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The 2013 7th International Symposium on Medical Information and Communication Technology (ISMICT) took place 6-8 March 2013 in Tokyo, Japan. Information and Communication Technology (ICT) for medical and healthcare applications, and Body Area Network (MBAN) are the focus of the Seventh International Symposium on Medical Information and Communication Technology (ISMICT2013). ISMICT2013 aims to establish...
Smart health care, that measures users' living conditions and health status using small sensing devices and collecting their data over a network under daily life, is expected as a new trend. It is getting paid more attention along with the increase of demands of preventive care. In this paper, vital data rates and the amount of the data accumulation in a variety of smart health care use cases are...
As a novel vital sign monitor, we have developed wireless ECG monitoring system with Near-field intra-body communication (NF-IBC) technique. However, it was hard to ensure communication reliability because transmission channel is noisy and unstable. In order to improve the problem, we utilize spread spectrum (SS), which is known as robust communication technique even through poor transmission channel...
Wireless body area network (BANs) have attracted a lot of attention as a future technology of wireless networks. Wireless BANs are generally divided into two kinds of groups, i.e., on-body BANs and in-body BANs. However, the performance requirements and channel propagation characteristics of the two BANs are quite different from each other, that is, wireless signals are approximately transmitted along...
To examine the practical potential of an optical body area network (BAN) technique, a feasibility study was conducted of optical data transmission through a human hand using diffusely scattered light. The data transmission of 170 mm distance in a human hand was accomplished to show the possibility of the data transmission from the wrist to the fingertips in an adult hand. The frequency bandwidth for...
Wireless body area network (WBAN) is envisioned to became self-evident in future healthcare environments. One candidate to fulfill the reliably and efficiency requirements set by sending vital biomedical information is the novel IEEE 802.15.6 WBAN standard. In this paper, we study the effect of user priority scheme defined for different types of data in the IEEE 802.15.6 standard for medium access...
A compact testbed for real-time UWB performance evaluation in terms of un-coded bit-error rate is presented. Both the transmitter and the receiver are realized in form of a small PCB. This testbed represents a very versatile tool for the evaluation of IR-UWB as physical layer for various wireless technologies. It operates in the frequency range from 3.1–5.0 GHz with a maximum data rate of 10 MBit/s...
For impulse radio ultra wideband (IR-UWB) based wireless body area network (WBAN) systems, one of the significant challenges is to guarantee a reliable link for data transmission. For this purpose, in this paper, we develop a simple but effective virtual MIMO (VMIMO) based cooperative diversity scheme for a single antenna transmitter being aided by an amplify-and-forward (AF) relay. To the best of...
The IEEE 802.15.6 standard for short range communications in or around human body was published in February 2012. The wireless body area network (WBAN) standard characterizes both medium access control and physical layer (PHY) specifications. The medium access is disregarded here and the focus is on PHY definitions. There are three different PHY options defined in the standard. The interest in this...
Wireless Body Area Network (WBAN) plays an important role in real-time data gathering by on-body vital sensors for athletes in a sports training scenario. However, the 2.4 G Hz Industrial, Scientific and Medical (ISM) band, which is one of candidate frequency bands for WBAN, is not rich in diffraction, so when a man putting on on-body sensor nodes and a BAN coordinator takes different postures and...
The WBAN on-body multi-link radio channels at 2.4 GHz were investigated. A wearable channel sounding system using commercial off-the-shelf Zigbee radios capable of continuous, prolonged and synchronized measurement has been developed. The measured channels were statistically analyzed to identify the potential cooperator nodes for two hop relaying in a star topology WBAN. This will be useful in designing...
This paper proposes and investigates an novel hybrid ARQ type of error control scheme using Weldon's ARQ in order to satisfy different requirement of QoS in medical and nonmedical data for wireless body area networks (WBANs). Although an international standard of WBANs has been established as IEEE802.1S.6 in February 2012, its optional hybrid ARQ scheme has not properly designed so that error detecting...
In this paper, a type-I hybrid automatic-repeat-request (ARQ) scheme based on the (15,10) shortened Hamming code with the Bahl, Cocke, Jelinek, and Raviv (BCJR) decoding algorithm is studied to suppress the transmit energy of bio-sensors in wireless body area networks (WBANs) by minimizing retransmission rate. The bit-error-rate is used as a reliability-based criterion to realize a flexible block-level...
Wireless capsule endoscopy (WCE) is a device used to inspect the gastrointestinal (GI) track. This technology is noninvasive compared to other methods that are traditionally adopted in the examination of GI track. From the physicians' point of view, the WCE is a favorable approach because of its efficiency and accuracy. In this paper, a new discriminant mechanism of bleeding regions is proposed based...
This paper investigated two kinds of design of implant antennas in ultra wide-band (UWB) low-band (3.4–4.8 GHz) for capsule endoscopes. First, two kinds of hemispherical antennas, one has a helical structure and the other has a loop structure, were designed. The hemispherical antennas match for the shape of capsule endoscopes. The reflection coefficient S11 and the directivity of the hemispherical...
Recent developments in wireless radio technology can enhance the clinical diagnosis for patients with gastroenterological disorders. Capsule endoscopes help to examine hard-to-reach parts of the gastrointestinal tract with significantly less discomfort for the patient than traditional endoscopic methods based on the insertion of flexible tubes. A capsule endoscope is an electronic device the size...
We propose a technology for megahertz-band near field coupling communication using a communication path between a transceiver (TRX) on the surface of the human body (Wearable TRX) and a TRX embedded in the environment (Embedded TRX). We embedded a transceiver (In-body TRX) in a phantom that had the same electrical properties as those of the human body to apply this technology to the healthcare and...
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