Title :
A blind adaptive decorrelating detector for CDMA systems
Author :
Ulukus, Sennur ; Yates, Roy D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rutgers Univ., Piscataway, NJ, USA
Abstract :
The decorrelating detector is known to eliminate multiaccess interference given that the signature sequences of the users are linearly independent, at the cost of enhancing the Gaussian receiver noise. In this paper, we present and study the convergence of a blind adaptive decorrelating detector which is based on the observation of the available statistics. The algorithm is iterative and distributed. Only two parameters are needed for the construction of the receiver filter of a user: the user´s signature sequence and the variance of the white Gaussian receiver noise. The computational complexity of the proposed algorithm per iteration is linear in the number of users
Keywords :
Gaussian noise; adaptive filters; code division multiple access; computational complexity; convergence of numerical methods; correlation methods; deterministic algorithms; interference suppression; iterative methods; receivers; sequences; white noise; CDMA systems; Gaussian receiver noise; blind adaptive decorrelating detector; computational complexity; convergence; iterative distributed algorithm; multiaccess interference; receiver filter; signature sequences; statistics; white Gaussian receiver noise; Convergence; Costs; Decorrelation; Detectors; Filters; Gaussian noise; Interference elimination; Iterative algorithms; Multiaccess communication; Statistical distributions;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.638413
