| 基于机会式网络编码的高效广播传输算法 |
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| 引用本文： | 卢 冀,吴成柯,肖 嵩,张 冉.基于机会式网络编码的高效广播传输算法[J].通信学报,2012(1):64-70. |
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| 作者姓名： | 卢 冀 吴成柯 肖 嵩 张 冉 |
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| 作者单位： | 中国电科集团第54研究所;通信网信息传输与分发技术重点实验室;西安电子科技大学ISN重点实验室;中国电科集团第27研究所 |
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| 基金项目： | 国家自然科学基金资助项目(60832001,60702058,60802076);高等学校创新引智计划基金资助项目(B08038)~~ |
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| 摘 要： | 为了提高无线网络广播传输的效率,针对单跳无线网络提出了采用编码方法的广播传输算法。在传统的无线广播传输模型的基础上,分别实现了基于机会式网络编码的单组合分组广播传输算法和多组合分组广播传输算法。它们采用不同的策略选择多个丢失分组编码组合成重传分组,并通过从编码组合数据分组中恢复丢失分组的方式来提高广播传输的吞吐量。仿真结果表明,新算法在不同无线信道传输模型下相比已有的算法有效地降低了广播传输所需的传输带宽。
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| 关 键 词： | 无线网络 网络编码 机会式网络编码 广播传输 带宽 |
Efficient broadcast transmission algorithms based on opportunistic network coding |
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| LU Ji,WU Cheng-ke,XIAO Song,ZHANG Ran.Efficient broadcast transmission algorithms based on opportunistic network coding[J].Journal on Communications,2012(1):64-70. |
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| Authors: | LU Ji WU Cheng-ke XIAO Song ZHANG Ran |
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| Affiliation: | 1.China Electronics Technology Group Corporation No.54 Institute,Shijiazhuang 050081,China; 2.Science and Technology on Information Transmission and Dissemination in Communication Network Laboratory,Shijiazhuang 050081,China; 3.National ISN Key Laboratory,Xidian University,Xi’an 710071,China; 4.China Electronics Technology Group Corporation No.27 Institute,Zhengzhou 450005,China) |
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| Abstract: | Opportunistic network coding(ONC) based broadcast transmission algorithms were proposed to improve the transmission efficiency for wireless single-hop networks.Based on the traditional wireless broadcast transmission model,ONC based solo combination packet broadcast transmission(ONCSB) algorithm and ONC based multiple combination packets broadcast transmission(ONCMB) algorithm were proposed respectively.By employing the method of combina-tion different lost packets with different strategies,the ONCSB and ONCMB can improve the throughput with recovering lost packets via a combination packet efficiently.The simulation results show that either ONCSB or ONCMB can lead to better transmission bandwidth performance compared with other algorithms under different wireless channel conditions. |
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| Keywords: | wireless networks network coding opportunistic network coding broadcast transmission bandwidth |
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