The mechanism of Coordinated Multi-Point (CoMP) can improve the spectral efficiency of the 4G and 5G cellular network, and also can reduce transmitting power of base stations (BSs). However, CoMP requires a large amount of energy due to extra signal processing and backhaul traffic. In this paper, an energy-efficient algorithm based on optimal dynamic clustering mechanism (ODCEM) for CoMP networks is proposed, which aims to minimize the overall network energy consumption. In the ODCEM, cells are pre-ordered in descending order according to their traffic load increments. The cell with lowest load increment is selected to switch off. Then, users in selected cell are handed over to other neighboring cells if quality of service (QoS) for users can be guaranteed. After that, the selected cell is switched off to conserve network energy. The remaining cells in each CoMP cluster will be evaluated after the previous order is updated. The simulation results show that the energy efficiency of ODCEM schemes is significantly higher than that of fixed CoMP algorithm in terms of SINR and traffic loads. Furthermore, the ODCEM algorithm can achieve better energy efficiency with lower computational complexity according to the performance evaluation of user association and BS switching off.

协作多点（CoMP）机制可以提高4G和5G蜂窝网络的频谱效率，还可以降低基站（BS）的发射功率。但是，由于额外的信号处理和回程流量，CoMP需要大量能量。提出了一种基于最优动态聚类机制（ODCEM）的CoMP网络节能算法，旨在最大程度地降低网络总体能耗。在ODCEM中，根据信元的业务负载增量以降序对信元进行预排序。选择具有最小负载增量的单元关闭。然后，如果可以确保用户的服务质量（QoS），则将所选小区中的用户切换到其他相邻小区。之后，关闭选定的电池以节省网络能量。在更新先前的顺序之后，将评估每个CoMP群集中的其余单元。仿真结果表明，在SINR和流量负载方面，ODCEM方案的能量效率明显高于固定CoMP算法。此外，ODCEM算法可以根据用户关联和BS关闭的性能评估，以较低的计算复杂度实现更高的能源效率。