A space-time coded OFDM with dual Viterbi decoder

Seog Geun Kang Seog Geun Kang,Chi Chung Ko Chi Chung Ko

doi:10.1109/vetecf.2002.1040732

A space-time coded OFDM with dual Viterbi decoder

Seog Geun Kang Seog Geun Kang, Chi Chung Ko Chi Chung Ko

https://doi.org/10.1109/vetecf.2002.1040732

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Publication Date: Dec 10, 2002

Citations: 8

Affiliation: National University of Singapore

#Space-time Coded Orthogonal Frequency Division Multiplexing #Path Metrics + Show 8 more

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Abstract

In this paper, a space-time coded orthogonal frequency division multiplexing (STC-OFDM) scheme with dual Viterbi decoder is proposed and analyzed. In this scheme, two independent half-rate OFDM symbols are generated after convolutional coding. A dual Viterbi decoder is used for the independent decoding of the recovered sequence, and their path metrics are compared. Accordingly, the recovered binary data is a combination of the sequences which have larger path metrics. The proposed STC-OFDM scheme has better performance than the conventional one for all signal-to-noise ratios.

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