Title :
Capacity enhancement using an ARQ scheme in a voice/data DS-CDMA system
Author :
Lee, Chiho ; Kim, Kiseon
Author_Institution :
Dept. of Inf. & Commun., K-JIST, Kwangju, South Korea
fDate :
2/19/1998 12:00:00 AM
Abstract :
ARQ schemes are investigated to increase the system capacity in an IS-95 type DS-CDMA system, basically to support two kinds of services: a typical voice and a data user. The authors compare the number of voice and data users for different kinds of Hamming codes in a multicell environment. The results show that the optimum Hamming code for maximising the data user capacity under IS-95 type environments is the (255, 247) code, which increases the data user capacity so that it is almost twice the capacity when not using an ARQ scheme
Keywords :
Hamming codes; automatic repeat request; cellular radio; channel capacity; code division multiple access; data communication; digital radio; error statistics; voice communication; (255, 247) code; ARQ scheme; BER; IS-95 type; bit error rate; capacity enhancement; data user capacity; multicell environment; optimum Hamming codes; voice users; voice/data DS-CDMA system;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980147
