Interference-Aware Routing and Power Control Joint Optimization in Hybrid Wireless Networks

Abstract

In this paper, we optimize the routing and transmission power in hybrid wireless networks based on an interference-aware criterion. In particular, we consider a hybrid network consisted of a base-station (BS)-oriented network and a device-to-device (D2D) system cooperatively working on the same spectrum. Firstly, we formulate the joint optimization problem which aims to minimize the expected network cost for package delivery. Secondly, in order to analyze the relationship between the transmission power and the link cost, we develop a novel cost model considering the interference impact. Then we propose an efficient algorithm to solve the optimization problem. Finally we simulate the proposed scheme in the hybrid network based on LTE. The result shows an improved overall throughput, and demonstrates that the proposed scheme could well solve the compatibility problem of two wireless networks.