Abstract
Spectrum sharing fairness is an important topic in cognitive radio ad hoc networks (CRAHNs) and cognitive radio sensor networks (CRSNs). Consensus-based protocols can provide light-weight and efficient solutions for CRAHNs and CRSNs but the theoretical ground needs to be investigated for spectrum sharing fairness. In this paper, we investigate the convergence condition when applying a consensus-based protocol to spectrum sharing while ensuring spectrum sharing fairness. Based on the local observation and local control scheme using spectrum-related information, an individual cognitive node can effectively perform the spectrum sharing. Then we propose a consensus-based protocol for spectrum sharing. Supported with computer simulation results, we show the effectiveness of using the proposed consensus-based protocol to solve the spectrum sharing problems in CRAHNs and CRSNs.
Highlights
As a result of the development of cognitive radio (CR) technology, the concept of cognitive radio ad hoc networks (CRAHNs) has been proposed in 2009 [1]
The remainder of the paper is organized as follows: in Section 2, we discuss the related work in the literature; in Section 3, we mainly discuss the local control scheme for spectrum sharing; Section 4 gives an analytical model for the defined fairness concept; in Section 5, we propose a consensus-based communication protocol for CRAHNs and cognitive radio sensor networks (CRSNs) and perform simulation-based analysis; Section 6 concludes the paper and discusses future work
We mainly explore the effectiveness of using a consensus-based protocol to solve the fairness problem in spectrum sharing
Summary
As a result of the development of cognitive radio (CR) technology, the concept of cognitive radio ad hoc networks (CRAHNs) has been proposed in 2009 [1]. As an important research topic in CRAHNs and CRSNs, spectrum sharing schemes have to perform spectrum allocation based on local observations, while ensuring fairness in these schemes. We explore how to use the consensus protocol to address spectrum sharing fairness in CRAHNs and CRSNs. We will first introduce the concept of local control schemes, by which a CR can locally perform spectrum sharing process with sensing inputs and decision outputs. The remainder of the paper is organized as follows: in Section 2, we discuss the related work in the literature; in Section 3, we mainly discuss the local control scheme for spectrum sharing; Section 4 gives an analytical model for the defined fairness concept; in Section 5, we propose a consensus-based communication protocol for CRAHNs and CRSNs and perform simulation-based analysis; Section 6 concludes the paper and discusses future work
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