Primary User-aware Network Coding for Multi-hop Cognitive Radio Networks

Arsany Guirguis; Raymond Guirguis; Moustafa Youssef

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arXiv · 1408.2078

Primary User-aware Network Coding for Multi-hop Cognitive Radio Networks

Arsany Guirguis·Raymond Guirguis·Moustafa Youssef

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Abstract

Network coding has proved its efficiency in increasing the network performance for traditional ad-hoc networks. In this paper, we investigate using network coding for enhancing the throughput of multi-hop cognitive radio networks. We formulate the network coding throughput maximization problem as a graph theory problem, where different constraints and primary users' characteristics are mapped to the graph structure. We then show that the optimal solution to this problem in NP-hard and propose a heuristic algorithm to efficiently solve it. Evaluation of the proposed algorithm through NS2 simulations shows that we can increase the throughput of the constrained secondary users' network by 150\% to 200\% for a wide range of scenarios covering different primary users' densities, traffic loads, and spectrum availability.

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BibTeX RIS

Arsany Guirguis, Raymond Guirguis, Moustafa Youssef. 2014-08-09. Primary User-aware Network Coding for Multi-hop Cognitive Radio Networks. https://arxiv.org/abs/1408.2078

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