TY - GEN
T1 - Tree-structured user scheduling algorithm and its implementation in multi-user MIMO systems
AU - Wang, Junyi
AU - Liu, Jiang
AU - Sato, Takuro
AU - Vasilakos, Athanasios
AU - Araki, Kiyomichi
PY - 2008/10/6
Y1 - 2008/10/6
N2 - The paper describes a low complexity tree-structure based user scheduling algorithm in a MLD-based multi-user multiple-input multiple-output (MIMO) wireless systems. An M-branch selection algorithm, which selects M most-possible best branches at each step, is proposed to maximize the whole system sum-rate capacity. To make this work more feasible, some implementation problems such as complexity reduction, power control and performance distortion of channel estimation are also discussed in this paper. Both theoretical analysis and simulation results show that the complexity of proposed scheme, linearly increases with the number of user candidates and the number of antennas to be selected and is much lower than full research algorithm. Furthermore the algorithm can also be performed independently with power control and is robust to the channel estimation error.
AB - The paper describes a low complexity tree-structure based user scheduling algorithm in a MLD-based multi-user multiple-input multiple-output (MIMO) wireless systems. An M-branch selection algorithm, which selects M most-possible best branches at each step, is proposed to maximize the whole system sum-rate capacity. To make this work more feasible, some implementation problems such as complexity reduction, power control and performance distortion of channel estimation are also discussed in this paper. Both theoretical analysis and simulation results show that the complexity of proposed scheme, linearly increases with the number of user candidates and the number of antennas to be selected and is much lower than full research algorithm. Furthermore the algorithm can also be performed independently with power control and is robust to the channel estimation error.
UR - http://www.scopus.com/inward/record.url?scp=52949085525&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=52949085525&partnerID=8YFLogxK
U2 - 10.1109/IWCMC.2008.154
DO - 10.1109/IWCMC.2008.154
M3 - Conference contribution
AN - SCOPUS:52949085525
SN - 9781424422029
T3 - IWCMC 2008 - International Wireless Communications and Mobile Computing Conference
SP - 893
EP - 898
BT - IWCMC 2008 - International Wireless Communications and Mobile Computing Conference
T2 - International Wireless Communications and Mobile Computing Conference, IWCMC 2008
Y2 - 6 August 2008 through 8 August 2008
ER -