Analisis Unjuk Kerja Sistem Kendali Daya Terpusat pada Jaringan Homogen Femtocell

Abstract

The power control system is closely related to the interference problem between users on a homogeneous femtocell network. Power control can also keep the device battery in order to save on power usage. The form of centralized power control or abbreviated as CPC is used in this study with a performance analysis based on the solution method using a feasible solution algorithm. By testing the feasibility of the power vector value, a viable solution can be reached if the user has a non-negative power vector value, which means that the target SINR can be achieved and the system can be implemented. This study is focused on single channel and multi-channel which is applied to multi-users. The results show that when the system condition is feasible, all user power is positive and all users are able to achieve the specified target signal to noise ratio (SINR), namely 13 dB for the 5 user scheme and 9.5 dB for the 10 user scheme. In infeasible conditions, the user power on the power vector is negative and some users do not reach the target SINR. When using a shared channel, adding users will decrease the SINR received by the user. The smaller the user group size, the higher the SINR that can be achieved. This is because the interference between users is getting smaller.