eprintid: 3257
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/32/57
datestamp: 2023-11-09 15:51:31
lastmod: 2023-11-09 15:51:31
status_changed: 2023-11-09 15:46:25
type: conference_item
metadata_visibility: show
creators_name: Armi, N.
creators_name: Yusoff, M.Z.
creators_name: Saad, N.M.
title: Cooperative spectrum sensing in decentralized cognitive radio system
ispublished: pub
keywords: Achievable throughputs; Better performance; Centralized networks; Co-operative spectrum sensing; Decentralized networks; Dynamic spectrum accesses (DSA); Opportunistic spectrum accesses (OSA); Partially observable Markov decision process, Cognitive radio; Signal to noise ratio, Radio systems
note: cited By 5; Conference of IEEE EuroCon 2013 ; Conference Date: 1 July 2013 Through 4 July 2013; Conference Code:101060
abstract: Cooperative spectrum sensing (CSS) is capable to improve the performance of signal detection. It is one solution to overcome fading, shadowing, and uncertainty noises. Unlike centralized networks, Secondary User (SU) in decentralized networks independently senses license channel without forwarding the sensing result to central coordinator. This paper investigates the performance of Decentralized Multiuser CSS (DMCSS) in Cognitive Radio (CS) system. Partially observable Markov decision process (POMDP) is used as an aid for SU to sense and access a license channel. It models spectrum as Markov discrete process where idle and busy states are represented by '0' and '1'. The comparisons are made against Centralized Multiuser Cooperative Spectrum Sensing (CMCSS). The derived results show that CMCSS has better performance than DMCSS model. However, at certain values of SNR, DMCSS performance outperforms the achievable throughput by CMCSS through setting of collision threshold (ζ). © 2013 IEEE.
date: 2013
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84888618219&doi=10.1109%2fEUROCON.2013.6624974&partnerID=40&md5=f4815ee6d341265ba6ac49e9552cec75
id_number: 10.1109/EUROCON.2013.6624974
full_text_status: none
publication: IEEE EuroCon 2013
place_of_pub: Zagreb
pagerange: 113-118
refereed: TRUE
isbn: 9781467322324
citation:   Armi, N. and Yusoff, M.Z. and Saad, N.M.  (2013) Cooperative spectrum sensing in decentralized cognitive radio system.  In: UNSPECIFIED.