Title :
A generalized array manifold model for local scattering in wireless communications
Author :
Asztély, David ; Ottersten, Björn ; Swindlehurst, A. Lee
Author_Institution :
Dept. of Signals, Sensors & Syst., R. Inst. of Technol., Stockholm, Sweden
Abstract :
In wireless communication scenarios, local scatterers in the vicinity of the mobile sources cause angular spreading. As a result, the spatial signatures will not belong to the conventional array manifold parameterized by direction of arrival (DOA) alone. A parameterized model for spatial signatures applicable in scenarios with local scattering is presented. Several algorithms that exploit this model are proposed, and the performance of signal waveform estimators using the model is investigated via simulations. It is demonstrated that considerable gain may result as compared with using the conventional plane wave model
Keywords :
array signal processing; cellular radio; direction-of-arrival estimation; electromagnetic wave scattering; land mobile radio; linear antenna arrays; multipath channels; radiowave propagation; DOA; algorithms; angular spreading; cellular radio; direction of arrival; generalized array manifold model; local scattering; mobile sources; multipath propagation; parameterized model; plane wave model; signal waveform estimators performance; simulations; spatial signatures; uniform linear array; wireless communications; Antenna arrays; Base stations; Direction of arrival estimation; Fading; Interference; Manifolds; Scattering parameters; Sensor systems; Vectors; Wireless communication;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.604828
