This letter introduces a novel framework to optimize the power allocation for users in Rate Splitting Multiple Access (RSMA) network. In network, messages intended are split into different parts that single common part and respective private parts. mechanism enables RSMA flexibly manage interference thus enhance energy spectral efficiency. Although possessing outstanding advantages, optimizing ...

In this paper, power allocation over time-varying multi-user multi-relay amplify-and-forward networks is studied. Specifically, stochastic network sum-rate, max-min rate power allocation and total power minimization problems are formulated. However, solving such stochastic problems relies on perfect global instantaneous channel state information (CSI), and thus entails complex computations and ...

In this paper, an energy efficient power allocation scheme is proposed for a distributed massive multiple-input multiple-output (MIMO) system with a circular antenna array. Single-antenna users simultaneously transmit signal to the base station (BS) with a large number of distributed antennas. The tight approximation of the energy efficiency (EE) is derived in closed form expressions. Through j...

This paper investigates the power allocation for upstream and downstream signals in twisted-pair channels in order to maximize data rate. The channels interfere with each other in two forms: the near-end crosstalk and far-end crosstalk. These interferences can be mitigated by the joint optimization of upstream and downstream power spectral density (PSD). We derive the condition under which a su...