Title :
Joint receiving scheme of RAKE combining and Viterbi equalization for low spreading factor wideband DS-CDMA systems
Author :
Chen, Yu ; Xu, Changlong ; Chunming Zhao ; You, Xiaohu ; Park, Woogoo
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China
Abstract :
A joint receiving scheme of RAKE combining and soft-output Viterbi equalization for low spreading factor wideband DS-CDMA systems is proposed in this paper. The equalization technique based on soft-output Viterbi algorithm (SOVA) is applied to symbol sequences after RAKE combining to effectively eliminate the multi-path interference (MPl) and inter-symbol interference (ISI) during transmission of high rate data in wideband DS-CDMA systems, which provides significant improvement over conventional RAKE receiver.
Keywords :
broadband networks; code division multiple access; fading channels; intersymbol interference; multipath channels; radio receivers; radiofrequency interference; spread spectrum communication; RAKE combining; RAKE receiver; Viterbi equalization; intersymbol interference; joint receiving scheme; multipath interference; soft-output Viterbi algorithm; spreading factor; symbol sequences; wideband DS-CDMA systems; Diversity reception; Fading; Interference elimination; Intersymbol interference; Mobile communication; Multiaccess communication; Multipath channels; Signal processing; Viterbi algorithm; Wideband;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1260304
