A Low-Power LDPC Decoder for Multimedia Wireless Sensor Networks

作者：Xu Meng^*; Ji Xincun; Wu Jianhui; Zhang Meng

来源：IEICE TRANSACTIONS ON COMMUNICATIONS, 2013, E96B(4): 939-947.

DOI：10.1587/transcom.E96.B.939

• LDPC
• Multimedia Wireless Sensor Networks
• low power design
• layered decoding
• memory bypassing scheme
• Benes network

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 mu m, 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 mm(2).

• 出版日期2013-4
• 单位东南大学