Publications – Details
Influence of HARQ with Unreliable Feedback on the Throughput of UMTS LTE
- Authors:
- Tobias Breddermann, Benedikt Eschbach, and Peter Vary
- Book Title:
- Proceedings of IEEE Vehicular Technology Conference (VTC-Fall)
- Venue:
- Quebec City, Canada
- Event Date:
- 3.-6.9.2012
- Organization:
- IEEE
- Publisher:
- VTS
- Date:
- Sept. 2012
- ISBN:
- 978-1-46731-880-8
- Language:
- English
Abstract
In this paper, the impact of HARQ signaling errors caused by unreliable feedback on the throughput of communication systems like UMTS LTE is investigated. We derive analytical expressions for the calculation of the average number of transmissions per data frame as well as the system throughput based on a general feedback channel model. In combination with the residual frame error rates (FERs) after channel decoding, measured for a system with error-free feedback, a semi-analytical evaluation of the influence of unreliable feedback information on the system throughput can be carried out for any feedback channel condition. Consequently, time-consuming simulations of the respective system with unreliable feedback can be avoided. The theoretical results are verified by extensive simulations of the UMTS LTE physical layer. They are also applicable to other communication systems.
Download of Publication
Copyright Notice
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
The following notice applies to all IEEE publications:
© IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.