Hypergraph-based resource allocation for Device-to-Device underlay H-CRAN network

• DOI: 10.1177/1550147720951337
• Publication Date: 2020-08-25T08:26:55Z
• Authors: Pan Zhao; Wenlei Guo; Datong Xu; Zhiliang Jiang; Jie Chai; Lijun Sun; He Li; Weiliang Han
• Keywords: Frequency allocation; Channel allocation schemes; Underlay

In the hybrid communication scenario of Heterogeneous Cloud Radio Access Network and Device-to-Device in 5G, spectrum efficiency promotion interference controlling caused by reuse are still challenges. this article, a novel resource management method, consisting power channel allocation, is proposed to solve problem. An optimization model maximum system throughput system, which constrained Signal Interference plus Noise Ratio requirements all users diverse layers, established. To non-convex mixed integer nonlinear problem, decomposed into two sub-problems, solvable quasi-convex allocation allocation. The first step problem based on solid geometric programming with vertex search method. Then, constructed three-dimensional hypergraph matching established, best result obtained heuristic greed algorithm bipartite conflict graph µ-claw search. Finally, simulation results show that scheme improves performance at least 6% over other algorithms.