Performance analysis of topology-unaware TDMA MAC schemes for ad hoc networks with topology control

Authors:
Konstantinos Oikonomou;Nikos Pronios;Ioannis Stavrakakis
Affiliations:
INTRCOM S.A., Emerging Technologies and Markets Department, 19.5Km Markopoulou Avenue, Paiania, Athens 190 02, Greece;INTRCOM S.A., Emerging Technologies and Markets Department, 19.5Km Markopoulou Avenue, Paiania, Athens 190 02, Greece and INTRCOM S.A., Emerging Technologies and Markets Department, 19.5Km Markopo ...;Department of Informatics and Telecommunications, University of Athens, Panepistimiopolis, Ilissia, Athens 157 84, Greece
Venue:
Computer Communications
Year:
2005

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Abstract

Traditional omni-directional antennas result in increased mutliuser interference and are known to limit the performance of Medium Access Control (MAC) protocols for ad hoc networks. Topology control is the capability of a node to control the set of neighbor nodes. In this paper, the impact of using smart antennas and/or power control for topology control is investigated and the performance of TDMA MAC schemes with common frame, for which the assignment of time slots to a node is not aware of the time slots assigned to the neighbor nodes (topology-unaware), is studied. A comparison based on analytical models reveals the advantages of topology control, as well as its dependence on the mobility of the nodes and its resolution. Simulation results support the claims and the expectations of the analysis and show how the performance under topology control can be increased and how mobility affects it.