Title :
RS-CDMA: a quasi-synchronous CDMA scheme to support uplink operation of mobile communication
Author :
Wu, Y. ; Darnell, M.
Author_Institution :
Sch. of Electron. & Electr. Eng., Leeds Univ., UK
Abstract :
A despreading scheme employing inverse filtering is introduced to exploit the frequency diversity of a multipath signal in such a way that the path with the strongest power is enhanced while the others are cancelled almost completely. Based on this scheme, a quasi-synchronous CDMA system, termed rotated spectrum code division multiple access (RS-CDMA), is proposed as an alternative to the previously proposed CTDMA to support uplink operation of mobile communications with good performance as well as high spectrum efficiency. The principle and simulation results of the performance are given
Keywords :
cellular radio; code division multiple access; crosstalk; diversity reception; filtering theory; interference suppression; inverse problems; land mobile radio; multipath channels; radio links; spread spectrum communication; telecommunication channels; AWGN; RS-CDMA; cellular radio; crosstalk suppression; frequency diversity; interuser interference; mobile communication; multipath signal; performance; quasi-synchronous CDMA; rotated spectrum code division multiple access; simulation results; spectrum efficiency; uplink operation; AWGN; Code division multiplexing; Delay; Frequency diversity; Information filtering; Information filters; Information systems; Maximum likelihood detection; Mobile communication; Multiaccess communication;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.638404
