Cooperative Cognitive Radio Networking: System Model, by Bin Cao, Qinyu Zhang, Jon W. Mark

By Bin Cao, Qinyu Zhang, Jon W. Mark

This SpringerBrief examines the energetic cooperation among clients of Cooperative Cognitive Radio Networking (CCRN), exploring the procedure version, allowing recommendations, and performance.

The short presents a scientific learn on energetic cooperation among fundamental clients and secondary clients, i.e., (CCRN), through the discussions on examine concerns and demanding situations in designing spectrum-energy effective CCRN. As an attempt to make clear the layout of spectrum-energy effective CCRN, they version the CCRN in keeping with orthogonal modulation and orthogonally dual-polarized antenna (ODPA). The source allocation matters are targeted with appreciate to either versions, by way of challenge formula, answer procedure, and numerical effects. eventually, the optimum communique ideas for either fundamental and secondary clients to accomplish spectrum-energy effective CCRN are analyzed.

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1 / be the bit PP PS C1 error rate (BER) of the PU’s signal received by the SU. 1 Pb /L approximation is for small Pb and large L. p. p. p. p. p. p. , the SU does not transmit. 3 Problem Formulation In this subsection, we formulate a throughput optimization problem under certain constraints in a CCRN. Instead of maximizing either the PU’s throughput, or the SU’s throughput, we propose a general metric of weighted sum throughput, namely CW which incorporates both the PU’s and SU’s throughputs to evaluate the cooperation performance.

In cooperative communication, the relaying SU can provide a better quality path for the PU than the direct path, or an additional propagation path to facilitate diversity reception at the destination. In the latter case, the receiving PU can appropriately combine the signals from the direct and relayed paths to obtain diversity gain. Relaying is a signal forwarding service, which can be performed using an amplify-and-forward (AF) or a decode-and-forward (DF) relaying mode. Whether the SU can offer feasible relaying service to the PU strictly depends on the quality of the propagation channels between the transmitting PU and the relaying 2 Orthogonal Signaling Enabled Cooperative Cognitive Radio Networking 21 SU, and between the relaying SU and the receiving PU.

Simeone, U. Mitra, and M. Zorzi, “Cooperation and coordination in cognitive networks with packet retransmission,” in Proc. IEEE Int’l Inf. Theory Workshop, Taormina, Oct. 2009. 15. O. Simeone, Y. Bar-Ness, and U. Spagnolini, “Stable throughput of cognitive radios with and without relaying capability,” IEEE Trans. Wirel. , vol. 55, no. 12, pp. 2351–2360, Dec. 2007. 16. Y. Yi, J. Zhang, Q. Zhang, T. Jiang, and J. Zhang, “Cooperative communication-aware spectrum leasing in cognitive radio networks,” in Proc.

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