Power level selection schemes to improve throughput and stability of slotted ALOHA under heavy load

Authors:
Jahangir H. Sarker;Mahbub Hassan;Seppo J. Halme
Affiliations:
Communications Laboratory, Helsinki University of Technology, P.O. Box 2300, Fin-02015 Hut, Finland;School of Computer Science and Engineering, University of New South Wales, Sydney 2052, Australia;Communications Laboratory, Helsinki University of Technology, P.O. Box 2300, Fin-02015 Hut, Finland
Venue:
Computer Communications
Year:
2002

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Abstract

We propose and analyse three different power selection schemes for slotted ALOHA random access protocol operating under multiple power levels. Through analysis and numerical examples we demonstrate that these schemes can significantly improve the performance of slotted ALOHA, in terms of throughput and stability, under heavy load. The proposed schemes are truly distributive in nature and can be easily implemented in wireless access systems without requiring any centralised control.