Joint rate allocation, routing and spectrum sharing for multi-hop Cognitive Radio Networks with imperfect spectrum sensing

Authors:
Yuan Wu;Danny H. K. Tsang
Affiliations:
Hong Kong University of Science and Technology;Hong Kong University of Science and Technology
Venue:
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Year:
2010

Citing 5
Cited 1

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Efficient Discovery of Spectrum Opportunities with MAC-Layer Sensing in Cognitive Radio Networks

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Local coordination based routing and spectrum assignment in multi-hop cognitive radio networks

Mobile Networks and Applications
Opportunistic Spectrum Access via Periodic Channel Sensing

IEEE Transactions on Signal Processing
Spectrum Sharing for Multi-Hop Networking with Cognitive Radios

IEEE Journal on Selected Areas in Communications

Secure Distributed Routing Algorithm with Optimizing Energy Consumption for Cognitive Radio Networks

Wireless Personal Communications: An International Journal

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Abstract

In this paper we study the joint rate allocation, routing and spectrum sharing policy for multi-hop Cognitive Radio Networks (CRNs). We formulate this cross layer optimization problem as a sequential decision process which aims to minimize the average total power consumption of CRNs in each scheduling cycle under the constraint that each Cognitive Radio (CR) user's traffic demand is guaranteed. We consider imperfect spectrum sensing in our problem formulation and address Primary Users (PUs) protection with the interference regulation. We use Dynamic Programming (DP) to solve the formulated problem and derive the optimal rate allocation, routing and spectrum sharing policy for CRNs.