Title :
A study on the performance analysis of error control algorithms in digital cellular DS/CDMA systems
Author :
LEE, Ill-Woo ; KIM, Tae-Gue ; Cho, Dong-Ho ; Sone, Chang-Soo ; Lee, Hun
Author_Institution :
Dept. of Comput. Eng., Kyung Hee Univ., Seoul, South Korea
Abstract :
The average error-rate characteristics are investigated as the number of users increases in digital cellular DS/CDMA (direct sequence/code division multiple access) systems. Then, the performances of various error control schemes applied to the data service of digital cellular DS/CDMA systems are compared and analyzed. That is, the performances of the conventional error control schemes such as go-back-N ARQ (automatic repeat request) and selective-repeat ARQ are analyzed in the circumstance of digital cellular DS/CDMA systems. Also, the improved error control schemes which utilize variable window size and/or variable data packet size are proposed and evaluated in order to improve the performances of conventional error control schemes such as quick-repeat ARQ and WORM ARQ schemes in digital cellular DS/CDMA system environments. According to the simulation results, the performances of the improved scheme with variable window and variable frame size are superior to those of the conventional scheme in view of throughput and delay characteristics due to the robustness to the fading channel impairments
Keywords :
automatic repeat request; cellular radio; code division multiple access; delays; digital radio; error correction codes; error statistics; fading; packet radio networks; time-varying channels; WORM ARQ schemes; automatic repeat request; average error-rate characteristics; data service; delay characteristics; digital cellular DS/CDMA systems; direct sequence/code division multiple access; error control algorithms; fading channel; go-back-N ARQ; performance analysis; quick-repeat ARQ; selective-repeat ARQ; throughput; variable data packet size; variable window size; Automatic repeat request; Computer errors; Error correction; Fading; Frequency division multiaccess; Interference; Mobile communication; Multiaccess communication; Performance analysis; Time division multiple access;
Conference_Titel :
Communications, 1994. ICC '94, SUPERCOMM/ICC '94, Conference Record, 'Serving Humanity Through Communications.' IEEE International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-1825-0
DOI :
10.1109/ICC.1994.368966
