A Low-Power LDPC Decoder for Multimedia Wireless Sensor Networks

Meng XU, Xincun JI, Jianhui WU, Meng ZHANG

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Summary :

This paper presents a low-power LDPC decoder that can be used in Multimedia Wireless Sensor Networks. Three low power design techniques are proposed in the decoder design: a layered decoding algorithm, a modified Benes network and a modified memory bypassing scheme. The proposed decoder is implemented in TSMC 0.13 µm, 1.2 V CMOS process. Experiments show that when the clock frequency is 32 MHz, the power consumption of the proposed decoder is 38.4 mW, the energy efficiency is 53.3 pJ/bit/ite and the core area is 1.8 mm2.

Publication
IEICE TRANSACTIONS on Communications Vol.E96-B No.4 pp.939-947
Publication Date
2013/04/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E96.B.939
Type of Manuscript
PAPER
Category
Fundamental Theories for Communications

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