Channel capacity optimization via exploiting multi-SU coexistence in Cognitive Radio Networks
文献类型：会议论文
| 作者 | Lu, Dianjie; Huang, XiaoXia; Lu, Jing; Fan, Jianping |
| 出版日期 | 2011 |
| 会议名称 | IEEE Wireless Communications and Networking Conference (WCNC) |
| 会议地点 | Cancun, MEXICO |
| 英文摘要 | In Cognitive Radio Networks (CRNs), when the Primary Users (PUs) appear, the SUs have to evacuate the licensed spectrum in use or reduce the transmit power so that no harmful interference is introduced to the PUs. In this paper, we explore the multiple Secondary Users (SUs) coexistence system in CRNs based on power control mechanism and interference temperature model. We propose an optimal solution that can maximize the channel capacity and minimize the spectrum handover overhead, constrained by the accumulated interference of both the SUs-to-PU and SUs-to-SUs. We formulate this problem as a non-linear optimizationproblem and propose a heuristic algorithm to solve it efficiently. Experimental results show that compared with two alternative approaches, our algorithm can improve the usage of the spectrum by up to 51% (with a random approach) and up to 278% (with a conservative approach). © 2011 IEEE.(16 refs) |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/3617]  |
| 专题 | 深圳先进技术研究院_数字所 |
| 作者单位 | 2011 |
| 推荐引用方式 GB/T 7714 | Lu, Dianjie,Huang, XiaoXia,Lu, Jing,et al. Channel capacity optimization via exploiting multi-SU coexistence in Cognitive Radio Networks[C]. 见:IEEE Wireless Communications and Networking Conference (WCNC). Cancun, MEXICO. |
入库方式： OAI收割
来源：深圳先进技术研究院
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