TY - GEN
T1 - Joint CoMP and power allocation in ultra dense networks
AU - Wu, Jingjing
AU - Zeng, Jie
AU - Su, Xin
AU - Xu, Xibin
AU - Xiao, Limin
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/6/7
Y1 - 2017/6/7
N2 - Ultra dense networks (UDN) can be considered as one of the key technologies of 5G, since it can improve capacity and spectral efficiency. With the densification of cell networks, the signals received by cell edge users may be from more than one cell. In this situation, coordinated multi-points (CoMP) technology can be used to improve the sum rate in the system. Considering the constraints of resource allocation posed by CoMP, a CoMP based on cell load-aware (CLA-CoMP) is proposed. It can balance the cell load by adjusting the number of users serviced by small base stations. The relationship between small base stations and users being finalized. And then, the power allocation is considered. In order to improve the sum rate in the system, a power allocation based on proportional fairness (PF-PA) is proposed. It can allocate more power to better users with good channel state. The simulation results show that, CLA-CoMP can improve sum rate compared with traditional CoMP and PF-PA can improve sum rate compared with the average power allocation in the system. As a result, joint CLA-CoMP and PF-PA can obtain the maximum system performance gain.
AB - Ultra dense networks (UDN) can be considered as one of the key technologies of 5G, since it can improve capacity and spectral efficiency. With the densification of cell networks, the signals received by cell edge users may be from more than one cell. In this situation, coordinated multi-points (CoMP) technology can be used to improve the sum rate in the system. Considering the constraints of resource allocation posed by CoMP, a CoMP based on cell load-aware (CLA-CoMP) is proposed. It can balance the cell load by adjusting the number of users serviced by small base stations. The relationship between small base stations and users being finalized. And then, the power allocation is considered. In order to improve the sum rate in the system, a power allocation based on proportional fairness (PF-PA) is proposed. It can allocate more power to better users with good channel state. The simulation results show that, CLA-CoMP can improve sum rate compared with traditional CoMP and PF-PA can improve sum rate compared with the average power allocation in the system. As a result, joint CLA-CoMP and PF-PA can obtain the maximum system performance gain.
KW - Cell load
KW - CoMP
KW - Power allocation
KW - UDN
UR - https://www.scopus.com/pages/publications/85021752408
U2 - 10.1109/WTS.2017.7943534
DO - 10.1109/WTS.2017.7943534
M3 - 会议稿件
AN - SCOPUS:85021752408
T3 - Wireless Telecommunications Symposium
BT - 2017 Wireless Telecommunications Symposium, WTS 2017
PB - IEEE Computer Society
T2 - 16th Annual Wireless Telecommunications Symposium, WTS 2017
Y2 - 26 April 2017 through 28 April 2017
ER -