【摘要】：鑒于目前網(wǎng)絡編碼在單跳無線網(wǎng)絡重傳中的應用研究都是基于單發(fā)-多收場景的局限性,提出一種應用于多發(fā)-多收無線網(wǎng)絡中的重傳機制NCWRM。該重傳機制中,網(wǎng)絡節(jié)點既可以是發(fā)送方也可以是接收方,節(jié)點發(fā)送的數(shù)據(jù)包在直傳和第一次重傳中都失敗后,第二次重傳時廣播發(fā)送由多個丟失數(shù)據(jù)包編碼組合得到的編碼包。多個接收方通過解碼編碼包得到丟失的數(shù)據(jù)包,從而實現(xiàn)一次重傳獲得多個丟失的數(shù)據(jù)包,可以有效提高重傳效率。理論分析和仿真結果表明,NCWRM算法能夠明顯提高系統(tǒng)的飽和吞吐量,同時減小開銷及丟包率。
[Abstract]:In view of the fact that the current research of network coding in single hop wireless network retransmission is based on the limitation of single transmit and multiple receiving scenario, this paper proposes a retransmission mechanism NCWRM. which is applied in multi-receiver wireless network. In this retransmission mechanism, the network node can be either the sender or the receiver, and the packet sent by the node fails after both the direct transmission and the first retransmission. On a second retransmission, the broadcast transmits an encoded packet obtained from a plurality of lost packet encoding combinations. The multiple receivers obtain the lost packets by decoding the encoded packets, so as to achieve a single retransmission to obtain multiple lost packets, which can effectively improve the efficiency of the retransmission. Theoretical analysis and simulation results show that the NCWRM algorithm can significantly improve the saturation throughput of the system, while reducing the cost and packet loss rate.
【作者單位】： 重慶郵電大學移動通信技術重點實驗室;通信抗干擾國家級重點實驗室(電子科技大學);
【基金】：國家自然科學基金資助項目(61071118,60702055) 重慶市教委科研項目(KJ111506,KJ110524)
【分類號】：TN92

【參考文獻】

相關期刊論文 前2條

1 熊志強;黃佳慶;劉威;楊宗凱;;無線網(wǎng)絡編碼綜述[J];計算機科學;2007年03期

2 肖瀟;楊路明;蒲保興;;基于網(wǎng)絡編碼的多節(jié)點無線廣播重傳策略[J];計算機應用;2008年04期

【共引文獻】

相關期刊論文 前10條

1 鄧文君;楊真;楊震;;一種新的無線mesh網(wǎng)絡編碼算法[J];重慶郵電大學學報(自然科學版);2010年02期

2 于海濤;;網(wǎng)絡編碼[J];電腦知識與技術;2010年21期

3 劉瓊;潘進;劉小瓊;;一種基于LFSR的安全網(wǎng)絡編碼[J];電腦知識與技術;2011年31期

4 吳陽陽;魏辰;王久鵬;;一種基于網(wǎng)絡編碼的重傳算法研究[J];電信工程技術與標準化;2013年10期

5 趙，

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