6533b829fe1ef96bd1289a7a

RESEARCH PRODUCT

Joint Power Allocation and Link Selection for Multi-Carrier Buffer Aided Relay Network

Bong Jun ChoiImran KhanTayyaba JabeenZain AliWali Ullah KhanGuftaar Ahmad Sardar SidhuFurqan Jameel

subject

Optimization problemComputer Networks and CommunicationsComputer scienceOrthogonal frequency-division multiplexinglcsh:TK7800-8360Throughput02 engineering and technologyPower budgetlaw.inventionBase stationlangaton tiedonsiirto0203 mechanical engineeringoptimointiRelaylaw0202 electrical engineering electronic engineering information engineeringComputer Science::Networking and Internet Architecturedecode and forwardElectrical and Electronic Engineeringlink selectionbuffer aided relayComputer Science::Information TheoryOFDMbusiness.industryNode (networking)lcsh:Electronics020302 automobile design & engineering020206 networking & telecommunicationstiedonsiirtopower allocationPower (physics)joint optimizationHardware and ArchitectureControl and Systems EngineeringSignal Processingaverage throughputbusinessComputer network

description

In this paper, we present a joint power allocation and adaptive link selection protocol for an orthogonal frequency division multiplexing (OFDM)-based network consists of one source node i.e., base station (BS), one destination node i.e., (MU) and a buffer aided decode and forward (DF) relay node. Our objective is to maximize the average throughput of the system via power loading over different subcarriers at source and relay nodes. A separate power budget is assumed at each transmitting node to make the system more practical. In order to form our solution more tractable, a decomposition framework is implemented to solve the mixed integer optimization problem. Further, less complex suboptimal approaches have also been presented and simulation results are provided to endorse the efficiency of our designed algorithms.

10.3390/electronics8060686https://www.mdpi.com/2079-9292/8/6/686