Title :
Performance of generalized multicarrier DS-CDMA using various chip waveforms
Author :
Yang, Lie-Liang ; Hanzo, Lajos
Author_Institution :
Dept. of Electron. & Comput. Sci., Univ. of Southampton, Highfield Southampton, UK
fDate :
5/1/2003 12:00:00 AM
Abstract :
We extend our investigation of generalized multicarrier direct-sequence code-division multiple access by considering two additional types of chip waveforms, namely, the time-domain half-sine and raised-cosine chip waveforms, in addition to the rectangular chip waveform. A range of closed-form equations are provided for quantifying the effect of both the multipath interference and the multiuser interference, when using partially overlapping subcarriers. These closed-form formulas allow us to evaluate the bit-error rate performance of arbitrary code-division multiple access schemes using overlapping subbands with the aid of the standard Gaussian approximation.
Keywords :
Gaussian processes; approximation theory; code division multiple access; error statistics; fading channels; multipath channels; multiuser channels; radiofrequency interference; spread spectrum communication; BER performance; Gaussian approximation; bit-error rate performance; closed-form equations; direct-sequence code-division multiple access; frequency-selective fading; generalized multicarrier DS-CDMA; multipath interference; multiuser interference; overlapping subbands; partially overlapping subcarriers; rectangular chip waveform; spreading sequences; time-domain half-sine chip waveform; time-domain raised-cosine chip waveform; AWGN; Bit error rate; Direct-sequence code-division multiple access; Equations; Fading; Frequency; Gaussian approximation; Interference; Multiaccess communication; Signal processing;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2003.811385
