Use of TCP decoupling in improving TCP performance over wireless networks

  • Authors:
  • Affiliations:
  • Venue:
  • Wireless Networks - Special issue: Design and modeling in mobile and wireless systsems
  • Year:
  • 2001

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Abstract

We propose using the TCP decoupling approach to improve a TCP connection's goodput over wireless networks. The performance improvement can be analytically shown to be proportional to , where MTU is the maximum transmission unit of participating wireless links and HP_Sz is the size of a packet containing only a TCP/IP header. For example, on a WaveLAN [32] wireless network, where MTU is 1500 bytes and HP_Sz is 40 bytes, the achieved goodput improvement is about 350%. We present experimental results demonstrating that TCP decoupling outperforms TCP reno and TCP SACK. These results confirm the analysis of performance improvements.