TY - GEN
T1 - Channel equalization in the presence of strong interference sources
AU - Tabrikian, Joseph
AU - Nehorai, Arye
N1 - Publisher Copyright:
© 2002 IEEE.
PY - 2002/1/1
Y1 - 2002/1/1
N2 - Space-time channel estimation is essential for communication systems which separate sources in the space domain in addition to time/frequency/code domains. In this paper, we first develop a Maximum Likelihood (ML) estimator for the spatial channel transfer function in the presence of strong interference sources, for 3 different channel scenarios: no multipath, locally scattered multipath, and general multipath case. As expected, the ML estimator, which assumes planar wavefield for the signal, provides superior performance over the ML solution for the general multipath case. In order to maintain the robustness to the scenario, an algorithm for scenario/model determination is developed, and its performance is evaluated via simulations.
AB - Space-time channel estimation is essential for communication systems which separate sources in the space domain in addition to time/frequency/code domains. In this paper, we first develop a Maximum Likelihood (ML) estimator for the spatial channel transfer function in the presence of strong interference sources, for 3 different channel scenarios: no multipath, locally scattered multipath, and general multipath case. As expected, the ML estimator, which assumes planar wavefield for the signal, provides superior performance over the ML solution for the general multipath case. In order to maintain the robustness to the scenario, an algorithm for scenario/model determination is developed, and its performance is evaluated via simulations.
UR - http://www.scopus.com/inward/record.url?scp=84949233131&partnerID=8YFLogxK
U2 - 10.1109/SAM.2002.1191050
DO - 10.1109/SAM.2002.1191050
M3 - Conference contribution
AN - SCOPUS:84949233131
T3 - Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
SP - 308
EP - 312
BT - 2002 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAME 2002
PB - Institute of Electrical and Electronics Engineers
T2 - IEEE Sensor Array and Multichannel Signal Processing Workshop, SAME 2002
Y2 - 4 August 2002 through 6 August 2002
ER -