Cart (Loading....) | Create Account
Close category search window
 

Distributed carrier synchronization for HF cooperative communication employing randomized space time block coding

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Banwell, T. ; Telcordia Technol., Red Bank, NJ, USA ; Dixon, J. ; Koshy, J. ; Waring, D.
more authors

The HF channel supports the wireless needs of expeditionary forces for both communication between nearby unit members (<5 km) and over-the-horizon reach-back to ship or rear base (OTH > 500 km). Cooperative communication combined with MIMO methods employing randomized space-time block coding (RST-BC) promise significant gain for over-the-horizon transmission which allows lower transmit power and improved warfighter mobility. However, RST-BC requires tight control of RF carrier frequency to be effective, without reliance on GPS or centralized timing protocols. We examined consensus timing created by a distributed first-order frequency locked PLL (FLL) comprised of the ad-hoc network of cooperating nodes. The necessary carrier synchronization can be achieved with distributed first-order FLL using only locally derived carrier frequency offset information. We report the performance of a fast carrier recovery method for the BPSK recruitment link with measured HF groundwave signals. A network simulation of the proposed distributed synchronization method is presented based on measured recruitment link behavior. Fast settling time is demonstrated with adequate tolerance to failure of individual nodes. The method is sufficient to meet the demanding requirements of RST-BC.

Published in:

Military Communications Conference, 2009. MILCOM 2009. IEEE

Date of Conference:

18-21 Oct. 2009

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.