Title :
Analog-to-digital transition: selecting the optimal cellular radio mix
Author :
Benveniste, Mathilde
Author_Institution :
AT&T Labs.-Res., Florham Park, NJ, USA
fDate :
9/1/1999 12:00:00 AM
Abstract :
The capacity gains from the transition from analog-to-digital time-division multiple-access (TDMA) air-interface technology depend on the number of base-station radios (transceivers) changed from analog to digital. It is possible to have no capacity gains, and even losses, if too many radios are changed over. This paper addresses the problem of finding the optimal radio mix. An analytical model is developed to compute the blocking rate experienced by subscribers in a cell, given the cell´s offered load, the mix of analog and dual-mode subscriber units, and the analog-to-digital split of the radio frequency (RF) channels available to the cell
Keywords :
cellular radio; channel capacity; digital radio; multiuser channels; network interfaces; optimisation; queueing theory; time division multiple access; transceivers; RF channels; TDMA air-interface technology; analog subscriber units; analog-to-digital transition; analytical model; base-station radios; blocking rate; capacity gains; digital cellular telephony; dual-mode subscriber units; losses; offered load; optimal cellular radio mix selection; queueing model; radio frequency channels; time-division multiple-access; transceivers; Analog computers; Analytical models; Capacity planning; Digital communication; Helium; Land mobile radio cellular systems; Radio frequency; Radio transceivers; Telephony; Time division multiple access;
Journal_Title :
Vehicular Technology, IEEE Transactions on
