Title :
A novel low power concatenated channel codec for WBANs
Author :
Weiyang Liu ; Haiyong Wang ; Nanjian Wu
Author_Institution :
State Key Lab. of Superlattices & Microstructures, Inst. of Semicond., Beijing, China
Abstract :
This paper proposes a novel concatenated channel codec for WBANs. It has been used in baseband transceiver to achieve low power consumption, high energy efficiency and high coding gain. It consists of variable-length Reed-Solomon (VL-RS) code, Hamming code, CRC code and Proactive Reed-Solomon Bypass (PRSB) circuits. This structure improves system code gain minimum 4dB and maximum 7.8dB at Bit Error Rate (BER) 10-3. It uses PRSB technique to proactive reduces the power consumption of decoding according to channel quality. It is designed in 0.18um CMOS technology. The lowest power consumption of whole baseband transceiver is 6.1 μW for TX and 7.2 μW for RX at 1.0V. Its energy efficiency is 19.6 pJ/bit for TX and 24.5 pJ/bit for RX at 5 Mbps.
Keywords :
CMOS integrated circuits; Hamming codes; Reed-Solomon codes; body area networks; codecs; concatenated codes; energy conservation; error statistics; power consumption; radio transceivers; CMOS technology; CRC code; Hamming code; PRSB circuits; PRSB technique; VL-RS; WBAN; baseband transceiver; bit error rate; channel quality; energy efficiency; low power concatenated channel codec; power consumption; proactive Reed-Solomon bypass circuits; variable-length Reed-Solomon code; Baseband; Bit error rate; Codecs; Decoding; Encoding; Power demand; Transceivers; CMOS; PRSB; VL-RS; WBAN; low power;
Conference_Titel :
Electron Devices and Solid State Circuit (EDSSC), 2012 IEEE International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4673-5694-7
DOI :
10.1109/EDSSC.2012.6482867
