Title :
Cumulant-based adaptive multichannel filtering for wireless communication systems with multipath RF propagation using antenna arrays
Author :
Martone, Massimiliano
Author_Institution :
Watkins-Johnson Co. Telecommun. Group, Gaithersburg, MD, USA
fDate :
5/1/1998 12:00:00 AM
Abstract :
A method based on high-order statistics is proposed to mitigate the performance degradation caused by multipath RF propagation in a mobile radio communication system using a linear antenna array at the base-station receiver. It is shown that an overdetermined system of linear equations (involving only cumulants of the received baseband digitized signal) can be obtained to perform noniterative deconvolution. An efficient adaptive algorithm based on square-root decomposition is proposed to avoid numerical problems when real-time tracking of moving transmitters is needed
Keywords :
adaptive filters; adaptive signal processing; array signal processing; cellular radio; deconvolution; digital radio; direction-of-arrival estimation; higher order statistics; land mobile radio; linear antenna arrays; radio receivers; radio transmitters; radiowave propagation; tracking; adaptive algorithm; base-station receiver; cumulant-based adaptive multichannel filtering; digital cellular systems; high-order statistics; linear antenna array; linear equations; mobile radio communications; moving transmitters; multipath RF propagation; noniterative deconvolution; overdetermined system; performance degradation; real-time tracking; received baseband digitized signal; square-root decomposition; wireless communication systems; Adaptive filters; Antennas and propagation; Degradation; Filtering; Land mobile radio; Linear antenna arrays; Mobile antennas; Radio frequency; Receiving antennas; Statistics;
Journal_Title :
Vehicular Technology, IEEE Transactions on
