Towards joint routing and spread-spectrum channelization in cognitive ad hoc networks

Authors:
Kanke Gao;Lei Ding
Affiliations:
The State University of New York at Buffalo;The State University of New York at Buffalo
Venue:
Proceedings of the ACM CoNEXT Student Workshop
Year:
2010

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Resource allocation and cross-layer control in wireless networks

Foundations and Trends® in Networking
CRAHNs: Cognitive radio ad hoc networks

Ad Hoc Networks

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Abstract

We consider a spread-spectrum channelization based secondary network that operates cognitively to coexist with primary users. A new framework for cross-layer design that incorporates adaptation between spectrum-spreading channelization and routing is proposed. Joint power and spreading code allocation in conjunction of the back-pressure routing is developed to optimize the throughput over the whole network. The preliminary simulation results demonstrate significant performance gains compared to random spreading code assignment algorithm.