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一种基于TCP控制报文的MAC层自适应算法 被引量：3

MAC-layer adaptation algorithm based on TCP control segment for wireless LANs
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摘要 由于无线信道的特殊性,在WLAN应用中,TCP的传输性能会下降。提出依据TCP报文控制段采用不同的MAC传输参数的调整方案。该方案考虑到了802.11 MAC参数的可调整性和TCP控制报文在传输流程的重要性,可有效提高控制报文在无线信道上传输能力,避免了由于信道访问冲突和拥塞而造成TCP性能下降的问题,从而提高TCP的传输效率。通过仿真验证了该方案的可行性。 Due to the link characteristics of wireless channel, the performance of TCP decreases in WLAN networks. A MAC-layer adaptation algorithm based on TCP control segment was proposed. The scheme can enhance the throughput capacity of TCP control segment in the wireless channel and improve the transmission reliability of TCP control segment when there are access conflict and congestion in the wireless channel. Therefore, the transmission efficiency and reliability of TCP segments can be enhanced too. In this paper, the adaptable parameter of 802.11 MAC-layer was analyzed and the importance of the TCP control segment in transmission flow was discussed. The evaluation of the proposed scheme shows that the important gain in performance was obtained compared to that of traditional 802.11 MAC-layer.
作者 谢红刚 易本顺
机构地区 武汉大学电子信息学院
出处 《计算机应用》 CSCD 北大核心 2008年第1期39-41,共3页 journal of Computer Applications
关键词 TCP WLAN MAC 跨层设计 TCP WLAN MAC cross-layer design
分类号 TP393.03 [自动化与计算机技术—计算机应用技术]
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参考文献7

  • 1XYLOMENOS G, POLYZOS G C, MAHONEN P, et al. TCP performance issues over wireless links[J]. IEEE Communications Magazine, 2001, 39(2): 52-58.
  • 2IEEE Std 802. 11-1997, Wireless Lan Medium Access Control (MAC) and Physical Layer (PHY) specifications[S], 1997.
  • 3LOHIER S, GHAMRI-DOUDANE Y, PUJOLLE G. MAC-layer adaptation to improve TCP flow performance in 802. 11 wireless Networks[ C] // WiMob'2006. Montreal: IEEE Press, 2006,427 - 433.
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同被引文献15

  • 1王敏.河南省台站上行气象信息传输质量管理系统的构建与应用[J].气象与环境科学,2007,30(3):94-95. 被引量：5
  • 2罗琳,杨洁,李效敏.上行气象信息传输中常见问题及对策[J].科技风,2010(13). 被引量：1
  • 3叶进,王建新,龚皓.无线/有线网络中基于自适应丢包区分的TCP改进[J].通信学报,2007,28(5):15-21. 被引量：13
  • 4Fu Zhenghua,Luo Haiyun,Peros zerfos,et al.The impact of multihop wireless channel on TCP performance[J].IEEE Transactions on Mobile Computing,2005,4(2):209-221.
  • 5Xu S,Saadawi T.Does the IEEE 802.11 MAC protocol work well in multihop wireless Ad Hoc networks?[J].IEEE Communication Magazine,2001,39(6):130-137.
  • 6Li J,Blake C,Douglas S J,et al.Capacity of Ad Hoc wireless networks[C]//ACM MobiCom'01,Rome,Italy,July,2001:61-69.
  • 7Raffaele Bruno,et al.Mesh networks:commodity multihop Ad hoc networks[J].IEEE Communications Magazine,March,2005,43(3):123-131.
  • 8Jangeun Jun,Sichitiu M L.The nominal capacity of wireless mesh networks[J].IEEE Communications Magazine,2003,10(5):8-14.
  • 9李金莱.UDP协议及若干改进意见.科技信息(科学教研),2007,(11):107-107.
  • 10Nsnam Sourceforge Project. The Network Simlator2[EB/OL]. [2010-12-10]. http://nsnam.isi.edu/nanam/.

引证文献3

二级引证文献8

计算机应用
2008年 第1期

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