Spatial–Temporal Queuing Theoretic Modeling Of Opportunistic Multihop Wireless Networks With And Without Cooperation

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Authors: Dibakar DasAlhussein A Abouzeid
Published in: IEEE Transactions On Wireless Communications
Year: 2015   
Citations: 0
EI: NO
Abstract:
in this paper , we characterize the average end to end delay in an opportunistic multihop secondary cognitive radio network overlaid with a primary multihop network the nodes in both networks use a random medium access control scheme with exponentially distributed backoff we first model the network as a two class priority queuing network and use queuing theoretic approximation techniques to obtain a set of relations involving the mean and second moments of the interarrival and service times of packets at a secondary node then , applying these parameters to an equivalent open single class g g 1 queuing network , we obtain expressions for the average end to end delay of a packet in the secondary network using a diffusion approximation next , we extend the analysis to a case where secondary nodes cooperatively relay primary packets to improve their own transmission opportunities the mathematical results are validated against extensive simulations
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