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An Analysis of the Interference Problem in Wireless TDMA Networks

Authors:
Anuschka Igel
Reinhard Gotzhein

Keywords: interference problem; reservation; TDMA; neighborhood; wireless network

Abstract:
Communication in wireless networks raises the so-called interference problem, which means that the transfer of a message from some node a to a receiving node b can be disturbed by the overlapping transmission of another node c in interference range of node b. There are several approaches to solve this problem, such as the exclusive reservation of network-wide synchronized time slots in interference range of both sender and receiver, which we formalize and study in this paper. We first show that the interference problem can be solved if each node knows the current communication and interference topology of the network and the transmission reservations of all nodes at any time, and if reservations take place in a coordinated manner. We then analyze how far this global status information can be reduced while preserving the solvability of the interference problem. We apply our findings to evaluate some existing reservation protocols concerning their abilities to solve the interference problem, and identify possible shortcomings.

Pages: 187 to 194

Copyright: Copyright (c) IARIA, 2012

Publication date: June 24, 2012

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-203-5

Location: Venice, Italy

Dates: from June 24, 2012 to June 29, 2012