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Titolo:
A STUDY ON THE PERFORMANCE IMPROVEMENTS OF ERROR CONTROL SCHEMES IN DIGITAL CELLULAR DS-CDMA SYSTEMS
Autore:
LEE IW; CHO DH;
Indirizzi:
KYUNG HEE UNVI,DEPT COMP ENGN,1 SEOCHUNRI YONGINKUN 449701 SOUTH KOREA KYUNG HEE UNIV,CTR COMP SEOUL SOUTH KOREA
Titolo Testata:
IEICE transactions on communications
fascicolo: 7, volume: E77B, anno: 1994,
pagine: 883 - 890
SICI:
0916-8516(1994)E77B:7<883:ASOTPI>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Keywords:
DIGITAL CELLULAR DS/CDMA SYSTEM; ARQ SCHEME; FADING CHANNEL; ERROR CONTROL SCHEMES; VARIABLE WINDOW AND FRAME SIZE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
10
Recensione:
Indirizzi per estratti:
Citazione:
I.W. Lee e D.H. Cho, "A STUDY ON THE PERFORMANCE IMPROVEMENTS OF ERROR CONTROL SCHEMES IN DIGITAL CELLULAR DS-CDMA SYSTEMS", IEICE transactions on communications, E77B(7), 1994, pp. 883-890

Abstract

In this paper, the average error-rate characteristics are investigated as the number of users increases in the digital cellular DS/CDMA (Direct Sequence/Code Division Multiple Access) systems. Then, the performances of the 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 asGo-back-N ARQ (Automatic Repeat Request) and Selective-Repeat ARQ areanalyzed in the circumstance of digital cellular DS/CDMA system. Also, the improved error control schemes which utilize the variable windowsize and/or variable data packet size are proposed and evaluated in order to improve the performances of the conventional error control scheme such as Quick-Repeat ARQ and WORM ARQ schemes in the 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 theview of throughput and delay characteristics due to the robustness tothe fading channel impairments.

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Documento generato il 10/07/20 alle ore 19:13:18