Estimation of spectrum requirements for mobile networks with self-similar traffic, handover, and frequency reuse

Authors:
Won Seok Yang;Eun Saem Yang;Hwa J. Kim;Dae K. Kim
Affiliations:
Department of Business Administration, Hannam University, Daejeon, Republic of Korea;(Correspd. Tel.: +82 33 248 2326/ Fax: +82 33 242 2524/ %Mobile: 82 10 3305 5850/ E-mail: yanges@hallym.ac.kr) Department of Computer Engineering, Hallym University, Chuncheon, KangwonDo, Republic ...;Department of Electronics and Computer Engineering, Kangwon National University, Chuncheon, KangwonDo, Republic of Korea;Department of Information Communication and Computer Networks, Hallym College, Chuncheon, KangwonDo, Republic of Korea
Venue:
Mobile Information Systems
Year:
2010

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Abstract

This paper considers self-similarity in data traffic, handover, and frequency reuse to estimate the spectrum requirements of mobile networks. An approximate average cell capacity subject to a delay requirement and self-similar traffic is presented. It is shown that handover traffic can be an additional load. Spectrum requirements are calculated based on carrier demand instead of spectral efficiency, as at least one carrier is necessary to transmit even 1 bit. The cell-split operation is considered under frequency reuse of one. Estimation methods are presented using cell traffic in two cases. First, a procedure is presented that estimates cell traffic from previous networks. Second, cell traffic is assumed to follow probability distributions. Numerical examples demonstrate the impact of self-similarity, handover, and the proportion of cell-split occurrences on the spectrum requirements.