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An efficient ARQ scheme using soft output demodulation in Rayleigh fading channel

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2 Author(s)
Wei Lou ; Ohio State Univ., OH, USA ; Fitz, M.P.

An automatic repeat request (ARQ) scheme using rate compatible trellis coded modulation, pilot-symbol aided channel estimation, soft output packet combining, and a retransmission request strategy supporting a variable quality of service within a packet is proposed. Simulation results show that this type II hybrid ARQ has about 3-5 dB SNR gain over its type I ARQ counterpart

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Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE

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