Resource Allocation Scheme for mm-Wave D2D Multicasting Underlaying Cellular Network

Abstract

In the future generation of wireless communication systems the milli-meter wave (mmWave) based transmission technology has been widely recognized as an important revolution to provide sufficient spectrum resources for varieties of services Moreover in the mmWave-based system embedding the device-to-device (D2D) communication network (DN) into the cellular network (CN) is one of the important breakthroughs to utilize the spatial resources To this end an efficient spectrum sharing strategy between the DN and CN can effectively boost the overall spectrum efficiency (SE) In this paper we investigate the many-to-many spectrum sharing between the DN and CN Specifically multiple D2D broadcasting groups are properly arranged to share multiple orthogonal channels owned by the cellular users Also the uniform linear antenna array (ULA) is deployed at all the devices to strengthen the transmission directionality of mmWave such that the spatial resources can be effectively utilized And accordingly the broadcasting task is carried out by rotating the beam direction which eliminates stronger interference incurred by many-to-many spectrum sharing Then on top of the considered system scenario three spectrum sharing algorithms are proposed including the Greedy Heuristic and adaptive Gale-Shapley (AGS) schemes Verified by the simulation results the performance of the AGS algorithm can well approach the upper bound (i e the Greedy algorithm) in terms of the overall SE while restraining its computation complexity to just a constant multiple of that for the Heuristic algorithm

Date of Award	2019
Original language	English
Supervisor	Chih-Wen Chang (Supervisor)