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Node Isolation Probability of Wireless Adhoc Networks in Nagakami Fading Channel

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Author(s): A.V. Babu | Mukesh Kumar Singh

Journal: International journal of Computer Networks & Communications
ISSN 0975-2293

Volume: 2;
Issue: 2;
Start page: 21;
Date: 2010;
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Keywords: Connectivity | Lognormal Shadowing | Nakagami Fading | Node Isolation Probability | Poisson Process | Wireless Ad hoc Networks

ABSTRACT
This paper investigates the issue of connectivity of a wireless adhoc network in the presence of channel impairments. We derive analytical expressions for the node isolation probability in an adhoc network in the presence of Nakagami-m fading with superimposed lognormal shadowing. The node isolation probability is the probability that a randomly chosen node is not able to communicate with none of the other nodes in the network. An extensive investigation into the impact of path loss exponent, lognormal shadowing, Nakagamifading severity index, node density, and diversity order on the node isolation probability is conducted. The presented results are beneficial for the practical design of ad hoc networks.
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