Title :
Adaptive MMSE-MRC multiuser detector with mixed phase channel for DS-CDMA system
Author :
Gajbhiye, Mangala R. ; Sathpathy, J.K.
Author_Institution :
Electr. Eng. Dept., Nat. Inst. of Technol., Rourkela, India
Abstract :
Direct-sequence code-division multiple access (DSCDMA) is a popular multiple-access technology for wireless communication. However its performance is limited by multiple-access interference (MAI) and multipath distortion. Adaptive techniques for detection of DS-CDMA signals improves the performance of the CDMA system by reducing interference among users by employing two major types of adaptive technique called least mean squares (LMS) and recursive least square (RLS). In this paper the diversity scheme called maximum ratio combining (MRC) as preprocessor to the adaptive MMSE detector of DS-CDMA system in mixed phase channel is introduced.
Keywords :
code division multiple access; diversity reception; least mean squares methods; multiuser detection; radiocommunication; radiofrequency interference; recursive estimation; spread spectrum communication; DS-CDMA signal detection; DS-CDMA system; DSCDMA; LMS; MAI; RLS; adaptive MMSE detector; adaptive MMSE-MRC multiuser detector; adaptive techniques; direct-sequence code-division multiple access; diversity scheme; least mean squares; maximum ratio combining; mixed phase channel; multipath distortion; multiple-access interference; multiple-access technology; preprocessor; recursive least square; wireless communication; Adaptive systems; Decorrelation; Detectors; Least squares approximation; Multiaccess communication; Multiuser detection; Receivers; Adaptive multi-user detection; DS-CDMA; maximum ratio combining (MRC); mixed phase channel;
Conference_Titel :
Advanced Networks and Telecommunication Systems (ANTS), 2010 IEEE 4th International Symposium on
Conference_Location :
Mumbai
Print_ISBN :
978-1-4244-9852-9
DOI :
10.1109/ANTS.2010.5983505
