| 基于能量优化的Ad hoc认知无线电网络组播路由启发式算法研究* |
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| 引用本文： | 苗许娜,周贤伟,吴华怡,刘臻臻.基于能量优化的Ad hoc认知无线电网络组播路由启发式算法研究*[J].计算机应用研究,2010,27(1):284-287. |
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| 作者姓名： | 苗许娜 周贤伟 吴华怡 刘臻臻 |
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| 作者单位： | 北京科技大学,信息工程学院,通信工程系,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目（60773074）；国家“863”计划资助项目（2009AA01Z209，2007AA01Z213） |
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| 摘 要： | 提出了两个Ad hoc认知无线电网络中基于能量优化的组播路由启发式算法。一个是基于经典的最短路径树的组播算法（shortest path tree algorithm，SPTA），另一个是基于能量函数的组播启发式算法(energy function based heuristic algorithm，EFHA)。这两个算法都在考虑了认知无线电网络特性的基础上建立能量优化的组播树，从应用例子可以看出， EFHA算法明显优于SPTA算法，并且复杂度较低。
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| 关 键 词： | 自组织认知无线电网络 组播树 启发式算法 能量优化 |
Energy efficient multicast routing heuristic algorithms in Ad hoc cognitive radio networks |
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| MIAO Xu-n,ZHOU Xian-wei,WU Hua-yi,LIU Zhen-zhen.Energy efficient multicast routing heuristic algorithms in Ad hoc cognitive radio networks[J].Application Research of Computers,2010,27(1):284-287. |
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| Authors: | MIAO Xu-n ZHOU Xian-wei WU Hua-yi LIU Zhen-zhen |
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| Affiliation: | Dept.of Communication Engineering/a>;College of Information Engineering/a>;University of Science & Technology Beijing/a>;Beijing 100083/a>;China |
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| Abstract: | This paper proposed two heuristic algorithms.One was SPTA which was based on shortest path tree, and the other one was EFHA which used energy functions. Each algorithm constructed an energy efficient multicast tree considering the characteristics of the cognitive radio networks. The results of examples show that the multicast tree obtained by EFHA algorithm has lower energy consumption and time complexity compared with that obtained by SPTA algorithm. |
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| Keywords: | Ad hoc cognitive radio networks multicast tree heuristic algorithm energy efficient |
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