Title :
A modified RAKE receiver for a DS/CDMA cellular mobile system
Author :
Dallas, P.I. ; Iossifides, A.C. ; Pavlidou, F.-N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Aristotle Univ. of Thessaloniki, Greece
Abstract :
In this paper a direct sequence spread-spectrum multiple access communication system is studied for a frequency selective mobile radio channel. The reverse link (mobile to base station) is analysed, assuming Rayleigh fading channel and K asynchronous users, with M orthogonal sequences per user. The analysis is based on the consideration of the quadrature components of the signal and noise. The proposed receiver is a modified RAKE receiver that improves the performance of the system at medium signal to noise ratios (SNR), giving the possibility of applying this system in a high noise cellular mobile radio environment
Keywords :
Rayleigh channels; cellular radio; code division multiple access; fading; land mobile radio; noise; pseudonoise codes; radio receivers; radiofrequency interference; spread spectrum communication; DS/CDMA cellular mobile system; Rayleigh fading channel; SNR; asynchronous users; base station; cellular mobile radio environment; direct sequence spread-spectrum; frequency selective mobile radio channel; modified RAKE receiver; multiple access communication system; noise; orthogonal sequences; quadrature signal components; reverse link; signal to noise ratios; system performance; Base stations; Fading; Frequency; Land mobile radio; Multiaccess communication; Multipath channels; Signal analysis; Signal to noise ratio; Spread spectrum communication; Working environment noise;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1994. Wireless Networks - Catching the Mobile Future., 5th IEEE International Symposium on
Conference_Location :
The Hague
Print_ISBN :
90-5199-193-2
DOI :
10.1109/WNCMF.1994.529486
