A new scheme for distributed channel allocation in cellular networks

  • Authors:

  • P. Venkata Krishna;Sudip Misra;Mohammad S. Obaidat;V. Saritha

  • Affiliations:

  • VIT University, Vellore, India;Indian Institute of technology, Kharagpur, India;Monmouth University, W. Long Branch, NJ;VIT University, Vellore, India

  • Venue:
  • SpringSim '09 Proceedings of the 2009 Spring Simulation Multiconference
  • Year:
  • 2009

Quantified Score

Hi-index 0.00

Visualization

Abstract

We are witnessing these days a rapid growth of mobile users. Therefore, frequency spectrum must be efficiently utilized, as available frequency spectrum is limited. This paper proposes a channel allocation scheme with efficient bandwidth reservation which initially reserves some channels for handoff calls, and later reserves the channels dynamically, based on the user mobility. QoS can be improved further if the channel reservation is made based on the location of the user. We devise here a new algorithm that deals with multiple traffic systems by modifying existing DDCA algorithm [1]. This algorithm reserves more channels for hot cells, few channels for cold cells and reserves channels on an average for the medium cells. Furthermore, we maintain queues for all types of calls. We compute the QoS parameters in terms of the blocking probability of originating calls and the dropping probability of handoff calls. The results indicate that the proposed channel allocation scheme exhibits better performance by considering the above mentioned user mobility, type of cells, and maintaining of the queues for various traffic sources. In addition, it can be observed that the dropping probability can be reduced by using reservation factor dynamically using our approach.