TY - GEN
T1 - User satisfaction based joint user selection and beamforming in TD-LTE-A downlink
AU - Wu, Xuanli
AU - Fu, Nannan
AU - Lin, Di
AU - Zhao, Wanjun
PY - 2014
Y1 - 2014
N2 - In TD-LTE-A downlink, user selection is a key technique when the number of users exceeds the amount could be supported by eNodeB at one Transmission Time Interval (TTI). In order to improve the fairness of different users and consider the difference of user traffic in the process of user selection, a Signal to Leakage and Noise-Ratio (SLNR) beamforming based joint user selection and beamforming algorithm is proposed in this paper. Since in TD-LTE-A systems, the traffic can be classified into two types: Guaranteed Bit Rate (GBR) traffic and Non-Guaranteed Bit Rate (Non-GBR) traffic, user satisfaction for GBR and Non-GBR traffic are defined at first, and then, based on the difference of traffic, a user satisfaction based joint user selection and beamforming algorithm is proposed. Simulation results show that compared with conventionally used joint user selection and beamforming algorithm, user satisfaction of GBR traffic can be increased by 300% due to the fact that GBR traffic always has higher priority than Non-GBR traffic. Moreover, user fairness can also be improved in terms of the variance of user satisfaction.
AB - In TD-LTE-A downlink, user selection is a key technique when the number of users exceeds the amount could be supported by eNodeB at one Transmission Time Interval (TTI). In order to improve the fairness of different users and consider the difference of user traffic in the process of user selection, a Signal to Leakage and Noise-Ratio (SLNR) beamforming based joint user selection and beamforming algorithm is proposed in this paper. Since in TD-LTE-A systems, the traffic can be classified into two types: Guaranteed Bit Rate (GBR) traffic and Non-Guaranteed Bit Rate (Non-GBR) traffic, user satisfaction for GBR and Non-GBR traffic are defined at first, and then, based on the difference of traffic, a user satisfaction based joint user selection and beamforming algorithm is proposed. Simulation results show that compared with conventionally used joint user selection and beamforming algorithm, user satisfaction of GBR traffic can be increased by 300% due to the fact that GBR traffic always has higher priority than Non-GBR traffic. Moreover, user fairness can also be improved in terms of the variance of user satisfaction.
KW - Signalto-Leakage-and-Noise-Ratio (SLNR)
KW - TD-LTE-A
KW - User fairness
KW - User selection
KW - User traffic
UR - https://www.scopus.com/pages/publications/84908612233
U2 - 10.1145/2641798.2641825
DO - 10.1145/2641798.2641825
M3 - 会议稿件
AN - SCOPUS:84908612233
T3 - MSWiM 2014 - Proceedings of the 17th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems
SP - 153
EP - 158
BT - MSWiM 2014 - Proceedings of the 17th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems
PB - Association for Computing Machinery, Inc
T2 - 17th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2014
Y2 - 21 September 2014 through 26 September 2014
ER -