Title :
Performance evaluation methods for DS-CDMA systems with RAKE receivers
Author :
Mazzini, G. ; Tralli, V.
Author_Institution :
Dipartimento di Elettronica Inf. e Sistemistica, Bologna Univ., Italy
Abstract :
Analytical and semianalytical methodologies are presented with the aim of investigating performance of DS-CDMA systems using a RAKE receiver. The system is composed by a fixed number of digital subscribers adopting asynchronous transmission to a single base station. By taking multipath propagation and the exact evaluation of spreading codes correlation into account, the system performance is defined in terms of both mean bit error probability and outage probability. The spreading sequences investigated include some well known two-level sequences and multilevel sequences with complex mapping. The numerical results show a good agreement between the two different methodologies
Keywords :
code division multiple access; coding errors; correlation methods; digital radio; error statistics; land mobile radio; multipath channels; probability; pseudonoise codes; radio receivers; spread spectrum communication; DS-CDMA systems; RAKE receivers; analytical method; asynchronous transmission; base station; complex mapping; digital subscribers; mean bit error probability; multilevel sequences; multipath propagation; outage probability; performance evaluation; semianalytical method; spreading codes correlation; spreading sequences; system performance; two-level sequences; Code division multiaccess; Communication system performance; Correlation; Digital radio; Error analysis; Land mobile radio propagation factors; Multipath channels; Probability; Pseudonoise coded communication; Radio receivers;
Conference_Titel :
Global Telecommunications Conference, 1995. Conference record. Communication Theory Mini-Conference, GLOBECOM '95., IEEE
Print_ISBN :
0-7803-2509-5
DOI :
10.1109/CTMC.1995.502947
