Pilot interference cancellation for a coherent wireless code div

Details Pilot interference cancellation for a coherent wireless code div Pilot interference cancellation for a coherent wireless code div

1996-08-20

1999-12-28

Ton, Dang

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

375205, H04J 1300

Patent

active

060090898

ABSTRACT:
A Code-Division Multiple Access (CDMA) receiver is disclosed which removes the pilot signal from the received signal. The pilot signal is defined by its multipath parameters (amplitudes, phase shift and delays) and its signature sequence. Since this information is known at the user's receiver terminal (i.e., handset), the pilot signals of the interfering multipath components of the baseband received signal are detected and removed prior to demodulation of the desired multipath component. The pilot signal may be cancelled prior to or following the data accumulation stage.

REFERENCES:
patent: 5513176 (1996-04-01), Dean et al.
patent: 5691974 (1997-11-01), Zehavi et al.
"Multistage detection in asynchronous code-division multiple-access communications" by M.K. Varanasi and B. Aazhang.;IEEE Transactions on communications, vol. 38, No. 3, pp.509-519, Apr. 1990.
"Decorrelation decision-feedback multiuser detector for synchronous code-division multiple-access channel" by A. Duel-Hallen; IEEE Transactions on communications, vol. 41, No. 2, pp.285-290, Feb., 1993.
"Analysis of a Simple Successive Interference Cancellation Scheme in a DC/CDMA System" by P. Patel and J. Holtzman; IEEE Journal on Selected Areas of Communications, vol. 12(5), pp.796-807.

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