Title :
Performance of DS-SSMA systems with differential phase detection on Rician channels
Author_Institution :
Dept. of Telecommun. Eng., Australian Nat. Univ., Canberra, ACT, Australia
Abstract :
We estimate the average bit-error probability (BEP) of a direct-sequence spread-spectrum multiple-access (DS-SSMA) system using MDPSK and differential phase detection on Rician channels. The formulas derived are suitable for various types of signature sequences and chip waveforms. The numerical results are presented for DS-SSMA using BDPSK and QDPSK with random signature sequences and three different chip waveforms: the rectangular, the cosine and the root Nyquist filtering (RNF) with a roll-off rate, β=0.4. The results show that the performance of a DS-SSMA system with complex random signature sequences is superior to a system using binary random signature sequences
Keywords :
Rician channels; demodulation; differential phase shift keying; error statistics; filtering theory; multi-access systems; probability; pseudonoise codes; quadrature phase shift keying; spread spectrum communication; BDPSK; DS-SSMA systems; MDPSK; QDPSK; Rician channels; average bit-error probability; binary random signature sequences; chip waveforms; complex random signature sequences; cosine waveform; differential phase detection; direct-sequence spread-spectrum multiple-access; performance; random signature sequences; rectangular waveform; roll-off rate; root Nyquist filtering waveform; Australia; Detectors; Error probability; Gaussian channels; Intersymbol interference; Monte Carlo methods; Multiaccess communication; Phase detection; Rayleigh channels; Rician channels;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1995. PIMRC'95. Wireless: Merging onto the Information Superhighway., Sixth IEEE International Symposium on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-3002-1
DOI :
10.1109/PIMRC.1995.476878
