Title :
RBF based receivers for DS-CDMA with reduced complexity
Author :
Tanner, R. ; Cruickshank, D.G.M.
Author_Institution :
Dept. of Electron. & Electr. Eng., Edinburgh Univ., UK
Abstract :
This paper presents a Mahalanobis based radial basis function network (RBF) receiver structure with reduced complexity. It is also illustrated, how the RBF receiver could be employed as a multiuser detector. The RBF structure has superior performance over linear receiver structures and is equivalent to MLSD in an AWGN channel. However, a drawback is its complexity in multipath channels. Ideas from pattern recognition are exploited to reduce its complexity for multipath scenarios with little performance loss
Keywords :
AWGN channels; code division multiple access; land mobile radio; multipath channels; multiuser channels; radial basis function networks; radio receivers; signal detection; spread spectrum communication; telecommunication computing; AWGN channel; DS-CDMA; MLSD; RBF based receivers; downlink; linear receiver structures; multipath channels; multiuser detector; pattern recognition; performance; preprocessing; radial basis function network; reduced complexity; AWGN channels; Buildings; Detectors; Maximum likelihood detection; Multiaccess communication; Multipath channels; Multiuser detection; Neural networks; Pattern recognition; Signal processing;
Conference_Titel :
Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on
Conference_Location :
Sun City
Print_ISBN :
0-7803-4281-X
DOI :
10.1109/ISSSTA.1998.723866
