A power allocation algorithm maximizing system capacity in radio access networks

Throughput reliability analysis of cloud-radio access networks

“…The transmit power in the uplink and downlink must be controlled to avoid significant interference, maximize system capacity and EE. Currently, there are very few power control algorithms to adapt to the centralized management structure of the C‐RANs . The authors in proposed a power allocation algorithm for uplink transmissions in C‐RANs, where the proposed algorithm is applied to solving a capacity optimization problem.…”

“…Compared with the aforementioned works, this paper exhibits similarities. The paper is similar to in terms of RRH (or multicell) cooperation and studies the power control and EE of C‐RANs as in and , respectively. In terms of the analysis tool, this paper adopts the stochastic geometry framework for C‐RAN performance analysis, the same tool as used in for the SE performance analysis of traditional cellular networks with multicell cooperation.…”

“…First, the paper combines RRH cooperation with a power control policy to analyze the throughput reliability, energy efficiency, and spectral efficiency of C‐RANs. While also involve cooperation and power control, their analysis focus is on the system‐level performance metrics of SE and sum‐rate , sum‐rate , and system capacity , whereas this paper addresses in a holistic manner both the user‐level and network‐level performance metrics of throughput reliability, and EE and SE, respectively. Second, unlike and that focused on the uplink transmissions, the current paper studies the downlink transmissions with a goal to reduce the RRH transmission power, thus increase network EE and simultaneously enhance the user data rate; this somewhat conflicting objective is achieved through joint RRH cooperation and power control.…”

“…Third, this paper adopts a predefined distance‐based power control policy and studies its impact on C‐RAN performance. The works determine the transmission power as a solution to the formulated resource allocation problem, without explicit specification of a power control policy as performed in this paper. Finally, in order to manage the analysis complexity arising because of the combined RRH cooperation and power control, this paper studies the single input, single output C‐RAN to determine the throughput reliability, EE and SE, different from that studied the maximum average weighted sum‐rate of a MIMO C‐RAN.…”