Paper Info
Title
Stopping Rule-Driven Channel Access in Multi-Channel Cognitive Radio Networks
Abstract
In this paper, we propose a stopping rule-driven channel access scheme for a secondary user pair in multichannel cognitive radio networks (CRNs), aiming to achieve a desired tradeoff between channel sensing and channel access. In the proposed approach, we first formulate the sensing-access tradeoff problem as a 1-stage look-ahead stopping problem. We then derive two stopping conditions, namely power-limited stopping and bandwidth-limited stopping, whereby a desired tradeoff between sensing overhead and throughput increase can be achieved. Once a stopping condition is reached, a secondary user pair stops sensing and starts accessing previously sensed free channels for packet transmission. Simulation results show that, in the case of perfect sensing, the proposed approach outperforms a greedy approach by at least 80% in terms of throughput. Imperfect sensing and its impact are also addressed and evaluated.
Year
DOI
Venue
2011
10.1109/icc.2011.5963187
ICC
Keywords
Field
DocType
multichannel cognitive radio networks,bandwidth-limited stopping,stopping rule-driven channel access,cognitive radio,power-limited stopping,multi-access systems,channel sensing,1-stage look-ahead stopping problem,packet transmission,resource manager,throughput,cognitive radio network,availability,sensors,upper bound,resource management
Resource management,Packet transmission,Upper and lower bounds,Computer science,Communication channel,Computer network,Multi channel,Real-time computing,Throughput,Stopping rule,Cognitive radio
Conference
Volume
Issue
ISSN
null
null
1550-3607 E-ISBN : 978-1-61284-231-8
ISBN
Citations 
PageRank 
978-1-61284-231-8
4
0.47
References 
Authors
7
3
Name
Order
Citations
PageRank
Ho Ting Cheng130517.35
Hangguan Shan246144.52
Zhuang, W.34190302.05