Optimal Power Allocation in Cooperative MIMO-NOMA with FD/HD Relaying in THz Communications
Omar Elkharbotly, Engy Aly Maher, Ahmed El‐Mahdy, Falko Dressler
Abstract
In this paper, power allocation problem for cooperative THz MIMO-NOMA system is studied to maximize the minimum achievable rate of the available users. The cooperative system consists of a base station (Bs) that communicates directly with a nearby user, while a relay node (RN) is used to help the Bs to communicate with the far user. The RN operates in HD and FD modes using DF protocol. The Bs is equipped with multiple antennas, while both the relay and the user nodes are equipped with single antenna. The optimization problem for power allocation is solved analytically and validated numerically.
Topics & Concepts
NomaRelayMIMOBase stationComputer scienceComputer networkNode (physics)Power (physics)Cooperative MIMOProtocol (science)Antenna (radio)Electronic engineering3G MIMOTelecommunicationsEngineeringTelecommunications linkPhysicsChannel (broadcasting)Alternative medicineMedicinePathologyQuantum mechanicsStructural engineeringAdvanced Wireless Communication TechnologiesCooperative Communication and Network CodingEnergy Harvesting in Wireless Networks