NDLI: Average BER and resource allocation in wireless powered decode-and-forward relay system

Content Provider	IET Digital Library
Author	Kumar, Pawan Dhaka, Kalpana
Abstract	In this study, the authors analyse the average bit-error rate (BER) of a wireless powered three-node decode-and-forward (DF) relay system in a Rayleigh fading environment. The direct link between the source and the destination is present and the received signals are combined using equal gain combining at the destination. Data is assumed to be binary phase-shift keying modulated. The relay node of the system is powered by the source node, i.e. the relay node harvests energy using radio frequency transmitted at the source node and forwards the signal using the harvested energy. The source data is communicated in three time slots; energy harvesting in the first time slot and selective DF relaying in the second and third time slots. The asymptotic expression of the average BER is analysed and used for the suboptimal energy allocation in different time slots. Since energy consumed in a slot depends on the transmitted power and the slot duration, the relation between them is used for the suboptimal allocation of the transmit power and time among different slots.
Starting Page	379
Ending Page	386
Page Count	8
ISSN	17518628
Volume Number	13
e-ISSN	17518636
Issue Number	Issue 4, Mar (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/13/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2018.5268
Journal	IET Communications
Publisher Date	2018-10-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Amplify And Forward Communication Average BER Average Bit-error Rate Binary Phase-shift Decode And Forward Communication Decode- Relay System Decoding Different Slots Different Time Slots Direct Link Diversity Reception Energy Harvesting Equal Gain Error Statistics Fading Channel Forward Relay System Harvested Energy Optimisation Technique Phase Shift Keying Radio Link And Equipment Radio Receiver Rayleigh Channel Rayleigh Fading Environment Received Signal Relay Node Harvests Energy Resource Allocation Selective DF Relaying Slot Duration Source Data Source Node Statistics Suboptimal Allocation Suboptimal Energy Allocation Three-node Decode- Node Decode-and-forward Time Slot Transmit Power Transmitted Power
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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