Title :
A novel time-frequency receiver for unknown fast fading channels
Author :
Razaghi, Peyman ; Khalaj, Babak H.
Author_Institution :
Fac. of Electr. Eng., Sharif Univ. of Technol., Iran
Abstract :
A new approach for data detection in fast fading channels is proposed. By using a combination of Rake receiver and sequential detection for fast fading channels, it is shown that system performance can be improved without prior knowledge of the channel. As will be shown in this paper, by combining spread spectrum signaling and sequential detection it is possible to exploit the time-frequency diversity of fast fading channels in a novel way. It is shown by simulation that combination of sequential detection and Rake receiver can effectively improve system performance, compared with equal gain combining.
Keywords :
code division multiple access; diversity reception; fading channels; multiuser detection; radio receivers; spread spectrum communication; time-frequency analysis; Rake receiver; data detection; fast fading channels; multiuser CDMA system; sequential detection; spread spectrum signaling; time-frequency diversity; Diversity reception; Fading; Multiaccess communication; Multipath channels; Performance gain; RAKE receivers; Signal detection; Spread spectrum communication; System performance; Time frequency analysis;
Conference_Titel :
Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE
Print_ISBN :
0-7803-8344-3
DOI :
10.1109/WCNC.2004.1311786
