Lifetime maximization based resource allocation for M2M communication networks

Abstract

The lifetime of machine to machine (M2M) communication networks plays significant impact on system performance and user quality of service (QoS). To increase network lifetime, efficient resource allocation schemes can be applied. In this paper, we study the network lifetime maximization problem of an M2M communication network consisting one base station (BS) and a number of machine type communications devices (MTCDs) and propose to achieve the objective through designing joint mode selection and resource allocation scheme. By transforming the network lifetime maximization problem as a residual energy maximization problem, we formulate the joint mode selection and resource allocation problem as an optimization problem which maximizes the residue energy of all the MTCDs. As the formulated optimization problem is nonconvex, which cannot be solve easily using traditional optimization tools, we transform it into convex one through mathematical manipulations and then solve the problem by applying Lagrange dual method. Simulation results demonstrate the effectiveness of the proposed algorithm.