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Capacity analysis of a TDMA-based slow-frequency-hopped cellular system

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4 Author(s)
Chennakeshu, S. ; Ericsson Inc., Research Triangle Park, NC, USA ; Hassan, A.A. ; Anderson, J.B. ; Gudmundson, B.

Time-division multiple access (TDMA)-based systems have been adopted as the first generation digital cellular standards in North America, Europe, and Japan. The increasing demand for capacity motivates the study of alternate systems and enhancements to the adopted TDMA standards. In particular, CDMA techniques using direct sequence and slow frequency hopping have been suggested. We analyze the capacity of a slow-frequency-hopped TDMA-based cellular system via calculation of the outage probability. Expressions for the outage probability as a function of voice activity, power control, and antenna diversity are provided for mobile-to-base transmission. These expressions are used to evaluate the system capacity (users/MHz/cell) based on simulating mobile locations within 37 hexagonal cells. The sensitivity to power control error, voice activity factor, and soft capacity of the system is investigated

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Vehicular Technology, IEEE Transactions on  (Volume:45 ,  Issue: 3 )