An adaptive coding scheme for mobile radio systems

Author

Deng, Robert H. ; Zhou, Hong

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

fYear

1992

fDate

10-13 May 1992

Firstpage

906

Abstract

An adaptive error-control coding scheme for binary digital FM mobile radio transmission is proposed. The scheme uses code combining through packet retransmissions. The number of transmissions of a packet is proportional to the channel fading/noise levels, which is in contrast to time diversity techniques where a fixed number of repetitions of a data packet is performed even in the absence of channel errors. Furthermore, the receiver uses received signal envelopes as channel state information which significantly improves the throughput and bit error rate (BER) performance. Performance of the proposed scheme is analyzed for Rayleigh fading channels with additive white Gaussian noise (AWGN), cochannel interference, and random FM noise

Keywords

digital radio systems; encoding; error correction codes; fading; mobile radio systems; pulse frequency modulation; radiofrequency interference; telecommunication channels; AWGN; BER performance; Rayleigh fading channels; additive white Gaussian noise; binary digital FM mobile radio transmission; bit error rate; channel fading/noise levels; channel state information; cochannel interference; code combining; number of transmissions; packet retransmissions; random FM noise; received signal envelopes; throughput; AWGN; Adaptive coding; Adaptive systems; Additive white noise; Bit error rate; Channel state information; Diversity reception; Fading; Land mobile radio; Noise level;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1992, IEEE 42nd

Conference_Location

Denver, CO

ISSN

1090-3038

Print_ISBN

0-7803-0673-2

Type

conf

DOI

10.1109/VETEC.1992.245280

Filename

245280