Analog-to-digital transition: selecting the optimal cellular radio mix

Author

Benveniste, Mathilde

Author_Institution

AT&T Labs.-Res., Florham Park, NJ, USA

Volume

48

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

1414

Lastpage

1420

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;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.790514

Filename

790514