Title: A sighting-aware obstacle mobility model for ad hoc network

Authors: Xiaohong Li; Shasha Zhou; Dong Wang

Addresses: College of Information Science & Engineering, Hunan University, Changsha, China ' Library, Hunan Normal University, Changsha, China ' College of Information Science & Engineering, Hunan University, Changsha, China

Abstract: In this work we present a sighting-aware obstacle mobility model for ad hoc network. In natural or man-made disasters, military activities or healthcare services scenarios, people's line of sight is obstructed by the obstacles. In the proposed mobility model, the nodes of the network move around the obstacles in a natural and realistic way. A recursive procedure is followed by each node according to which every time an obstacle is encountered between the node's current position and the final destination point, the node moves to the obstacle's vertex which makes the path the current shortest path from the source point to the destination point. This process is repeated until the destination is reached. Simulation results show that the proposed model has significant difference with other obstacle mobility models on the network pathway selection. And also the proposed model has different impacts on network topology and routing performance.

Keywords: mobile ad hoc networks; MANETs; mobile networks; mobility models; obstacle mobility; modelling; simulation; line of sight; LOS obstructions; network topology; routing performance; sighting-aware models; emergency management; emergency response.

DOI: 10.1504/IJWMC.2013.056554

International Journal of Wireless and Mobile Computing, 2013 Vol.6 No.4, pp.375 - 383

Received: 18 May 2013
Accepted: 24 Jun 2013

Published online: 16 Oct 2014 *

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