TY - GEN
T1 - Coordinated transmit and receive processing with adaptive multi-stream selection
AU - An, Hong Sun
AU - Mohaisen, Manar
AU - Han, Dong Keol
AU - Chang, Kyung Hi
PY - 2010
Y1 - 2010
N2 - In this paper, we propose an adaptive coordinated Tx-Rx beamforming scheme for inter-user interference cancellation, when a base station (BS) communicates with multiple users that each has multiple receive antennas. The conventional coordinated Tx-Rx beamforming scheme transmits a fixed number of data streams for each user regardless of the instantaneous channel states, that is, all the users, no matter they are with ill-conditioned or well-conditioned channels, have the same number of data streams. However, in the proposed adaptive coordinated Tx-Rx beamforming scheme, we adaptively select the number of streams per user to solve the inefficient problem of the conventional coordinated Tx-Rx beamforming scheme. As a result, the BER performance is improved. Simulation results show that the proposed algorithm outperforms the conventional co-ordinated Tx-Rx beamforming algorithm by 2.5dB at a target BER of 10 -2.
AB - In this paper, we propose an adaptive coordinated Tx-Rx beamforming scheme for inter-user interference cancellation, when a base station (BS) communicates with multiple users that each has multiple receive antennas. The conventional coordinated Tx-Rx beamforming scheme transmits a fixed number of data streams for each user regardless of the instantaneous channel states, that is, all the users, no matter they are with ill-conditioned or well-conditioned channels, have the same number of data streams. However, in the proposed adaptive coordinated Tx-Rx beamforming scheme, we adaptively select the number of streams per user to solve the inefficient problem of the conventional coordinated Tx-Rx beamforming scheme. As a result, the BER performance is improved. Simulation results show that the proposed algorithm outperforms the conventional co-ordinated Tx-Rx beamforming algorithm by 2.5dB at a target BER of 10 -2.
KW - Block diagonalization
KW - Coordinated transmit and receive processing
KW - Interference cancellation
KW - Multi-stream selection
KW - Multi-user MIMO
UR - http://www.scopus.com/inward/record.url?scp=78549271464&partnerID=8YFLogxK
U2 - 10.1109/WICOM.2010.5601347
DO - 10.1109/WICOM.2010.5601347
M3 - Conference contribution
AN - SCOPUS:78549271464
SN - 9781424437092
T3 - 2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010
BT - 2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010
T2 - 2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010
Y2 - 23 September 2010 through 25 September 2010
ER -