TY - GEN
T1 - Beamforming for efficient interference suppression in a mobile communication environment
AU - Lee, Won Cheol
AU - Unnikrishna Pillai, S.
N1 - Funding Information:
*This research work was supported by the Office of Naval Research under contract N00014-89-J-1512 P-5.
Publisher Copyright:
© 1996 IEEE
PY - 1995
Y1 - 1995
N2 - An important problem in a multi-user mobile communication scenario is to provide adequate suppression of interfering signals at each receiver. This can be effectively achieved in two steps by using a multi sensor array at the transmitter and the receiver. First, the array at the transmitter is used to form a main beam along the desired receiver direction under the constraint that the total transmitted power along the undesired receiver directions is minimized. Because of the large number of receivers present in the scene, exact null placement will not be possible. However, each receiver also forms a beam under similar constraints, and the combined effect of these beams will be shown to result in adequate interference suppression. The desired weight vectors in each case depend on a set of intermediate parameters that can be determined as the least square solution of an over determined system of equations.
AB - An important problem in a multi-user mobile communication scenario is to provide adequate suppression of interfering signals at each receiver. This can be effectively achieved in two steps by using a multi sensor array at the transmitter and the receiver. First, the array at the transmitter is used to form a main beam along the desired receiver direction under the constraint that the total transmitted power along the undesired receiver directions is minimized. Because of the large number of receivers present in the scene, exact null placement will not be possible. However, each receiver also forms a beam under similar constraints, and the combined effect of these beams will be shown to result in adequate interference suppression. The desired weight vectors in each case depend on a set of intermediate parameters that can be determined as the least square solution of an over determined system of equations.
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U2 - 10.1109/ACSSC.1995.540805
DO - 10.1109/ACSSC.1995.540805
M3 - Conference contribution
AN - SCOPUS:0005498218
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 771
EP - 775
BT - Conference Record of the 29th Asilomar Conference on Signals, Systems and Computers, ACSSC 1995
A2 - Singh, Avtar
PB - IEEE Computer Society
T2 - 29th Asilomar Conference on Signals, Systems and Computers, ACSSC 1995
Y2 - 30 October 1995 through 1 November 1995
ER -