NDLI: Erasure-coding based utility routing in multi-hop wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Mingming Lu Jie Wu
Copyright Year	2009
Description	Author affiliation: School of Information Science and Engineering, Central South University, China (Mingming Lu) \|\| Department of Computer and Information Sciences, Temple University, USA (Jie Wu)
Abstract	Recently, erasure coding has become widely used to compensate for the low packet delivery ratio of multi-hop wireless networks. Most existing works assume that the number of redundant erasure-coded packets is unlimited for a message. In this paper, we relax this assumption and integrate the packet quantity into a routing problem in order to achieve a good balance between energy cost and reliability (packet delivery ratio). In doing so, we encounter two major challenges in regards to our new routing problem: one is determining the optimal quantity of redundant packets and the other is determining the optimal routing path.We introduce a benefit value to reflect the trade-off between cost and reliability, and design a single metric (expected utility) by integrating benefit value, cost, and reliability. Based on the expected utility metric, we explore the optimality in both path coding and source coding models. In the path coding model, we design an optimal algorithm, and in the source coding model we propose a heuristic solution. Results from extensive simulations on our custom simulator verify our claims.
Starting Page	168
Ending Page	177
File Size	3586528
Page Count	10
File Format	PDF
ISBN	9781424451135
DOI	10.1109/MOBHOC.2009.5337001
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Costs Energy cost Source coding reliability Routing utility erasure coding Information science routing Wireless networks Utility theory Spread spectrum communication multi-hop wireless networks Mathematical model Telecommunication network reliability
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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