Title :
Performance evaluation of an oversampled RAKE receiver
Author :
Sehier, P. ; Brelivet, P.
Author_Institution :
Alcatel Telspace, Nanterre, France
Abstract :
The adaptive RAKE receiver can be used in spread spectrum systems to combine the separate signal energies received due to multipath propagation effects. This paper presents an analytical performance evaluation of the average BER of an over-sampled RAKE receiver on a Rayleigh fading channel, and a comparison with asynchronous architecture. It is shown that over-sampling achieves a significant BER performance improvement. The channel estimator architecture of the over-sampled receiver is also presented.<>
Keywords :
Rayleigh channels; adaptive signal detection; coding errors; diversity reception; error statistics; fading; interference suppression; multipath channels; pseudonoise codes; radio receivers; radiowave propagation; signal sampling; spread spectrum communication; Rayleigh fading channel; adaptive RAKE receiver; asynchronous architecture; average BER; channel estimator architecture; coding; coherent detection; direct sequence spread spectrum; diversity; multipath propagation effects; oversampled RAKE receiver; performance evaluation; signal energies; spread spectrum systems; Bandwidth; Bit error rate; Fading; Filters; Multipath channels; Performance analysis; Quadrature phase shift keying; RAKE receivers; Signal processing; Spread spectrum communication;
Conference_Titel :
Military Communications Conference, 1994. MILCOM '94. Conference Record, 1994 IEEE
Conference_Location :
Fort Monmouth, NJ, USA
Print_ISBN :
0-7803-1828-5
DOI :
10.1109/MILCOM.1994.474007
