Trade-Off between Cost and Goodput in Wireless: Replacing Transmitters with Coding
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Medard_Trade-off.pdf
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Author(s)
Klein, Thierry
Soljanin, Emina
Barros, João
Kim, MinJi
Medard, Muriel
Date Issued
August 23, 2017
Journal
Mobile Networks and Management
Publisher
Springer-Verlag
Citation
Kim M. et al. "Trade-Off between Cost and Goodput in Wireless: Replacing Transmitters with Coding." Pesch D., Timm-Giel A., Calvo R.A., Wenning BL., and Pentikousis K., editors. Mobile Networks and Management. MONAMI 2013. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 125 (2014): 1-14 © 2013 Institute for Computer Science, Social Informatics and Telecommunications Engineering (ICST)
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Original manuscript
Abstract
We study the cost of improving the goodput, 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.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Research Laboratory of Electronics
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DOI of Published Version
https://doi.org/10.1007/978-3-319-04277-0_1
