Achievable Error Exponents For Two-Way Awgn Channels

2021 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT)（2021）

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摘要

We present achievable error exponent regions for the Two-Way AWGN channel under an expected block power constraint and variable-length coding (VLC). We propose an achievability scheme that allows terminals to cooperate via interaction to detect decoding errors and request re-transmissions. Under this scheme, in certain rate-pair regimes both directions are able to simultaneously attain error exponent pairs larger than the feedback-free point-to-point random coding error exponents(1).

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关键词

achievable error exponent regions,expected block power constraint,variable length coding,achievability scheme,request retransmissions,error exponent pairs,feedback free point-to-point random coding error exponents,two way AWGN channels

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