| Pei Errong( 裴二荣),Wang Sheng,Zhang Zhizhong.[J].高技术通讯(英文),2012,18(2):145~150 |
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| Actual implementation of spectrum-sharing systems in rayleigh fading channels① |
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| DOI： |
| 中文关键词: |
| 英文关键词: cognitive radio, spectrum sharing, power allocation, seller’s market trading mechanism, convex optimization |
| 基金项目: |
| Author Name | Affiliation | | Pei Errong( 裴二荣) | | | Wang Sheng | | | Zhang Zhizhong | |
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| 中文摘要: |
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| 英文摘要: |
| In actual implementation of spectrum sharing systems, due to the selfishness of primary users, primary users often refuse the access of secondary users to their licensed spectrum bands even if the access of secondary users doesn't affect their transmission. Aimed at the selfishness problem of primary users, a seller's market trading mechanism is introduced which can not only stimulate primary users to tolerate larger interference power but also give the primary users an appropriate compensation at the same time, and which has very important practical significance. Based on the mechanism, the achievable maximal gross profit of secondary users and their optimal power allocation scheme in the Rayleigh fading environment are derived, and the interference price of primary users and the average revenue of secondary users’impact on them are also studied. Numerical calculation results are conducted to verify our theoretical results. |
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