Title :
Impact of spreading bandwidth and diversity order on the error probability performance of RAKE reception in dense multipath channels
Author :
Win, Moe Z. ; Chrisikos, George ; Sollenberger, Nelson R.
Author_Institution :
Dept. of Wireless Syst. Res., AT&T Bell Labs., Red Bank, NJ, USA
Abstract :
We develop an analytical framework to quantify the effects of the spreading bandwidth on spread spectrum systems operating in dense multipath environments. The focus of the paper is to characterize the symbol error probability (SEP) performance of a RAKE receiver tracking the L strongest multipath components in frequency-selective fading. By transforming the physical RAKE receiver with correlated ordered paths into the domain of a “virtual RAKE” receiver with independent virtual paths, analytical expressions for the SEP are derived in terms of the spreading bandwidth, multipath spread of the channel and the number of combined paths
Keywords :
Gaussian channels; cellular radio; code division multiple access; dispersive channels; diversity reception; error statistics; fading channels; multipath channels; radio receivers; spread spectrum communication; RAKE reception; analytical framework; combined paths; correlated ordered paths; dense multipath channels; diversity order; error probability performance; frequency-selective fading; independent virtual paths; multipath spread; physical RAKE receiver; spread spectrum systems; spreading bandwidth; symbol error probability; Bandwidth; Delay lines; Diversity methods; Diversity reception; Error probability; Fading; Fingers; Multipath channels; RAKE receivers; Spread spectrum communication;
Conference_Titel :
Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5668-3
DOI :
10.1109/WCNC.1999.797000
