TY - GEN
T1 - Adaptive multiuser MIMO transmission in wireless systems with cooperating cells
AU - Lee, Jin Hee
AU - Ko, Young Chai
AU - Yang, Hong Chuan
PY - 2010
Y1 - 2010
N2 - In multicell wireless systems with insufficient frequency reuse, user transmission will suffer other-cell interference (OCI). Cell cooperation is an effective way to mitigate OCI and increase the system sum rate. An adaptive scheme for serving one user in each cell was proposed in [1]. In this paper, we generalize that scheme by serving more than one user in each cell with adaptive zeroforcing beam forming (ZF) strategies. Based on our derived statistics of the signal-to-noise plus interference ratios, we choose the scheme to maximize the total ergodic sum-rate based on user locations. Through the numerical examples, we show that the total system sum rate can be improved by selecting appropriate transmitting strategy adaptively. As a result, our proposed system can explore spatial multiplexing gain without additional power and thus improves total system sum rate significantly.
AB - In multicell wireless systems with insufficient frequency reuse, user transmission will suffer other-cell interference (OCI). Cell cooperation is an effective way to mitigate OCI and increase the system sum rate. An adaptive scheme for serving one user in each cell was proposed in [1]. In this paper, we generalize that scheme by serving more than one user in each cell with adaptive zeroforcing beam forming (ZF) strategies. Based on our derived statistics of the signal-to-noise plus interference ratios, we choose the scheme to maximize the total ergodic sum-rate based on user locations. Through the numerical examples, we show that the total system sum rate can be improved by selecting appropriate transmitting strategy adaptively. As a result, our proposed system can explore spatial multiplexing gain without additional power and thus improves total system sum rate significantly.
UR - http://www.scopus.com/inward/record.url?scp=78650758262&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78650758262&partnerID=8YFLogxK
U2 - 10.1109/WIMOB.2010.5645037
DO - 10.1109/WIMOB.2010.5645037
M3 - Conference contribution
AN - SCOPUS:78650758262
SN - 9781424477425
T3 - 2010 IEEE 6th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2010
SP - 386
EP - 391
BT - 2010 IEEE 6th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2010
T2 - 6th Annual IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2010
Y2 - 11 October 2010 through 13 October 2010
ER -