Analysis of Instantaneous Power Distributions for Non-Regenerative and Regenerative Relaying Signals

Author

Ishibashi, Koji ; Ochiai, Hideki

Author_Institution

Dept. of Electr. & Electron. Eng., Shizuoka Univ., Hamamatsu, Japan

Volume

11

Issue

1

fYear

2012

fDate

1/1/2012 12:00:00 AM

Firstpage

258

Lastpage

265

Abstract

In this paper, we analyze the instantaneous power distributions of the transmitting signals at the relay in the non-regenerative and regenerative cooperation scenarios with linear modulation. We study the following four relay function scenarios: fixed gain amplify and forward (AF) relay, variable gain AF relay, estimate and forward (EF) relay, and decode and forward (DF) relay. The analytical results show that the transmitting signals from non-regenerative relaying tend to suffer from high peak power, which is even prohibitive when the power amplifier (PA) efficiency at the relay is of primary concern.

Keywords

amplify and forward communication; cooperative communication; decode and forward communication; modulation; power amplifiers; decode and forward relay; estimate and forward relay; fixed gain amplify and forward relay; instantaneous power distribution analysis; linear modulation; nonregenerative relaying signals; power amplifier efficiency; regenerative relaying signals; transmitting signals; variable gain AF relay; Fading; Gain; OFDM; Phase shift keying; Relays; Signal to noise ratio; Instantaneous power distribution; amplify-and-forward (AF); decode-and-forward (DF); estimate-and-forward (EF);

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2011.120511.110274

Filename

6101590