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Joint Scheduling and Power Control in Coordinated Multi-Point Clusters

Jingya Li (Institutionen för signaler och system, Kommunikationssystem) ; Tommy Svensson (Institutionen för signaler och system, Kommunikationssystem) ; Carmen Botella ; Thomas Eriksson (Institutionen för signaler och system, Kommunikationssystem) ; Xiaodong Xu ; Xin Chen
2011 IEEE 74th Vehicular Technology Conference: VTC2011-Fall 5-8 September 2011, San Francisco, United States. (1550-2252). p. Art. no. 6092837. (2011)
[Konferensbidrag, refereegranskat]

In this paper, we address the problem of designing a joint scheduling and power control algorithm in a downlink coordinated multi-point (CoMP) cluster supporting CoMP joint transmission. The objective is to maximize the cell-edge throughput under per-point power constraints. By an analytical derivation, binary power control is proved to be the optimal solution for any given selected user group. Utilizing this analytical result, a centralized and a semi-distributed version of joint user selection and power control algorithms are proposed. Compared to algorithms without considering joint transmission and algorithms without considering power control, simulation results show that the proposed algorithms achieve a good trade-off between joint transmission and interference coordination, which helps to improve the cell-edge performance.

Nyckelord: Coordinated Multi-Point, Power Control, Scheduling, Joint transmission, Interference coordination



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Denna post skapades 2011-12-16. Senast ändrad 2016-07-01.
CPL Pubid: 150219

 

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