An energy-efficient scheme for WiMAX downlink bursts construction

Abstract

One of the challenges in WiMAX networks is to increase resource and power efficiency by optimizing the downlink (DL) burst construction. This paper proposes an energy-efficient scheme that maximizes the use of resources at the base station (BS) while reducing the energy wasted caused by sending padding bits instead of useful data. This paper presents the derivation of the general optimization problem that was formulated as a nonlinear integer programming model. A simple case formulation is used to illustrate the general application. The results show an improvement in data packing that maximizes the utilization of frames, and minimizes energy wastage.