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On the Catalyzing Effect of Randomness on the Per-Flow Throughput in Wireless Networks

Performance 2013-07-30 v1

Abstract

This paper investigates the throughput capacity of a flow crossing a multi-hop wireless network, whose geometry is characterized by general randomness laws including Uniform, Poisson, Heavy-Tailed distributions for both the nodes' densities and the number of hops. The key contribution is to demonstrate \textit{how} the \textit{per-flow throughput} depends on the distribution of 1) the number of nodes NjN_j inside hops' interference sets, 2) the number of hops KK, and 3) the degree of spatial correlations. The randomness in both NjN_j's and KK is advantageous, i.e., it can yield larger scalings (as large as Θ(n)\Theta(n)) than in non-random settings. An interesting consequence is that the per-flow capacity can exhibit the opposite behavior to the network capacity, which was shown to suffer from a logarithmic decrease in the presence of randomness. In turn, spatial correlations along the end-to-end path are detrimental by a logarithmic term.

Keywords

Cite

@article{arxiv.1307.7271,
  title  = {On the Catalyzing Effect of Randomness on the Per-Flow Throughput in Wireless Networks},
  author = {Florin Ciucu and Jens Schmitt},
  journal= {arXiv preprint arXiv:1307.7271},
  year   = {2013}
}