Throughput Maximization in Cooperation Based Symbiotic Cognitive Radio Networks
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概要
- 論文の詳細を見る
In the symbiotic cognitive radio (CR) networks, the CR users (CUs) may assist the primary transmission in a cooperation time, and obtain an incentive time for their own data transmission. In this letter, we study the throughput maximization problem in the symbiotic CR networks. Under the symbiosis and transmit power constraints, we aim to find the optimal cooperation time to assist the primary transmission and power allocations among the CUs. Given the cooperation time, the optimal power allocations can be solved by multi-level water-filling (MWF) with individual volume limits. A theoretical analysis is presented on the cooperation time and a modified bisection algorithm with low complexity is proposed to find the sub-optimal cooperation time. Simulation results show that the spectrum usage efficiency can be significantly improved as the number of CUs increases.
- （社）電子情報通信学会の論文
- 2010-11-01
著者
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XUE Peng
Department of Information and Communication Engineering, Inha University
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KIM Duk
Department of Information and Communication Engineering, Inha University
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Kim Duk
Inha University
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Kim Duk
Department Of Information And Communication Engineering Inha University
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Kim Duk
Inha Univ. Kor
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Xue Peng
Inha Univ. Kor
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Xue Peng
Department Of Information And Communication Engineering Inha University
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Gong Peng
Department Of Information And Communication Engineering Inha University
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Kim Duk
Department Of Biology Graduate School Kyung Hee University
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