Cost Efficiency Optimization of 5G Wireless Backhaul Networks

摘要

To cater for the demands of future fifth generation (5G) ultra-dense smallcell networks, the wireless backhaul network is an attractive solution for theurban deployment of 5G wireless networks. Optimization of 5G wireless backhaulnetworks is a key issue. In this paper we propose a two-scale optimizationsolution to maximize the cost efficiency of 5G wireless backhaul networks.Specifically, the number and positions of gateways are optimized in the longtime scale of 5G wireless backhaul networks. The wireless backhaul routings areoptimized in the short time scale of 5G wireless backhaul networks. Numericalresults show the cost efficiency of proposed optimization algorithm is betterthan the cost efficiency of conventional and most widely used shortest path(SP) algorithm in 5G wireless backhaul networks.