4th International ICST Conference on Wireless Internet

Research Article

HxH: A Hop-by-Hop Transport Protocol for Multi-Hop Wireless Networks

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  • @INPROCEEDINGS{10.4108/ICST.WICON2008.4806,
        author={Daniel Scofield and Lei Wang and Daniel Zappala},
        title={HxH: A Hop-by-Hop Transport Protocol for Multi-Hop Wireless Networks},
        proceedings={4th International ICST Conference on Wireless Internet},
        publisher={ICST},
        proceedings_a={WICON},
        year={2010},
        month={5},
        keywords={},
        doi={10.4108/ICST.WICON2008.4806}
    }
    
  • Daniel Scofield
    Lei Wang
    Daniel Zappala
    Year: 2010
    HxH: A Hop-by-Hop Transport Protocol for Multi-Hop Wireless Networks
    WICON
    ICST
    DOI: 10.4108/ICST.WICON2008.4806
Daniel Scofield1,*, Lei Wang1,*, Daniel Zappala1,*
  • 1: Computer Science Department, Brigham Young University
*Contact email: danscofield@byu.net, lei@cs.byu.edu, zappala@cs.byu.edu

Abstract

TCP can perform poorly in multi-hop wireless networks due to problems that arise with contention and mobility. Endto- end protocols are at an inherent disadvantage in trying to solve these problems because their feedback loop operates over multiple wireless hops, which makes it difficult to diagnose problems that occur several hops away and hinders their ability to adapt to changing network conditions. In this paper, we design HxH, a hop-by-hop transport protocol that uses credit-based congestion control and reverse ACKs to solve many of the problems observed with TCP. We use a simulation study to demonstrate that our hop-by-hop approach allows HxH to respond quickly to changing network conditions and to exploit the unique characteristics of wireless networks to reduce overhead. We show that HxH greatly increases throughput and improves fairness, as compared to several end-to-end protocols, in both mesh and mobile ad hoc networks.