2nd International ICST Conference on Wireless Internet

Research Article

A TCP with guaranteed performance in networks with dynamic congestion and random wireless losses

  • @INPROCEEDINGS{10.1145/1234161.1234170,
        author={Stefan Schmid and Roger  Wattenhofer},
        title={A TCP with guaranteed performance in networks with dynamic congestion and random wireless losses},
        proceedings={2nd International ICST Conference on Wireless Internet},
        publisher={ACM},
        proceedings_a={WICON},
        year={2006},
        month={8},
        keywords={},
        doi={10.1145/1234161.1234170}
    }
    
  • Stefan Schmid
    Roger Wattenhofer
    Year: 2006
    A TCP with guaranteed performance in networks with dynamic congestion and random wireless losses
    WICON
    ACM
    DOI: 10.1145/1234161.1234170
Stefan Schmid1,*, Roger Wattenhofer1,*
  • 1: Computer Engineering and Networks Laboratory, ETH Zurich, CH-8092 Zurich, Switzerland
*Contact email: fschmiste@tik.ee.ethz.ch, wattenhoferg@tik.ee.ethz.ch

Abstract

It is well-known that TCP performs poorly in the presence of packet losses happening for reasons other than Internet congestion. One increasingly important source of such errors are wireless links. In this paper, networks are studied where the congestion---and thus the bandwidth available to a host---varies over time, and where in addition packets are lost at random. First, we propose a network comprising both dynamically varying congestion and random errors. Second, our model is extended with network calculus concepts in order to study bursty changes of congestion. Finally, we present the transfer protocol TCP "Wichita" (TCPW) which achieves a provable worst-case performance in this environment.