Joint Energy-Spectral-Efficiency Efficiency Optimization of CoMP and BS Deployment in Dense Large Large-Scale Cellular Networks
Abstract: In this paper, the energy-spectral energy spectral efficiency (ESE) benefiting from the joint optimization of coordinated multi multi-point (CoMP)) transmission and base station (BS) deployment is evaluated in the context of dense large large-scale scale cellular network. We first derive a closed-form closed form network ESE expression for a large large-scale CoMPenhanced network, which allows us to quantify the influence of ke key network parameters on the achievable network ESE, including the BS density and the cooperation activation probability, characterized by a CoMP activation factor as well as the users’ behaviors, such as their geographical mobile mobile-traffic intensity and average age user rate. With the aid of this tractable ESE expression and for a given BS density, we next formulate a cellular cellular-scenario-aware aware CoMP activation optimization problem while considering the users’ outage probability as constraints to maximize the network’s network’s ESE. We then jointly optimize the CoMP activation factor and the BS density to maximize the network ESE, again under the constraint of the users’ outage probability. Our simulation results confirm the accuracy of our analysis and verify the impact of several several key parameters on the network ESE. Finally, the ESE improvement of our proposed strategies is evaluated under diverse scenarios, which provides valuable insight into the joint CoMP and BS deployment optimization in dense large large-scale scale cellular networks networks.