Fast Frequency-Hopping Dynamic Multiple-Access for Cognitive Radios: Suboptimum Noncoherent Maximum-Likelihood Multiuser Detection


Zhang, Shuo, Yang, Lie-Liang and Zhang, Youguang (2010) Fast Frequency-Hopping Dynamic Multiple-Access for Cognitive Radios: Suboptimum Noncoherent Maximum-Likelihood Multiuser Detection At The Seventh International Symposium on Wireless Communications Systems (ISWCS), United Kingdom. 19 - 22 Sep 2010.

Download

[img] PDF 88-99099.pdf - Version of Record
Download (210kB)

Description/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 $M$-ary frequency-shift keying (FFH/MFSK) associated with suboptimum 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.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Event Dates: 19 - 22 September 2010
Venue - Dates: The Seventh International Symposium on Wireless Communications Systems (ISWCS), United Kingdom, 2010-09-19 - 2010-09-22
Organisations: Southampton Wireless Group
ePrint ID: 272626
Date :
Date Event
September 2010Published
Date Deposited: 05 Aug 2011 11:05
Last Modified: 17 Apr 2017 17:41
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/272626

Actions (login required)

View Item View Item