Energy efficient error correction in mobile TV

Authors:
Xiaoying Shao;Roel Schiphorst;Cornelis H. Slump
Affiliations:
University of Twente, Enschede, The Netherlands;University of Twente, Enschede, The Netherlands;University of Twente, Enschede, The Netherlands
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

Citing 5
Cited 0

LT Codes

FOCS '02 Proceedings of the 43rd Symposium on Foundations of Computer Science
Information Theory, Inference & Learning Algorithms

Information Theory, Inference & Learning Algorithms
Fundamentals of wireless communication

Fundamentals of wireless communication
An opportunistic error correction layer for OFDM systems

EURASIP Journal on Wireless Communications and Networking - Special issue on OFDMA architectures, protocols, and applications
Raptor codes

IEEE Transactions on Information Theory

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Abstract

The current error correction layer of digital mobile TV is designed for worst case scenarios, which often do not apply. In this paper, we propose a new opportunistic error correction layer based on fountain codes and a resolution adaptive ADC, which has been integrated into the OFDM-based physical layer. The key element in the new proposed system is that only packets are processed by the receiver which have encountered high-energy channels. Others are discarded. With this new approach, around 84% of the energy consumption in ADCs can be saved compared with the conventional mobile TV system under the same channel conditions.