TCP Performance in Wireless multi-hop Networks

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Introduction

  • Early research showed TCP suffers poor Performance in wireless networks because of packet losses and corruption caused by wireless inducted errors
  • Further studies searched for mechanism to improve TCP performance in cellular wireless systems
  • Other researches investigated other network problems that negativly affect TCP performance, such as bandwidth asymmetry and large round trip times, which are prevalent in satelite networks
  • During the presentaition we adress another network charackteristic that impacts TCP performance, which is common in mobile ad hoc networks: link failures due to mobility
  • First present performance analysis of standart TCP over mobile ad hoc networks
  • Then present analysis of the use of explicit notification techniques to counter the affects of link failures

    Simulation Environment and Methodology

    Performance Metric

    Measurement of TCP-Reno Throughput

    Mobility Induced Behaviours

    TCP Performance Using Explicit Feedback

    Split-TCP

    Conclusion

    References