Title :
Effect of overlapping between successive carriers of multicarrier-CDMA on the performance in a multipath fading channel
Author :
Elnoubi, Said M. ; Beheiry, Ahmed Ei
Author_Institution :
Dept. of Electr. Eng., Alexandria Univ., Egypt
Abstract :
In this paper, the effect of overlapping between successive carriers of a multicarrier (MC) code division multiple access (CDMA) system on the performance in a multipath fading channel is investigated. Transmitted data bits are serial to parallel converted to a number of parallel branches. On each branch, each bit is direct-sequence spread-spectrum modulated and transmitted with certain number of carriers. The separation between successive carriers is allowed to vary to achieve various overlapping-percentages. The system is analyzed with a conventional matched filter (MF) receiver. It is shown that for each number of carriers there exists an optimum overlapping-percentage at which the performance of the system is optimized
Keywords :
code division multiple access; fading; matched filters; modulation; multipath channels; receivers; spread spectrum communication; code division multiple access; conventional matched filter receiver; multicarrier-CDMA; multipath fading channel; overlapping-percentages; parallel branches; performance; serial to parallel conversion; successive carriers; transmitted data bits; Additive noise; Equations; Fading; Frequency synchronization; Gaussian noise; Multiaccess communication; Power control; Propagation delay; Statistics;
Conference_Titel :
Universal Personal Communications Record, 1997. Conference Record., 1997 IEEE 6th International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3777-8
DOI :
10.1109/ICUPC.1997.625535
