EFFECT OF CHANNEL CODING ON THE EFFICIENCY OF CELLULAR MOBILE RADIO SYSTEMS.

被引:0
|
作者
Goodman, David J. [1 ]
Sundberg, Carl-Erik W. [1 ]
机构
[1] AT&T Bell Lab, Crawford Hill, Lab, Holmdel, NJ, USA, AT&T Bell Lab, Crawford Hill Lab, Holmdel, NJ, USA
来源
IEEE Transactions on Communications | 1985年 / COM-33卷 / 03期
关键词
INFORMATION THEORY - Communication Channels - MATHEMATICAL STATISTICS - RADIO SYSTEMS; MOBILE - Cellular Technology;
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摘要
Error correcting codes have two opposite effects on the efficiency of cellular mobile-radio systems. Although they increase the bandwidth per channel, the codes also make signals more robust and thereby reduce the required distance between users of the same frequency band. This paper reports a mathematical study of the interactions of these two effects in determining the efficiencies of a large number of source-code and channel-code combinations. Within a statistical performance objective the most efficient scheme in this study has an embedded differential pulse code modulation (DPCM) source code and a rate 1/2 channel code that protects 2 bits of each 4 bit DPCM code word.
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页码:288 / 291
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