Title :
Optimum antenna topologies and adaptation strategies for SDMA
Author :
Fuhl, Josef ; Cichon, Dieter J. ; Bonek, Ernst
Author_Institution :
Inst. fur Nachrichtentech. und Hochfrequenztech., Tech. Univ. Wien, Austria
Abstract :
We investigate various antenna topologies and synchronization strategies in conjunction with spatial-reference (SR) algorithms for a macrocell base station antenna array. The directions-of-arrival (DOA) and the powers of the incoming: signals are determined by a ray tracing program, which allows for a realistic modeling of the mobile radio channel. Our results show that the performance of any array structure is determined by its aperture and not by its topology. A synchronization scheme based on both the correlation properties and signal-to-noise-and-interference (SNIR) values within the training sequence is found to give optimum performance
Keywords :
adaptive antenna arrays; adaptive signal processing; array signal processing; cellular radio; direction-of-arrival estimation; land mobile radio; multi-access systems; radiofrequency interference; ray tracing; synchronisation; SDMA; SNIR; adaptation strategies; adaptive array; aperture; array structure performance; circular array; correlation properties; directions of arrival; macrocell base station antenna array; mobile radio channel modeling; optimum antenna topologies; optimum performance; ray tracing program; signal to noise and interference; space division multiple access; spatial reference algorithms; square antenna topology; synchronization strategies; training sequence; triangular antenna topology; Adaptive arrays; Antenna arrays; Apertures; Base stations; Land mobile radio; Macrocell networks; Multiaccess communication; Ray tracing; Strontium; Topology;
Conference_Titel :
Global Telecommunications Conference, 1996. GLOBECOM '96. 'Communications: The Key to Global Prosperity
Conference_Location :
London
Print_ISBN :
0-7803-3336-5
DOI :
10.1109/GLOCOM.1996.594428
