Title :
Theoretical analysis for the downlink spectral efficiency of DS/CDMA cellular systems in Rayleigh fading environment
Author :
Sedtheetorn, Pongsatorn
Author_Institution :
Dept. of Electr. Eng. Fac. of Eng., Mahidol Univ., Nakhonpathom
Abstract :
This paper presents an original exact analysis on the downlink spectral efficiency of DS/CDMA cellular systems in Rayleigh fading. We derive a new expression for the probability distribution function of signal to interference plus noise ratio (SINR) which accordingly leads us to propose explicit closed forms of he spectral efficiency and average bit error rate in Rayleigh fading environment. The proposed closed forms are used to accurately investigate the effects of orthogonality, propagational condition, and channel noise on the overall efficiency.
Keywords :
Rayleigh channels; cellular radio; code division multiple access; error statistics; probability; radio links; spectral analysis; spread spectrum communication; DS/CDMA cellular systems; Rayleigh fading environment; bit error rate; downlink spectral efficiency; probability distribution function; signal to interference plus noise ratio; Artificial intelligence; Downlink; Hafnium; Multiaccess communication; Rayleigh channels; DS/CDMA; Rayleigh fading; SINR; bit error probability; spectral efficiency;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2008. ECTI-CON 2008. 5th International Conference on
Conference_Location :
Krabi
Print_ISBN :
978-1-4244-2101-5
Electronic_ISBN :
978-1-4244-2102-2
DOI :
10.1109/ECTICON.2008.4600441
