Differentiating Congestion vs. Random Loss: A Method for Improving TCP Performance Over Wireless Links

Abstract

Recent research has focused on the problems associated with TCP performance in the presence of wireless links and ways to improve its performance. We present an extension to TCP Santa Cruz which improves TCP performance over lossy wireless links. TCP has no mechanism to differentiate random losses on the wireless link from congestion, and therefore treats all losses as congestive. We present a simple method in which our protocol is able to differentiate these random losses, thereby avoiding the rate-halving approach taken by standard TCP whenever any loss is detected. We compare the performance of our protocol against TCP Reno and demonstrate higher throughput and lower end-to-end delay with our approach.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2000
Accession Number
ADA461737

Entities

People

  • Christina Parsa
  • J.J. Garcia-Luna-Aceves

Organizations

  • University of California, Santa Cruz

Tags

DTIC Thesaurus Topics

  • Algorithms
  • Communication Systems
  • Congestion
  • Control Systems
  • Data Transmission
  • Engineering
  • Information Operations
  • Intervals
  • Network Protocols
  • Networks
  • Packet Loss
  • Retransmission
  • Simulations
  • Simulators
  • Throughput
  • Transport Protocols
  • Wireless Communications

Fields of Study

  • Computer science

Readers

  • Computer Networking