Title :
On the Optimal Phase Control in MIMO Systems with Phase Quantization
Author :
Khabbazian, Majid ; Leung, Kin-Kwong ; Safari, Mohammad A.
Author_Institution :
Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada. Email: majidk@ece.ubc.ca
Abstract :
We consider the optimal phase control problem in wireless MIMO systems with quantized phases. We show that the problem is NP-hard when number of receive antennas grows linearly with the number of transmit antennas. For the case where the number of receive antennas is constant, we show that the problem is no longer NP-hard by providing a polynomial time algorithm.
Keywords :
Antenna feeds; Computer science; Feedback; MIMO; Phase control; Polynomials; Quantization; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Communications, 2006. ICC '06. IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
1-4244-0355-3
Electronic_ISBN :
8164-9547
DOI :
10.1109/ICC.2006.255752
