| 摘要: |
| 介绍了无线自组织网络能量有效的广播和组播问题,总结了近年来提出的各种能量有效的广播与组播算法及主要设计思想.首先概述了广播/组播技术,分析了其技术难点.然后介绍了自组织网络的通信模型和能耗模型,以及能量有效性的定义和优化目标.最后对现有的研究成果按照能量最小化和最大化生命周期这两个方面进行分类介绍并进行了比较,总结了研究现状中存在的问题、需要进一步研究的内容以及技术发展趋势. |
| 关键词: 无线自组织网络 能量有效性 最大化生命周期 广播 组播 近似算法 全向天线 定向天线 |
| DOI： |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant No.10671208 (国家自然科学基金); the National High-Tech Research and Development Plan of China under Grant No.2008AA01Z120 (国家高技术研究发展计划(863)); the Foundation of the Renmin University of China under Grant No.10XNJ032 (中国人民大学基金) |
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| Energy-Efficient Broadcast and Multicast in Wireless Ad Hoc Networks |
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LI Zheng,LI De-Ying
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| Abstract: |
| This paper gives an introduction to the energy-efficient broadcast/multicast routing problem and makes a survey on recent existed algorithms. Firstly, an introduction is made to the broadcast/multicast routing problem. Secondly, the communication and energy models, the definition of energy-efficiency and the optimization objectives are clearly presented. Finally, comparison is made for existing representative algorithms in two aspects: minimum energy and maximum lifetime. Open research issues and research trends are also discussed. |
| Key words: wireless ad hoc network energy efficient maximum lifetime broadcast multicast approximation algorithm omni-directional antenna directional antenna |
