Data rate enhancement method for body channel frequency selective digital transmission scheme

2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO) Pub Date : 2013-12-01 DOI:10.1109/IMWS-BIO.2013.6756255

C. Ho, Xin Liu, M. Je

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引用次数: 3

Abstract

Human body communication (HBC) is an emerging communication technique for wireless body area networks, which has recently been included in IEEE802.15.6 standard. The HBC transmitter uses the frequency selective digital transmission (FSDT) scheme, where Walsh code are used to spread the information bits. The data rate of this system is limited to 1.3125 Mbps, due to the limited set of spreading codes available for use under the transmission mask of IEEE802.15.6. In this paper, we present a code stacking method that effectively doubles the data rate using the same set of Walsh code. The performance of the proposed amplitude modulated FSDT scheme depends on the effectiveness of the system to reduce the effect of inter-symbol interference (ISI). Two methods for minimizing the effect of ISI are presented in this paper. Comparing to the FSDT scheme, doubling the data rate resulted in signal to noise ratio degradation of 1 dB.

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体信道选频数字传输方案的数据速率增强方法

人体通信(HBC)是一种新兴的无线体域网络通信技术，最近被纳入IEEE802.15.6标准。HBC发射机采用频率选择数字传输(FSDT)方案，其中沃尔什码用于传播信息位。由于IEEE802.15.6传输掩码下可用的扩展码集有限，本系统的数据速率被限制在1.3125 Mbps。在本文中，我们提出了一种代码堆叠方法，可以使用相同的Walsh码集有效地将数据速率提高一倍。所提出的调幅FSDT方案的性能取决于系统减少码间干扰(ISI)影响的有效性。本文提出了两种减小ISI影响的方法。与FSDT方案相比，数据速率加倍导致信噪比下降1db。

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2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)

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