Title :
Chip level decision feedback equaliser for CDMA downlink with space-time coding
Author :
Santoso, A. ; Choi, J. ; Lim, C.C. ; Vucetic, B.
Author_Institution :
Sch. of Electr. & Inf. Eng., Univ. of Sydney, NSW, Australia
fDate :
4/1/2004 12:00:00 AM
Abstract :
In most commercial wideband code division multiple access systems, the transmitted signal in the downlink channel is spread by orthogonal codes to accommodate different users. However, frequency selective fading destroys the orthogonality and causes multiple access interference. Application of a chip level decision feedback equaliser with the Alamouti transmit diversity scheme is proposed to restore the orthogonality of the received spreading sequences.
Keywords :
channel coding; code division multiple access; decision feedback equalisers; fading channels; interference suppression; radiofrequency interference; space-time codes; spread spectrum communication; Alamouti transmit diversity scheme; CDMA; DFE; MAI; chip level decision feedback equaliser; downlink channel; frequency selective fading channels; multiple access interference; orthogonal codes; space-time coding; wideband code division multiple access systems;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040246
