Perturbation-minimising frequency assignment to address short term demand fluctuation in cellular network. (2018)

• Record Type: Journal Article
• Authors: Atta, Soumen; Mahapatra, Priya Ranjan Sinha
• Is Part Of: International journal of communication networks and distributed systems. Volume 21:Number 3(2018)
• Page Start: 418
• Page End: 443
• Publication Date: 2018
• Subjects: short term demand fluctuation -- frequency assignment problem -- FAP -- PMFAP -- cellular network -- perturbation -- heuristic algorithm; Computer networks -- Periodicals; Telecommunication systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; 004.6
• Languages: English
• ISSNs: 1754-3916

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.