Title :
A fixed-assignment-FDMA/multicarrier-CDMA hybrid system for statistical multiplexing
Author :
Yeung, C.K. ; Wei, Victor K W
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Abstract :
We propose a hybrid system comprising of fixed-assignment FDMA and multi-carrier (MC) CDMA for supporting statistical multiplexing in a wireless multiple-access environment. The FDMA portion is used to support minimum fixed transmission rate requirements, and the CDMA portion is used to support the variable transmission rate requirements. This system fully utilizes the efficiency of FDMA to provide fixed-rate access and of multi-carrier CDMA to provide shared, and possibly non-contiguous bandwidth. We show that the total number of users that can be accommodated, while maintaining low blocking rate, is increased over a benchmark system
Keywords :
asynchronous transfer mode; channel capacity; code division multiple access; frequency division multiple access; ATM; benchmark system; fixed-assignment-FDMA; hybrid system; low blocking rate; minimum fixed transmission rate; multicarrier-CDMA; noncontiguous bandwidth; statistical multiplexing; variable transmission rate; wireless multiple-access environment; Asynchronous transfer mode; Bandwidth; Frequency division multiaccess; Multiaccess communication; Multicarrier code division multiple access; Optical fiber networks; Resource management; TV; Videoconference; WDM networks;
Conference_Titel :
Universal Personal Communications. 1995. Record., 1995 Fourth IEEE International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-7803-2955-4
DOI :
10.1109/ICUPC.1995.497062
