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Application of algorithms for DOA estimation and beamforming to infrared photodiode arrays

: Iversen, K.; Wolf, M.; Mampel, D.; Schubert, H.; Schmidt, C.


IEEE Signal Processing Society:
IEEE International Conference on Acoustics, Speech, and Signal Processing 1997. Proceedings. Vol.5 : April 21-24, 1997, Munich, Germany
Los Alamitos, Calif.: IEEE Computer Society Press, 1997
International Conference on Acoustics, Speech, and Signal Processing (ICASSP) <22, 1997, München>
Conference Paper
Fraunhofer HHI ()
access protocols; array signal processing; arrays; data communication; direction-of-arrival estimation; optical communication; optical information processing; optical transmitters; photodiodes; time division multiple access; doa estimation; beamforming; infrared photodiode arrays; large cells; low user mobility; transmitter technique; direction of arrival estimation; time division multiple acces; tdma; spatial division multiple access; sdma systems; wireless data communication

We present a novel infrared communication system for large cells and low user mobility. The proposed transmitter technique allows nearly perfect direction-of-arrival (DOA) estimation in time division multiple access (TDMA) environments only with three photodiodes. Using a photodiode array we show that known algorithms for DOA-estimation can be applied in spatial division multiple access (SDMA) systems.