Title :
The effect of chip waveform on the performance of CDMA systems in multipath, fading, noisy channels
Author :
Anjaria, Rashmin ; Wyrwas, Richard
Author_Institution :
Sch. of Electron., South Australia Univ., The Levels, SA, Australia
Abstract :
The effect of non-ideal chip waveforms on the bit error rate (BER) performance of code division multiple access (CDMA) systems is analyzed. The waveforms considered include sine and raised cosine in addition to the ideal rectangular waveform. The waveforms are assumed to be time-limited to the chip duration and cause no interchip interference. The modulation type is differential phase shift keying (DPSK). The channel is modeled as a discrete set of Rayleigh faded paths, which makes the analysis appropriate for mobile cellular systems as well as indoor wireless communications. The receiver uses a matched filter (for despreading) and is followed by a RAKE type of receiver
Keywords :
cellular radio; code division multiple access; fading; phase shift keying; spread spectrum communication; BER performance; CDMA systems; DPSK; DS-SSMA system; Rayleigh faded paths; bit error rate; chip waveform; differential phase shift keying; ideal rectangular waveform; indoor wireless communications; mobile cellular systems; multipath fading; noisy channels; performance; raised cosine waveforms; sine waveforms; time-limited waveforms; Bit error rate; Differential phase shift keying; Differential quadrature phase shift keying; Interference; Matched filters; Multiaccess communication; Performance analysis; Phase modulation; RAKE receivers; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 1992, IEEE 42nd
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-0673-2
DOI :
10.1109/VETEC.1992.245483
