Low Power BCH Decoder using Early Termination Scheme for WBAN Standard

This paper presents a (63, 51) BCH decoder for the IEEE 802.15.6 wireless body area network (WBAN) standard. WBAN is applied to medical and non-medical devices that require short-range communications for human body. To reduce power consumption, the proposed BCH decoder uses an early termination scheme for the syndrome computation and Chien search, which can correct errors earlier. The proposed (63, 51) BCH decoder is implemented using the Samsung 65-nm CMOS standard cell library. Implementation results show that power consumption decreased to 45.86% compared to the case without the ET scheme at SNR = 7 dB.