This paper addresses the utility-based radio resource allocation problem in DS-CDMA systems carrying multimedia traffic. The proposed scheme, aiming at achieving optimal resource allocation, considers the joint power and data rate allocation. To avoid high computational complexity of nonlinear optimization, we reformulate the radio resource allocation problem as a market model, where resource i...

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 ...

Abstract We consider the power and rate allocation for a transmission in wireless network where transmitter knows channel state of desired receiver but only statistics interferes. While this scenario is often encountered practice, extremely important dense networks, its optimal solution was not yet known. The analysis considers nodes that are distributed according to homogeneous Poisson point p...

This article addresses the problem of energy and code allocation to many users accessing, under spreading-based nonorthogonal multiple access, a wireless node set up with successive interference cancellation architecture aided by redundancy-check error control. As an application, we consider asynchronous access delay-tolerant satellite system, where employ finite-length channel codes are subjec...

In this paper, a novel initial videos allocation scheme and a dynamic load balancing strategy are proposed for a distributed video storage server in order to increase the availability and reduce operation cost. The initial allocation scheme determines the allocation of video replicas on the servers to achieve static load balance and to obtain a configuration for efficient dynamic load adjustmen...