Output MAI distributions of linear MMSE multiuser receivers in DS-CDMA systems

2001 ◽  
Vol 47 (3) ◽  
pp. 1128-1144 ◽  
Author(s):  
Junshan Zhang ◽  
E.K.P. Chong ◽  
D.N.C. Tse
Keyword(s):  
Multiuser Receivers ◽  
Cdma Systems

Throughput analysis of CDMA systems using multiuser receivers

2001 ◽  
Vol 49 (7) ◽  
pp. 1192-1202 ◽  
Author(s):  
Qingchong Liu ◽  
En-Hui Yang ◽  
Zhen Zhang
Keyword(s):  
Throughput Analysis ◽  
Multiuser Receivers ◽  
Cdma Systems

Blind Multiuser Receivers for Chaos Based Communications

2003 ◽  
Vol 13 (08) ◽  
pp. 2353-2359 ◽  
Author(s):  
Francisco Argüello ◽  
Manuel Bugallo ◽  
Juan López
Keyword(s):  
Communication Systems ◽  
Multiple Access ◽  
Good Deal ◽  
Multiple Access Interference ◽  
Detection Techniques ◽  
Multiuser Receivers ◽  
Cdma Systems ◽  
Blind Receivers ◽  
Code Division Multiple ◽  
The Impact

Recently, there has been a good deal of interest in the use of chaotic signals for direct sequence code division multiple access (DS-CDMA) communication systems. The capacity of DS-CDMA systems is interference-limited, and can therefore be increased by techniques that suppress interference. This letter is devoted to the evaluation of the impact of blind multiuser detection techniques on chaos based DS-CDMA systems. Blind receivers can suppress multiple access interference and do not require knowledge of the code sequences and propagation channels of the interference. We demonstrate that, for chaotic sequence-based communications, blind multiuser receivers significantly improve the BER with respect to single-user receivers, and that their use is practically essential with a high number of users.

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