Energy Efficient Error Correction in Mobile TV

Author

Shao, Xiaoying ; Schiphorst, Roel ; Slump, Cornelis H.

Author_Institution

Univ. of Twente, Enschede, Netherlands

fYear

2009

fDate

14-18 June 2009

Firstpage

1

Lastpage

6

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.

Keywords

OFDM modulation; analogue-digital conversion; digital video broadcasting; error correction codes; forward error correction; mobile television; OFDM-based physical layer; digital mobile TV; energy consumption; energy efficient error correction; fountain codes; high-energy channel; opportunistic error correction layer; resolution adaptive ADC; Dynamic range; Energy consumption; Energy efficiency; Energy resolution; Error correction; Fading; Forward error correction; Mobile TV; OFDM; Physical layer;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2009. ICC '09. IEEE International Conference on

Conference_Location

Dresden

ISSN

1938-1883

Print_ISBN

978-1-4244-3435-0

Electronic_ISBN

1938-1883

Type

conf

DOI

10.1109/ICC.2009.5198991

Filename

5198991