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Mobility-sensitive topology control in mobile ad hoc networks

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2 Author(s)
J. Wu ; Dept. of Comput. Sci. & Eng., Florida Atlantic Univ., Boca Raton, FL, USA ; F. Dai

In most existing localized topology control protocols for mobile ad hoc networks (MANETs), each node selects a few logical neighbors based on location information and uses a small transmission range to cover those logical neighbors. Transmission range reduction conserves energy and bandwidth consumption, while still maintaining network connectivity. However, the majority of these approaches assume a static network without mobility. In a mobile environment network connectivity can be compromised by two types of "bad" location information: inconsistent information, which makes a node select too few logical neighbors, and outdated information, which makes a node use too small a transmission range. In this paper, we first show some issues in existing topology control. Then, we propose a mobility-sensitive topology control method that extends many existing mobility-insensitive protocols. Two mechanisms are introduced: consistent local views that avoid inconsistent information and delay and mobility management that tolerate outdated information. The effectiveness of the proposed approach is confirmed through an extensive simulation study

Published in:

IEEE Transactions on Parallel and Distributed Systems  (Volume:17 ,  Issue: 6 )