(沈陽工業大學 理學院,遼寧省 沈陽市110870)
摘要:以無線mesh網絡中數據傳輸往返時間和網關緩沖區的使用率為控制參數,提出了一種mesh網絡的速率自適應的擁塞控制機制,根據反饋的控制參數來調整無線mesh網絡源節點的數據包的發送速率,平衡進入鏈路的數據包,降低網內的干擾。仿真結果表明速率自適應的擁塞控制機制,改善了網絡流性能,較當前的一些算法有了明顯的改善。
關鍵詞:無線mesh網絡;擁塞控制;
網絡吞吐量;緩沖區使用率
中圖分類號:TN923 文獻標識碼:A 文章編號:
Adaptive rate congestion control in wireless mesh networks
LIU Yan-qiu1,QIN Rui-xian2
(School of Science, Shen yang University of Technology ,Shenyang ,110870,China)
Abstract:A congestion control adaptive pacing mechanism for wireless mesh networks was presented by round trip times in the wireless mesh networks and butter utilization rate, which controlled the transmission rate of wireless-to-wired
packets at the Source Nodes to avoid serious interference, among packets. The simulation results show that the congestion control pacing mechanism improves the performance of multihop flows, which is better than the current algorithm.
Key words: wireless mesh networks; congestion control; network
goodput; butter utilization rate
參考文獻
[1] 吳凡,毛玉明,張科.無線Mesh網絡關鍵技術[J].中興通訊技術,2008, 14(2):25-29.
[2] 張瑞,洪佩琳,李津生,郭立鵬.無線網絡中一種改進的TCP擁塞控制機制[J].電路與系統學報, 2006, 11 (6): 7-13 .
[3] ELRAKABAWY S, KLEMM A, LINDEMANN C. TCP with adaptive pacing for multihop wireless networks[A].MobiHoc’05[C]. 2005. 288-299.
[4] ELRAKABAWY S, KLEMM A, LINDEMANN C. Gateway adaptive pacing for TCP across Multihop wireless networks and the Internet[A]. MS WiM’06[C],2006,173-182.
作者簡介:
劉艷秋,男,吉林省四平市人, 生于1963年,博士,沈陽工業大學教授,碩士生導師,主要從事復雜網絡可靠性分析的優化模型與算法的研究。