Improving instantaneous capacity and outage probability in DF-relaying

Author

Raeis, Majid ; Omidi, M.J. ; Kazemi, Jafar

Author_Institution

Dept. of Electr. & Comput. Eng., Isfahan Univ. of Technol., Isfahan, Iran

fYear

2013

fDate

14-16 May 2013

Firstpage

1

Lastpage

5

Abstract

Consider a Rayleigh flat fading relay channel under two different power constraints: sum power constraint and individual power constraints. In this paper a simple method for resource allocation based on partial channel state information at transmitter and full channel state information at receiver is introduced. It is shown that by using different time portions for the source and the relay in relaying, when the distance from relay to the source is very different from its distance to the destination, achievable rate can be enhanced and outage probability can be reduced under sum power constraint. Also in the case of individual power constraints, time allocation scheme can improve the achievable rate and outage probability.

Keywords

Rayleigh channels; decode and forward communication; probability; radio receivers; radio transmitters; relay networks (telecommunication); resource allocation; telecommunication power management; DF-relaying; Rayleigh flat fading relay channel; decode-and-forward; instantaneous capacity; outage probability; partial channel state information; power constraints; receiver; resource allocation; sum power constraint; time allocation scheme; transmitter; Capacity planning; Channel state information; Fading; Protocols; Receivers; Relays; Resource management;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering (ICEE), 2013 21st Iranian Conference on

Conference_Location

Mashhad

Type

conf

DOI

10.1109/IranianCEE.2013.6599806

Filename

6599806