Design of high‐speed data transfer turbo code for body channel communication transceivers

• Published in: International journal of communication systems Vol. 36; no. 7
• Main Authors: Vijayalakshmi, Sankaran, Paramasivam, Alagumariappan, Sakthivel, Sankaran, Kudiyarasan, Swamynathan, Sankaran, Esakky, Nagarajan, Velmurugan
• Format: Journal Article
• Language: English
• Published: Chichester Wiley Subscription Services, Inc 10.05.2023
• Subjects: Algorithms; body channel communication; Communication; Compensation; Data transfer (computers); Decoding; encoding scheme; Error correction; modulation; Power consumption; Transceivers; Turbo codes; Wireless communications
• ISSN: 1074-5351; 1099-1131
• DOI: 10.1002/dac.5447

Summary In this work, a digital differential transmitter based on low‐power wireless compensation transceiver for body channel communication (BCC) is proposed. Further, the proposed transceiver is composed of Touch Status Detection Unit (TSDU), Wireless Status Compensation Unit (WSCU), and a reconfigurable preamplifier. Initially, the human body channel environment for wireless communication is investigated based on properties from 1 to 100 MHz. Further, the turbo code‐based encoding scheme is used to encode the data before transferring the data on the transmitter side. Also, the proposed error‐correcting parallel turbo decoder using a modified step‐by‐step algorithm is presented. The turbo code‐based decoding scheme is used to recover the error‐free transmitted data at the receiver side. Results demonstrate that the proposed BCC transceiver is designed using 90 nm CMOS technology and it is observed that the proposed BCC transceiver has utilized an area of 600mm2. Also, the maximum data rate achieved by a proposed BCC transceiver was 100 Mbps, and the overall transceiver power consumption is 0.42 mW, and energy for communication is 0.02 nj/b. Key FindingsThe proposed BCC transceiver is as follows:• It is capable of operating in both high data rate and low data rate using the frequency divider.• Able to track the data error and correct automatically results in better bit error rate (BER) results. Also, the proposed BCC transceiver maintains a BER ratio of less than 10−8 with data delay of 10 ns.• It is a compact size since it utilizes the less area when compared to existing BCC transceivers.