An effective scheduling scheme for CoMP in heterogeneous scenario

Abstract

Coordinated Multi-Point (CoMP) transmission is considered as a tool for 3GPP LTE-Advanced to increase the cell edge throughput. In CoMP JT (Joint Transmission) mechanism, multiplied time-frequency resources are occupied by JT users. Additionally, scheduling relevancy exists among the users, i.e., scheduling orders of different users influence on the cell average and cell edge throughput. So the impact of scheduling relevancy should be considered among the users in the same coordination cluster. Otherwise, the CoMP system throughput will decline significantly. To address this issue, an effective scheduling scheme is proposed for CoMP in heterogeneous scenario. Taking both the user fairness and the throughput of the coordination cluster into account, a suitable scheduling scheme is proposed to improve the system throughput. System-level simulation results prove that, the proposed scheduling scheme outperforms the conventional scheduling scheme in terms of both cell average and cell edge spectral efficiency.

Radio resource management for 5G mobile communication systems with massive antenna structure

“…Li et al proposed a resource allocation scheme for JT in heterogeneous networks . They assumed that there always exists at least one UE in the coverage of an antenna.…”

“…Because both the numerical and simulation results are approximately similar, we can state that our numerical model is properly formulated. For further evaluation of our proposed scheme on various performance metrics, that is, throughput, beam utilization and fairness, we compare our results with a reference scheme proposed by Li et al in .…”

Interference Management in HetNets

“…In the literature, the studies of JT-CoMP in HetNets deal with resource scheduling, with the goal of maximizing throughput for the cell edge users [15,26], and with achieving efficient use of power to produce solutions that are compliant with green communication paradigms [14,47].…”

Energy Efficiency Maximization of Dynamic CoMP‐JT Algorithm in Dense Small Cell Networks

“…On the other hand, some studies have discussed multicell CoMP transmission (CoMP) [8][9][10][11][12][13][14][15] of cellular network. CoMP-JT is a promising technique that guarantees data availability at multiple coordinated SBSs transmitted to a user simultaneously to improve the received signal quality of the user and reduce intercell interference, which is proposed in Third Generation Partnership Project (3GPP) LTE-Advanced systems [8].…”

“…CoMP-JT is a promising technique that guarantees data availability at multiple coordinated SBSs transmitted to a user simultaneously to improve the received signal quality of the user and reduce intercell interference, which is proposed in Third Generation Partnership Project (3GPP) LTE-Advanced systems [8]. In [9][10][11], the authors studied CoMP-JT from the aspects of throughput and coverage probability. However, EE optimization is not considered.…”