Title: Optimal channel allocation algorithm with efficient channel reservation for cellular networks

Authors: P. Venkata Krishna, N.Ch.S.N. Iyengar

Addresses: School of Computing Sciences, VIT University, Vellore, Tamilnadu 632014, India. ' School of Computing Sciences, VIT University, Vellore, Tamilnadu 632014, India

Abstract: Today, there is a rapid growth of mobile users. As the available frequency spectrum is limited, it must be efficiently utilised. This paper proposes a dynamic channel allocation scheme with efficient channel reservation for handoff calls. The proposed algorithm deals with both originating calls and handoff calls. In the proposed algorithm, we reserve some channels for handoff calls. Later, it increments or decrements, the reserved channels dynamically based on the traffic. Quality of Service (QoS) may be improved further by reserving the channels for handoff calls based on the user mobility and type of cell. The reservation factor, which varies the number of reserved channels, is based on both the blocking probability and the dropping probability. The results indicate clearly that the proposed channel allocation scheme exhibits better performance by considering the above said user mobility and type of cells. Also, it reduces the call dropping rate than the existing channel allocation schemes.

Keywords: channel allocation; quality of service; QoS; originating calls; handoffs; blocking probability; dropping probability; reservation factor; uniform distribution; non-uniform distribution; channel reservation; cellular networks; mobile networks.

DOI: 10.1504/IJCNDS.2008.017203

International Journal of Communication Networks and Distributed Systems, 2008 Vol.1 No.1, pp.33 - 51

Published online: 18 Feb 2008 *

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