Title :
A comparative study of narrowband microcellular speech transmission schemes
Author :
Williams, John E B ; Hanzo, Lajos ; Steele, Raymond ; Cheung, Joseph C S
Author_Institution :
Multiple Access Commun. Ltd., Southampton, UK
fDate :
11/1/1994 12:00:00 AM
Abstract :
Experiments are conducted on a number of mobile radio systems that are suitable for operation in nondispersive microcellular networks. It becomes apparent that the selection of the type of modem and the number of its levels, the choice of speech codec to be used, and whether to deploy a channel codec, depends on the channel signal-to-noise ratio (SNR) and teletraffic demand, if the power consumption of the handheld portable is to be minimized. Following the implications of the authors´ limited number of experiments, they generalize their findings to some of the requirements of an adaptive transceiver that might be deployed in the next generation of mobile radio networks
Keywords :
adaptive systems; cellular radio; cordless telephone systems; land mobile radio; mobile radio; modems; modulation; multi-access systems; packet reservation multiple access; power consumption; speech coding; telephony; transceivers; adaptive transceiver; channel codec; channel signal-to-noise ratio; handheld portable; handportable; modem; narrowband microcellular speech transmission schemes; nondispersive microcellular networks; power consumption; speech codec; teletraffic demand; 3G mobile communication; Forward error correction; Land mobile radio; Multiaccess communication; Narrowband; Next generation networking; Personal communication networks; Signal to noise ratio; Speech codecs; Transceivers;
Journal_Title :
Vehicular Technology, IEEE Transactions on
