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随着无所不在的医疗保健时代的来临,人体局域网(BAN)受到了国内外研究人员的广泛关注。为了促进人体局域网技术的发展,IEEE 802.15-TG6小组拟定了BAN技术规范草案,该技术规范草案中定义了三个物理层:窄频带、超宽带、人体通信。本文将对BAN窄带物理层发射模型进行研究。BAN基带发射模型包括信道编码、扩频、交织、扰码、调制。根据草案提出的规范,搭建BAN基带发射浮点数模型,并对搭建的模型进行仿真验证。结果表明,在适当的信噪比情况下,搭建的基带发射浮点数模型得到了较理想的误码率,满足了BAN通信技术的要求,为后续BAN物理层研究打下了基础,同时也有利于整个BAN物理层基带的完善。
With the advent of the ubiquitous healthcare era, the Human Area Local Area Network (BAN) has drawn the attention of researchers at home and abroad. In order to facilitate the development of human area local area network technology, the IEEE 802.15-TG6 team drafted a draft of the BAN specification, which defines three physical layers: narrowband, ultra-wideband, human body communication. This article will BAN narrowband physical layer launch model. BAN baseband transmission model includes channel coding, spreading, interleaving, scrambling, modulation. According to the norms proposed in the draft, a BAN baseband floating-point model was built, and the model was verified by simulation. The results show that under the appropriate signal-to-noise ratio, the built-in baseband floating-point model achieves a better BER, meets the requirements of BAN communication technology and lays the foundation for the subsequent research of BAN physical layer, Complete BAN physical layer baseband.