Title :
An adaptive algorithm for antenna array low-rank processing in cellular TDMA base stations
Author :
Martone, Massimiliano
Author_Institution :
Telecommun. Group, Watkins-Johnson Co., Palo Alto, CA, USA
fDate :
5/1/1998 12:00:00 AM
Abstract :
A new adaptive algorithm for blind interference rejection and multipath mitigation is studied and applied to antenna array processing in the reverse channel of a time-division multiple-access (TDMA) cellular communication system. The method is based on higher order statistics (HOS) processing of the baseband vector samples at the antenna array output. The similarity between the cumulant-based solution and the standard multivariable least-squares solution is exploited to derive an efficient adaptive algorithm based on a low-rank processing architecture. The algorithm exhibits good tracking and enhanced identification capability with respect to traditional least-squares methods
Keywords :
adaptive antenna arrays; adaptive signal processing; array signal processing; cellular radio; higher order statistics; interference suppression; least mean squares methods; multipath channels; radiofrequency interference; time division multiple access; tracking; adaptive algorithm; antenna array low-rank processing; baseband vector samples; blind interference rejection; cellular TDMA base stations; cumulant-based solution; higher order statistics; identification; multipath mitigation; multivariable least-squares solution; reverse channel; time-division multiple-access; tracking; Adaptive algorithm; Adaptive arrays; Antenna arrays; Antennas and propagation; Array signal processing; Base stations; Fading; Intersymbol interference; Signal processing algorithms; Time division multiple access;
Journal_Title :
Communications, IEEE Transactions on
