Department of Information and Communication Engineering, Faculty of Computer Science and Systems Engineering, Okayama Prefectural University, Okayama 719-1197, Japan.
Graduate School of Information Sciences, Hiroshima City University, 3-4-1, Ozuka-Higashi, Asa-Minami-Ku, Hiroshima 731-3194, Japan.
Sensors (Basel). 2022 Mar 10;22(6):2172. doi: 10.3390/s22062172.
Wireless body area networks (WBANs) are attracting attention as a very important technology for realizing an Internet of Medical Things (IoMT). IEEE 802.15.6 is well known as one of the international standards for WBANs for the IoMT. This article proposes the combination of the IEEE 802.15.6 ultra-wideband (UWB) physical layer (PHY) with a super orthogonal convolutional code (SOOC) and evaluates its performance as a dependable WBAN. Numerical results show that sufficient dependability cannot be obtained with the error-correcting code specified in IEEE 802.15.6 when applying the single pulse option, while both high energy efficiency and dependability can be obtained by applying an SOCC. In addition, it is confirmed that higher dependability can be obtained by combining an SOCC with a Reed-Solomon (RS) code with a coding rate that is almost the same as the error correction code specified in the standard. Furthermore, the results indicate that high dependability and energy efficiency can be obtained by adjusting the SOCC coding rate and UWB PHY parameters, even in the burst pulse option. The SOCC-applied UWB PHY of this research satisfies the high requirements of the IoMT.
无线体域网（WBAN）作为实现医疗物联网（IoMT）的一项非常重要的技术引起了人们的关注。IEEE 802.15.6 作为用于 IoMT 的 WBAN 的国际标准之一而广为人知。本文提出了将 IEEE 802.15.6 超宽带（UWB）物理层（PHY）与超正交卷积码（SOCC）相结合，并评估其作为可靠 WBAN 的性能。数值结果表明，在应用单脉冲选项时，IEEE 802.15.6 中指定的纠错码无法获得足够的可靠性，而应用 SOCC 则可以同时获得高能效和可靠性。此外，通过将 SOCC 与编码率几乎与标准中指定的纠错码相同的 Reed-Solomon（RS）码相结合，可以获得更高的可靠性。此外，结果表明，即使在突发脉冲选项中，通过调整 SOCC 编码率和 UWB PHY 参数，也可以获得高可靠性和高能效。本研究中应用 SOCC 的 UWB PHY 满足了 IoMT 的高要求。
