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Fast frequency-hopping dynamic multiple-access for cognitive radios: Suboptimum noncoherent maximum-likelihood multiuser detection

  • Shuo Zhang*
  • , Lie Liang Yang
  • , Youguang Zhang
  • *Corresponding author for this work
  • Beihang University
  • University of Southampton

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We propose a novel dynamic multiple-access (DMA) scheme for application in cognitive radios (CRs). This DMA scheme is implemented by fast frequency hopping with Mary frequency-shift keying (FFH/MFSK) associated with sub-optimum noncoherent maximum-likelihood multiuser detection (ML-MUD). In our studies, we assume that the primary users (PUs) and the cognitive radio users (CRUs) are operated in the interweave paradigm. The PUs activate to communicate according to a Poisson process and the duration of an activation obeys exponential distribution. The bit error rate (BER) and throughput performance of the dynamic FFH/MFSK systems are investigated by simulations, when assuming communications over Rayleigh fading channels. Our studies and simulation results demonstrate that the dynamic FFH/MFSK with suboptimum noncoherent ML-MUD constitutes one of the promising candidates for DMA in CRs. It has low-complexity and employs high-flexibility for DMA and seamless transition between different frequency bands.

Original languageEnglish
Title of host publicationProceedings of the 2010 7th International Symposium on Wireless Communication Systems, ISWCS'10
Pages238-243
Number of pages6
DOIs
StatePublished - 2010
Event2010 7th International Symposium on Wireless Communication Systems, ISWCS'10 - York, United Kingdom
Duration: 19 Sep 201022 Sep 2010

Publication series

NameProceedings of the 2010 7th International Symposium on Wireless Communication Systems, ISWCS'10

Conference

Conference2010 7th International Symposium on Wireless Communication Systems, ISWCS'10
Country/TerritoryUnited Kingdom
CityYork
Period19/09/1022/09/10

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