Event Details
Power Allocation and Flight Path Planning for Floating Relay Supporting MTC Traffic in Cellular Systems
Presenter: Yue Li
Supervisor:
Date: Wed, July 18, 2018
Time: 08:30:00 - 00:00:00
Place: EOW 430
ABSTRACT
Abstract:
In the 5G cellular system, poor-quality MTC channels exist, which affect system performance. When the whole group MTC devices in an area experience high shadowing and penetration loss, we have to increase either the resource consumption or the transmitting power to overcome the poor-quality channels. The existing small-cell solution can improve the MTC channel quality, but MTC's unique traffic characteristics and quality of service requirements, as well as other practical issues, make the small-cell deployment unprofitable. Therefore, we propose a solution using Floating Relay (FR) given the mature technologies of Unmanned Aerial Vehicle (UAV). We first target on the high-shadowing channels of the MTC devices and introduce the FR into the cellular system to improve the transmission efficiency and maximize the system capacity. An optimization problem, given the capacity limit of the FR's back-haul link and the maximum transmission power of each user, is formulated and then theoretically solved. An effective on-line flight path planning algorithm is also proposed.