Optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel

Elsheikh, Elsheikh Mohamed Ahmed (2008) Optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel. Journal of Communications, 3 (2). pp. 43-52. ISSN 1796-2021

PDF - Published Version Restricted to Repository staff only Download (680kB) | Request a copy

Abstract

Providing space diversity at mobile devices such as handsets, personal digital assistants (PDA), etc is costly and problematic, due to their strict space limitation. Recent studies, however, have revealed that extraordinary diversity gain, which results in the remarkable benefits of an increased achievable transmission code-rate and a reduced information outage probability, can be obtained from a relay node in the proximity, which forwards the decoded information from the source node to the intended destination node via a diversity path. While previous works had shown the impressive gains from simple fixed-relaying schemes over non-relaying, this paper takes an information-theoretic viewpoint to study the optimal decode-and-forward (DF) single-hop relay strategy for maximizing the mutual information between the source and destination nodes exploiting the instantaneous channel state information at the nodes (CSIN), and for minimizing the outage probability if only the statistical channel information is known at the nodes (SCIN). In particular, our aim is to optimize the time and power distribution between the direct transmission and relaying phases, for a cooperative three-node relay fading channel.

Item Type:	Article (Journal)
Additional Information:	7119/45862
Uncontrolled Keywords:	cooperation diversity, MANET, mutual information, power control, relay, outage probability
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
Depositing User:	Dr Elsheikh M. A. Elsheikh
Date Deposited:	25 Nov 2015 10:00
Last Modified:	25 Nov 2015 10:00
URI:	http://irep.iium.edu.my/id/eprint/45862

Actions (login required)

View Item