivation • Direct Sequence Spread Spectrum is one of the most widely used algorithm in communication applications. • The implementation of the DSS algorithm lends itself to optimization at different levels. • Speeding up the algorithm gives us more opportunity to increase the efficiency in tracking part of the algorithm to reduce multi-path fading effect in CDMA systems • It also gives us faster acquisition time for initial synchronization of the data.

  4. Basic Direct Sequence Spread Spectrum Architecture Transmitter Receiver

  5. PN Sequence Synchronization at the Receiver Acquisition Tracking

  6. Digital Matched filter Un-Optimized Structure Optimized Structure

  7. Loop Filter Un-optimized Structure Optimized Structure

  8. Results Matlab Simulation Verilog Simulation

  9. Results Un-optimized simulation Optimized simulation

  10. Future Work • Implementation of Dynamic Digital Matched filter to reduce hardware requirements • Implementation of a faster squaring algorithm using folding ROM approach

  11. Thank You Best of luck for the Exam

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