Title :
Throughput analysis of selective repeat ARQ combined with adaptive modulation for fading channels
Author :
Yun, J. ; Jeong, W. ; Kavehrad, M.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
We mainly investigate how a selective-repeat automatic repeat request (SR-ARQ) scheme works when it is used with an adaptive modulation system (AMS). Simple analytical expressions for the throughput performance of the SR-ARQ/AMS are presented. We obtain the throughput performance of a SR-ARQ/AMS for various fading channels. We also consider channel estimation errors for the throughput analysis and compare the throughput performance with that when perfect channel estimation is assumed. Numerical results from the analysis show that the throughput performance of a SR-ARQ/AMS outperforms that of a conventional SR-ARQ when used with a fixed modulation system.
Keywords :
adaptive modulation; automatic repeat request; channel estimation; error analysis; fading channels; feedback; noise; SR-ARQ; SR-ARQ/AMS; adaptive modulation; channel estimation errors; fading channels; fixed modulation system; noiseless feedback; noisy feedback; perfect channel estimation; selective repeat ARQ; selective-repeat automatic repeat request; throughput analysis; throughput performance; Adaptive systems; Automatic repeat request; Bit error rate; Channel estimation; Fading; Forward error correction; Performance analysis; Quadrature phase shift keying; Throughput; Transmitters;
Conference_Titel :
MILCOM 2002. Proceedings
Print_ISBN :
0-7803-7625-0
DOI :
10.1109/MILCOM.2002.1180532
