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|Title:||MAC protocol design and performance analysis for random access cognitive radio networks|
|Keywords:||Cognitive radio network|
MAC protocol design
|Source:||Chen, Q., Wong, W.-C., Motani, M., Liang, Y.-C. (2013). MAC protocol design and performance analysis for random access cognitive radio networks. IEEE Journal on Selected Areas in Communications 31 (11) : 2289-2300. ScholarBank@NUS Repository. https://doi.org/10.1109/JSAC.2013.131121|
|Abstract:||In this paper, we consider the medium access control (MAC) protocol design for random access cognitive radio network (CRN). Based on asynchronous spectrum sensing technique and RTS/CTS mechanism, a new MAC protocol, namely, cognitive-radio-based carrier sense medium access with collision avoidance (CR-CSMA/CA) is proposed to coordinate the channel access of secondary network as well as protect the operation of primary network, which applies to both single and multiple channel models. Using the G/G/1 queuing model with consideration of unsaturated and saturated network condition, we develop a framework to analyze the proposed MAC protocol and also derive closed-form expressions of specific performance metrics such as normalized throughput, average packet service time, etc. Performance evaluations illustrate and validate that the performance of CR-CSMA/CA varies with the offered traffic load of secondary network and the spectrum utilization rate of primary network, respectively, and also show that CR-CSMA/CA outperforms other relevant MAC protocols. © 1983-2012 IEEE.|
|Source Title:||IEEE Journal on Selected Areas in Communications|
|Appears in Collections:||Staff Publications|
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