Title: Perturbation-minimising frequency assignment to address short term demand fluctuation in cellular network

Authors: Soumen Atta; Priya Ranjan Sinha Mahapatra

Addresses: Department of Computer Science and Engineering, University of Kalyani, Kalyani-741235,West Bengal, India ' Department of Computer Science and Engineering, University of Kalyani, Kalyani-741235,West Bengal, India

Abstract: In cellular network short term demand fluctuation is a very common phenomenon. The demand of any cell may increase or decrease slightly or the system may expand by adding additional cells or the system may shrink if the demands of certain number of cells become zero. In this paper, the perturbation-minimising frequency assignment problem (PMFAP) is considered to address the short term fluctuation in demand vector. PMFAP is a frequency assignment problem in which newly generated demands are satisfied with minimum changes in the already existing frequency assignment keeping all the interference constraints. In this paper, an efficient heuristic algorithm for PMFAP is presented. The efficiency of this algorithm is compared with the existing results from literature. With a slight modification to the proposed algorithm, it can solve the well-known frequency assignment problem (FAP) and its performance is also compared with the existing results using the standard benchmark data sets for FAP.

Keywords: short term demand fluctuation; frequency assignment problem; FAP; PMFAP; cellular network; perturbation; heuristic algorithm.

DOI: 10.1504/IJCNDS.2018.094462

International Journal of Communication Networks and Distributed Systems, 2018 Vol.21 No.3, pp.418 - 443

Received: 24 Feb 2017
Accepted: 29 Jan 2018
Published online: 03 Sep 2018 *

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