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Title: Throughput and delay scaling laws for mobile overlaid wireless networks
Authors: Zhang, Wenjie
Yeo, Chai Kiat
Keywords: DRNTU::Engineering::Computer science and engineering
Issue Date: 2011
Source: Zhang, W., & Yeo, C. K. (2012). Throughput and delay scaling laws for mobile overlaid wireless networks. Journal of Network and Computer Applications, 35(2), 657-667.
Series/Report no.: Journal of network and computer applications
Abstract: In this paper, we study the throughput and delay scaling laws over two coexisting mobile networks. The primary network consists of n randomly distributed primary nodes which can operate as if the secondary network is absent. However, the secondary network with a higher density m=nβ, β>1 is required to adjust its protocol. By considering that both the primary and the secondary networks move according to random walk mobility model, we propose a multi-hop transmission scheme, and show that the secondary network can achieve the same throughput and delay tradeoff scaling law as in stand-alone network Ds(m)=Θ(mλs(m)). Furthermore, for primary network, it is shown that the tradeoff scaling law is given by Dp(n)=Θ(√nlognλp(n)), when the primary node is chosen as relay node. If the relay node is a secondary node, the scaling law is Dp(n)=Θ(√nβlognλp(n)). The novelties of this paper lie in: (i) detailed study of the delay scaling law for the primary network in the complex scenario where both the primary and the secondary networks are mobile; (ii) the impact of buffer delay on the two networks due to the presence of preservation region. We explicitly analyze the buffer delay and obtain an expression as DsrII(m)=Θ(1/√nβ-1αs(m)).
ISSN: 1084-8045
DOI: 10.1016/j.jnca.2011.10.012
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCSE Journal Articles

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