DocumentCode :
3443456
Title :
A novel NLMS-ZF data detection approach for WCDMA based HSDPA systems
Author :
Lu, Tai ; Ramakrishnan, Rajalakshmi ; Yang, Rui ; Pietraski, Philip
Author_Institution :
6 Metrotech Center, Polytech. Univ., Brooklyn, NY
fYear :
2008
fDate :
28-30 April 2008
Firstpage :
1
Lastpage :
5
Abstract :
A new normalized least mean square-zero forcing (NLMS-ZF) approach for data detection, based on the NLMS algorithm and using the zero forcing principle, is developed for WCDMA based high speed packet access (HSDPA) systems. The proposed NLMS-ZF data detection approach, which uses channel state information, has lower complexity than the conventional ZF approach. It is also shown to overcome the noise amplification problem, which is a major disadvantage of the ZF approach at low SNRs. Using numerical simulations, the BER performance of NLMS-ZF approach is proven to be better than that of the conventional NLMS based data detection for various signaling and channel scenarios.
Keywords :
3G mobile communication; code division multiple access; computational complexity; error statistics; least mean squares methods; telecommunication channels; BER performance; HSDPA systems; NLMS-ZF data detection; WCDMA systems; channel state information; high speed packet access systems; noise amplification problem; normalized least mean square-zero forcing approach; numerical simulations; wideband code division multiple access; Channel state information; Correlators; Degradation; Equalizers; Fading; Multiaccess communication; Multipath channels; Multiple access interference; RAKE receivers; Signal to noise ratio; HSDPA; NLMS; WCDMA; ZF;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sarnoff Symposium, 2008 IEEE
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-4244-1843-5
Type :
conf
DOI :
10.1109/SARNOF.2008.4520108
Filename :
4520108
Link To Document :
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