The impact of time and power allocation on the performance of the three-node decode and-forward relay channel

Khairol Fauzi, Muhammad Zarol Fitri and Elsheikh, Elsheikh Mohamed Ahmed (2017) The impact of time and power allocation on the performance of the three-node decode and-forward relay channel. In: 4th IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA) 2017, 28th-30th November 2017, Putrajaya.

	PDF - Published Version Restricted to Repository staff only Download (1MB) | Request a copy
Preview	PDF (SCOPUS) - Supplemental Material Download (179kB) | Preview
Preview	PDF (WOS) - Supplemental Material Download (275kB) | Preview

Abstract

Relying has in use for decades to tackle some of the challenges of wireless communication such as extending transmitting distance, transmitting over rough terrains. Relaying also achieve diversity which was proposed recently as an effective means to combat channel fading. In this work, effect of time and power allocation on relay performance is studied. The channel considered is the three-node channel with half-duplex constraint on the relay. The relaying technique assumed is decode-and-forward. Mutual information is used as the criteria to measure channel performance whereas noise is assumed to be the primary channel impairment. After deriving suitable formula for the mutual information as a function of time and power allocation, numerical results are obtained. Results have shown that the importance of relaying is more apparent when more resources are allocated to the relay. It was also shown that quality of the source to destination link has direct impact on the decision to relay or not to relay. Relatively good source to destination channel makes relaying less useful. The opposite is true for the other two links, namely the source to relay channel and the relay to destination channel. When these two channels are good, relaying becomes advantageous.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	7119/60873
Uncontrolled Keywords:	Three-node channel; decode-and-forward; power allocation; time allocation; relaying; mutual information
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication. Including telegraphy, radio, radar, television
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering Kulliyyah of Engineering
Depositing User:	Dr Elsheikh M. A. Elsheikh
Date Deposited:	12 Feb 2018 11:50
Last Modified:	25 Feb 2019 09:21
URI:	http://irep.iium.edu.my/id/eprint/60873

Actions (login required)

View Item