Title :
Combinations of adaptive antennas and adaptive equalizers for mobile communications
Author :
Choy, Faith ; Cherniakov, Mikhail
Author_Institution :
Dept. of Electr. & Comput. Eng., Queensland Univ., Brisbane, Qld., Australia
Abstract :
The problems of multipath fading, intersymbol interference (ISI) and other types of interference in a mobile radio environment can be solved together by using both adaptive antennas and equalizers. The least mean square (LMS) algorithm is employed as the control algorithm for adaptive antennas and equalizers under two different environments. Rayleigh fading interference signals are present in the simulation. The performance of a system is sensitive to its structure and the point where feedback is taken. The optimal structure in these experiments contains an adaptive antenna and an equalizer with a common feedback. The optimal structure provides two degrees of freedom to reach the global maximum signal to interference plus noise ratio (SINR) in the time, and space domains
Keywords :
Rayleigh channels; adaptive antenna arrays; adaptive equalisers; adaptive signal processing; array signal processing; decision feedback equalisers; direction-of-arrival estimation; diversity reception; fading; interference suppression; intersymbol interference; land mobile radio; least mean squares methods; ISI; LMS algorithm; Rayleigh fading; SINR; adaptive antennas; adaptive equalizers; control algorithm; decision feedback equaliser; degrees of freedom; diversity gain; experiments; interference signals; intersymbol interference; least mean square; mobile radio communications; multipath fading; optimal structure; signal to interference plus noise ratio; simulation; space domain; system performance; time domain; Adaptive arrays; Adaptive equalizers; Feedback; Intersymbol interference; Land mobile radio; Least squares approximation; Mobile antennas; Programmable control; Rayleigh channels; Signal to noise ratio;
Conference_Titel :
TENCON '97. IEEE Region 10 Annual Conference. Speech and Image Technologies for Computing and Telecommunications., Proceedings of IEEE
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-7803-4365-4
DOI :
10.1109/TENCON.1997.648253
