Hybrid multi-channel cooperative spectrum sensing to satisfy channel target
Senadji, Bouchra & Chang, Kevin (2013) Hybrid multi-channel cooperative spectrum sensing to satisfy channel target. In 2013 IEEE 24th International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), IEEE, London, United Kingdom, pp. 2301-2305.
Spectrum sensing of multiple primary user channels is a crucial function in cognitive radio networks. In this paper we propose an optimal, sensing resource allocation algorithm for multi-channel cooperative spectrum sensing. The channel target is implemented as an objective and constraint to ensure a pre-determined number of empty channels are detected for secondary user network operations. Based on primary user traffic parameters, we calculate the minimum number of primary user channels that must be sensed to satisfy the channel target. We implement a hybrid sensing structure by grouping secondary user nodes into clusters and assign each cluster to sense a different primary user channels. We then solve the resource allocation problem to find the optimal sensing configuration and node allocation to minimise sensing duration. Simulation results show that the proposed algorithm requires the shortest sensing duration to achieve the channel target compared to existing studies that require long sensing and cannot guarantee the target.
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|Item Type:||Conference Paper|
|Keywords:||Cognitive radio, Spectrum sensing, Cooperating spectrum sensing, Multi-channel sensing|
|Divisions:||Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2013 IEEE|
|Deposited On:||17 Mar 2014 23:18|
|Last Modified:||23 Aug 2016 22:46|
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