Design and analysis of a TDMA call assignment scheme for cellular networks

Authors:
Hamed Nassar;Hassan Al-Mahdi
Affiliations:
Computer Science Department, Suez Canal University, Ismailia 41522, Egypt;Computer Science Department, Suez Canal University, Ismailia 41522, Egypt
Venue:
Computer Communications
Year:
2009

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Abstract

In this paper, we introduce a TDMA channel assignment scheme suitable for personal communication services (PCS) networks. This scheme, called Handoff TDMA (H-TDMA), assumes three type of traffic: new voice calls, handoff voice calls and data packets, all competing for a finite number of channels. In the present scheme, priority is given to handoff voice calls over data calls, while a number of channels is exclusively dedicated to data calls. The performance of the scheme is analyzed using a Markov chain model. We evaluate major performance metrics such as forced termination probability, blocking probability, and data packets loss probability. The analytical results obtained are validated by simulation and good agreement is obtained.