Author
Çelik, Y., Odabaşıoğlu, N., Uysal, Murat
Publication Date
2013
Publication Place
-
IEEE
Subject
Amplify and forward communication, Channel estimation, Cooperative communication, Error statistics, Expectation-maximisation algorithm, Fading channels, Relay networks (telecommunication)
Type
Document
Language
Turkish
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
978-1-4673-5561-2
Record ID
ddcd6162-7718-4883-873a-61964ceba3bb
Library Location
Electrical & Electronics Engineering
Date
2013
Sample Text
In this paper, we investigate joint channel gain and time offset estimation for two different data aided methods in cooperative communication with amplify-and-forward (AF) relaying. First one is the Cascaded Estimation (CE) method which channel gain, and time offset consisting of both source-to-relay, and relay-to-destination links are estimated at the destination terminal, second one is Disintegrated Estimation (DE) method which channel gain, and time offset are estimated seperately at the relay for source-to-relay link, and at the destination for relay-to-destination link. Both of the proposed joint estimators are based on Expectation-Maximization (EM) algorithm and, produce a low-complexity solution of itaretive maximum likelihood (ML) estimation. It was observed by the bit error rate (BER) curves, the proposed methods provide good performances with low-complexity.
DOI
10.1109/SIU.2013.6531189
