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CISS
2007
IEEE

Data Dissemination in Wireless Broadcast Channels: Network Coding or Cooperation

13 years 10 months ago
Data Dissemination in Wireless Broadcast Channels: Network Coding or Cooperation
—Network coding and cooperative diversity have each extensively been explored in the literature as a means to substantially improve the performance of wireless networks. Yet, little work has been conducted to compare their performance under a common framework. Our goal in this paper is to fill in this gap. Specifically, we consider a single-hop wireless network consisting of a base station and N receivers. We perform an asymptotic analysis, as N → ∞, of the expected delay associated with the broadcasting of a file consisting of K packets. We show that if K is fixed, cooperation outperforms network coding, in the sense that the expected delay is proportional to K (and thus within a constant factor of the optimal delay) in the former case while it grows logarithmically with N in the latter case. On the other hand, if K grows with N at a rate at least as fast as (log N)r , for r > 1, then we show that the average delay of network coding is within a factor less than two of the...
Ivana Stojanovic, Masoud Sharif, David Starobinski
Added 02 Jun 2010
Updated 02 Jun 2010
Type Conference
Year 2007
Where CISS
Authors Ivana Stojanovic, Masoud Sharif, David Starobinski
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