Author: Christopher Lance JohnsonPublisher:
ISBN:
Category :
Languages : en
Pages : 232
Book Description
Filter Distortion and Intersymbol Interference Effects in Direct-sequence Spread-spectrum Multiple-access Communication Systems
Author: Christopher Lance JohnsonPublisher:
ISBN:
Category :
Languages : en
Pages : 232
Book Description
Filter Distortion and Intersymbol Interference Effects in Direct Sequence Spread Spectrum Systems
Author: James Adam UetrechtFilter Distortion Effects in Direct-sequence Spread-spectrum Multiple-access Communication Systems
Author: Robert Johnson IrvinePublisher:
ISBN:
Category :
Languages : en
Pages : 90
Book Description
Narrowband Interference Suppression Techniques Using Decision Feedback Filtering in Direct Sequence Spread Spectrum Systems
Author: Katherine Jauregui LovettePublisher:
ISBN:
Category :
Languages : en
Pages : 108
Book Description
Research in Progress
Author: Spread Spectrum Communications
Author: Marvin K. SimonPublisher:
ISBN: 9780881750157
Category : Spread spectrum communications
Languages : en
Pages : 456
Book Description
Interference Effects in Direct Sequence Spread Spectrum Communications Systems
Author: Ward James DaviesPublisher:
ISBN:
Category : Electromagnetic interference
Languages : en
Pages : 366
Book Description
Partial Correlation Effects in Direct-Sequence Spread-Spectrum Multiple-Access Communication Systems
Author: D. V. SarwateMultiple Access Interference Characterization for Direct-Sequence Spread-Spectrum Communications Using Chip Waveform Shaping
Author: Matthew G. GlenPublisher:
ISBN: 9781423519928
Category : Coding theory
Languages : en
Pages : 78
Book Description
This research characterizes MAI effects on DS/SSMA system performance through simulation in Matlab , and explores the impact of multiple access code selection, chip waveform shaping, and multiple access code length on BER for both synchronous and asynchronous multiple access networks. In addition, the simulated DS/SSMA model permits rapid research into the effects of additional factors on BER. Prior to experimental testing, model validation is conducted through single user trials and by comparison with existing research for similar system designs. For synchronous and asynchronous networks, Gold coding improves BER by 7.5 and 4.0 dB, respectively, relative to aperiodic random spreading codes. Synchronous network results show that chip waveform shaping provides no significant BER improvement for the Blackman or Lanczos shapes. However, asynchronous network results show a potential BER improvement for Blackman and Lanczos shapes. Increasing code length from 31 to 511 resulted in a 7.5 dB BER improvement. Collectively, these results directly relate changes in BER to waveform cross-correlation statistics.
Author: Farnoosh Bahram