| 基于位置和干扰限制的认知中继选择算法 |
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| 引用本文： | 喻莉,陈海波,刘聪,胡文妤.基于位置和干扰限制的认知中继选择算法[J].计算机工程,2012,38(4):7-9. |
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| 作者姓名： | 喻莉 陈海波 刘聪 胡文妤 |
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| 作者单位： | 华中科技大学电子与信息工程系武汉光电国家实验室,武汉,430074 |
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| 基金项目： | 国家“863”计划基金资助项目（2009AA012205）;国家自然科学基金资助项目（60972016）;武汉光电国家实验室基金资助项目（P080010）;湖北省杰出青年基金资助项目（2009CDA150）;新世纪优秀人才计划基金资助项目（NCET070339） |
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| 摘 要： | 针对认知无线电网络传输速率不足及对主用户造成干扰等问题，提出一种基于位置和干扰限制的认知中继选择算法。该算法根据中继节点位置对中继链路速率的影响选择中继节点，同时在限制认知用户对主用户干扰的情况下，确定中继节点的最佳发射功率。仿真结果证明，该算法能满足认知用户对主用户干扰限制的要求，提高系统吞吐量。
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| 关 键 词： | 认知无线电 中继选择 干扰限制 功率分配 高吞吐量 |
| 收稿时间： | 2011-07-06 |
Cognitive Relay Selection Algorithm Based on Location and Interference Constraint |
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| YU Li
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CHEN Hai-bo
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LIU Cong
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HU Wen-yu.Cognitive Relay Selection Algorithm Based on Location and Interference Constraint[J].Computer Engineering,2012,38(4):7-9. |
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| Authors: | YU Li CHEN Hai-bo LIU Cong HU Wen-yu |
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| Affiliation: | (Wuhan National Laboratory for Optoelectrionics, Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China) |
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| Abstract: | Aiming at the problems of low transmission rate and the interference introduced to the primary user by cognitive users, this paper proposes a cognitive relay selection algorithm based on location and interference constraint, the relay is chosen according to the relation between the location of cognitive relay nodes and the transmission rate of the relay link, and the optimal transmitting power is determined under the interference restraint of cognitive users to primary users. Simulation results show that the algorithm can both increase the throughput and restrict the interference of cognitive users to primary users successfully. |
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| Keywords: | cognitive radio relay selection interference constraint power allocation high throughput |
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