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Spectrum Mobility Modeling for Delay Sensitive Traffic in Cognitive Radio Networks |
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Multimedia traffic demands high bit rate and minimal delay. However, the uncertainty in channel availability and hostile environment in Cognitive Radio Networks (CRN) may limit the throughput of real-time applications. In CRN, channel availability is time varying and by continuous switching among different channels gives the continuity of communication; at the same time, CRN is not an interference free network. Thus delay is induced due to interference and continuous switching among different channels. On the other hand, high bit rate is susceptible to channel fading. To address the dynamics of a) time varying primary users traffic and b) fading channel, prediction based technique has been proposed to achieve efficient spectrum mobility. |
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Md Rashidul Hasan received his BSc (Engg.) degree in Electrical and Electronic Engineering from Bangladesh University of Engineering and Technology (BUET) in 2004. Before commencing his PhD at Monash University in June 2008, he worked as a network planner in GrameenPhone Ltd., Bangladesh. His research interests are in wireless networking and multimedia communication. |
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