AWGN and rayleigh fading behavior of the wireless decode-and-forward relay channel with arbitrary time and power allocation

Relying has in use for decades to tackle some of the challenges of wireless communication such as extending transmitting distance, transmitting over rough terrains. Diversity achieved through relaying is also a means to combat the random behavior of fading channels. In this work, effect of time and...

Full description

Bibliographic Details
Main Authors:	Zarol Fitri Khairol Fauz, Muhammad Zarol Fitri, Elsheikh, Elsheikh Mohamed Ahmed
Format:	Article
Language:	English English
Published:	Institute of Advanced Engineering and Science (IAES) 2018
Subjects:	TK5101 Telecommunication. Including telegraphy, radio, radar, television
Online Access:	http://irep.iium.edu.my/61621/ http://irep.iium.edu.my/61621/ http://irep.iium.edu.my/61621/ http://irep.iium.edu.my/61621/2/61621_AWGN%20and%20Rayleigh%20Fading%20Behavior%20_article.pdf http://irep.iium.edu.my/61621/8/61621_AWGN%20and%20rayleigh%20fading%20behavior_SCOPUS.pdf

id	iium-61621
recordtype	eprints
spelling	iium-616212020-02-17T02:47:11Z http://irep.iium.edu.my/61621/ AWGN and rayleigh fading behavior of the wireless decode-and-forward relay channel with arbitrary time and power allocation Zarol Fitri Khairol Fauz, Muhammad Zarol Fitri Elsheikh, Elsheikh Mohamed Ahmed TK5101 Telecommunication. Including telegraphy, radio, radar, television Relying has in use for decades to tackle some of the challenges of wireless communication such as extending transmitting distance, transmitting over rough terrains. Diversity achieved through relaying is also a means to combat the random behavior of fading channels. 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. There is half-duplex constraint and a total transmission power constraint on the relay source node and the relay node. A model is established to analyze the mutual information as a function of time allocation and power allocation in the case of AWGN regime. The model is extended to the Rayleigh fading scenario. In both AWGN and Rayleigh fading, results showed 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. When applied to cellular systems, we concluded that relaying is more beneficial to battery-operated mobile nodes than to base stations. Institute of Advanced Engineering and Science (IAES) 2018-04-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/61621/2/61621_AWGN%20and%20Rayleigh%20Fading%20Behavior%20_article.pdf application/pdf en http://irep.iium.edu.my/61621/8/61621_AWGN%20and%20rayleigh%20fading%20behavior_SCOPUS.pdf Zarol Fitri Khairol Fauz, Muhammad Zarol Fitri and Elsheikh, Elsheikh Mohamed Ahmed (2018) AWGN and rayleigh fading behavior of the wireless decode-and-forward relay channel with arbitrary time and power allocation. Indonesian Journal of Electrical Engineering and Computer Science, 10 (1). pp. 248-257. ISSN 2502-4752 E-ISSN 2502-4760 http://www.iaescore.com/journals/index.php/IJEECS/article/view/10883/8208 10.11591/ijeecs.v10.i1.pp248-257
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TK5101 Telecommunication. Including telegraphy, radio, radar, television
spellingShingle	TK5101 Telecommunication. Including telegraphy, radio, radar, television Zarol Fitri Khairol Fauz, Muhammad Zarol Fitri Elsheikh, Elsheikh Mohamed Ahmed AWGN and rayleigh fading behavior of the wireless decode-and-forward relay channel with arbitrary time and power allocation
description	Relying has in use for decades to tackle some of the challenges of wireless communication such as extending transmitting distance, transmitting over rough terrains. Diversity achieved through relaying is also a means to combat the random behavior of fading channels. 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. There is half-duplex constraint and a total transmission power constraint on the relay source node and the relay node. A model is established to analyze the mutual information as a function of time allocation and power allocation in the case of AWGN regime. The model is extended to the Rayleigh fading scenario. In both AWGN and Rayleigh fading, results showed 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. When applied to cellular systems, we concluded that relaying is more beneficial to battery-operated mobile nodes than to base stations.
format	Article
author	Zarol Fitri Khairol Fauz, Muhammad Zarol Fitri Elsheikh, Elsheikh Mohamed Ahmed
author_facet	Zarol Fitri Khairol Fauz, Muhammad Zarol Fitri Elsheikh, Elsheikh Mohamed Ahmed
author_sort	Zarol Fitri Khairol Fauz, Muhammad Zarol Fitri
title	AWGN and rayleigh fading behavior of the wireless decode-and-forward relay channel with arbitrary time and power allocation
title_short	AWGN and rayleigh fading behavior of the wireless decode-and-forward relay channel with arbitrary time and power allocation
title_full	AWGN and rayleigh fading behavior of the wireless decode-and-forward relay channel with arbitrary time and power allocation
title_fullStr	AWGN and rayleigh fading behavior of the wireless decode-and-forward relay channel with arbitrary time and power allocation
title_full_unstemmed	AWGN and rayleigh fading behavior of the wireless decode-and-forward relay channel with arbitrary time and power allocation
title_sort	awgn and rayleigh fading behavior of the wireless decode-and-forward relay channel with arbitrary time and power allocation
publisher	Institute of Advanced Engineering and Science (IAES)
publishDate	2018
url	http://irep.iium.edu.my/61621/ http://irep.iium.edu.my/61621/ http://irep.iium.edu.my/61621/ http://irep.iium.edu.my/61621/2/61621_AWGN%20and%20Rayleigh%20Fading%20Behavior%20_article.pdf http://irep.iium.edu.my/61621/8/61621_AWGN%20and%20rayleigh%20fading%20behavior_SCOPUS.pdf
first_indexed	2023-09-18T21:27:22Z
last_indexed	2023-09-18T21:27:22Z
_version_	1777412281279184896

AWGN and rayleigh fading behavior of the wireless decode-and-forward relay channel with arbitrary time and power allocation

Similar Items