Title :
An efficient ARQ scheme using soft output demodulation in Rayleigh fading channel
Author :
Lou, Wei ; Fitz, Michael P.
Author_Institution :
Ohio State Univ., OH, USA
Abstract :
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
Keywords :
Rayleigh channels; automatic repeat request; demodulation; packet radio networks; protocols; trellis coded modulation; Rayleigh fading channel; SNR gain; automatic repeat request; efficient ARQ scheme; pilot-symbol aided channel estimation; rate compatible trellis coded modulation; retransmission protocol; retransmission request strategy; simulation results; soft output demodulation; soft output packet combining; type II hybrid ARQ; variable quality of service; AWGN; Automatic repeat request; Decoding; Demodulation; Error correction; Error correction codes; Fading; Forward error correction; Modulation coding; Throughput;
Conference_Titel :
Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5668-3
DOI :
10.1109/WCNC.1999.796930
