Title :
Stochastic beamforming via compact antenna arrays
Author :
Alrabadi, Osama N. ; Pedersen, Gert F.
Author_Institution :
Dept. of Electron. Syst., Aalborg Univ., Aalborg, Denmark
Abstract :
The paper investigates the average beamforming (BF) gain of compact antenna arrays when statistical channel knowledge is available. The optimal excitation (precoding vector) and impedance termination that maximize the average BF gain are a compromise between the ones that maximize the array efficiency and the ones that maximize the array distributed directivity. Simulation results using a symmetric uniform circular array (UCA) operating in an indoor clustering environment are provided.
Keywords :
antenna arrays; array signal processing; precoding; UCA; average beamforming gain; compact antenna arrays; impedance termination; indoor clustering environment; optimal excitation; precoding vector; stochastic beamforming; symmetric uniform circular array; Antenna arrays; Array signal processing; Covariance matrix; Eigenvalues and eigenfunctions; Impedance; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349112
