Mobile Networks and Management. 5th International Conference, MONAMI 2013, Cork, Ireland, September 23-25, 2013, Revised Selected Papers

Research Article

Trade-Off between Cost and Goodput in Wireless: Replacing Transmitters with Coding

Download72 downloads
  • @INPROCEEDINGS{10.1007/978-3-319-04277-0_1,
        author={MinJi Kim and Thierry Klein and Emina Soljanin and Jo\"{a}o Barros and Muriel M\^{e}dard},
        title={Trade-Off between Cost and Goodput in Wireless: Replacing Transmitters with Coding},
        proceedings={Mobile Networks and Management. 5th International Conference, MONAMI 2013, Cork, Ireland, September 23-25, 2013, Revised Selected Papers},
        proceedings_a={MONAMI},
        year={2014},
        month={6},
        keywords={},
        doi={10.1007/978-3-319-04277-0_1}
    }
    
  • MinJi Kim
    Thierry Klein
    Emina Soljanin
    João Barros
    Muriel Médard
    Year: 2014
    Trade-Off between Cost and Goodput in Wireless: Replacing Transmitters with Coding
    MONAMI
    Springer
    DOI: 10.1007/978-3-319-04277-0_1
MinJi Kim1,*, Thierry Klein2,*, Emina Soljanin2,*, João Barros3,*, Muriel Médard1,*
  • 1: MIT
  • 2: Alcatel-Lucent Bell Laboratories
  • 3: University of Porto
*Contact email: minjikim@mit.edu, thierry.klein@alcatel-lucent.com, emina@research.bell-labs.com, jbarros@fe.up.pt, medard@mit.edu

Abstract

We study the cost of improving the , or the useful data rate, to user in a wireless network. We measure the cost in terms of number of base stations, which is highly correlated to the energy cost as well as capital and operational costs of a network provider. We show that increasing the available bandwidth, or throughput, may not necessarily lead to increase in goodput, particularly in lossy wireless networks in which TCP does not perform well. As a result, much of the resources dedicated to the user may not translate to high goodput, resulting in an inefficient use of the network resources. We show that using protocols such as TCP/NC, which are more resilient to erasures and failures in the network, may lead to a goodput commensurate with the throughput dedicated to each user. By increasing goodput, users’ transactions are completed faster; thus, the resources dedicated to these users can be released to serve other requests or transactions. Consequently, we show that translating efficiently throughput to goodput may bring forth better connection to users while reducing the cost for the network providers.