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Estimation of the aggregate interference is required in order to predict the performance of a wireless system in its working environment. Body Area Networks (BANs) for healthcare applications are becoming a reality, allowing patients to be monitored continuously without forcing them to stay in bed or in hospital. The increasing number of wireless medical devices makes the ISM (Industrial, Scientific...
Surgical instruments are sterilized and reused. The number of surgical instruments that must be managed can be up to 100 for one operation. Counting instruments before and after an operation and identifying each instrument when storing them in a container after sterilization are indispensable to patient safety, and in the past have required a great amount of hand labor. To improve efficiency, Shimane...
In this paper, detection of high-precision respiration rate and heart rate, by using low-band ultra wideband (UWB) signal is studied. In order to detect the high-precision biological information, two methods are proposed to reduce the background noise, using pre-measured ambient response without the human body, and evaluated with experiments.
Heterogeneous nature of Wireless Body Area Networks (WBANs) including different types of nodes, applications and environments sets great challenges for a routing protocol. We will present routing challenges set by WBAN and its applications, go through existing protocols and their flaws. In the end, we will give a novel routing protocol using different zones and fuzzy logic.
This paper describes a country level study on the impact of ICT level development, healthcare expenditures and eHealth policy establishment to public health outcomes, specifically Infant and Maternal Mortality rate (IMR & MMR), which is a key part of the Millennium Development Goals. As one of the few large sample studies connecting ICT and public health, we complement empirical results from existing...
Recently, studies on medical and health monitoring systems using wireless communications have been actively conducted. In the field of health monitoring systems, Wireless Body Area Network (WBAN) is one of the key technologies and its standardization activities have also been extensively carried out. As our previous work, we proposed an optimal QoS control scheme employing a multiplexing layer and...
DOCTOR'S EYE is a system for measuring a person's movement without using sensors attached to the body. Its sensing device is KINECT v1. This paper reports basic specifications and the sit-to-stand/stand-to-sit data measured. Recorded data show that DOCTOR'S EYE can be used to measure individual movement characteristics.
We present a reversible data hiding technique for digital medical images. The idea is to embed the header of the image or other data in the image itself, pursuing tamper-proofing capabilities and inseparability. In particular, the proposed data hiding technique using Least Significant Bits (LSBs) hides information into the Region of Interest (ROI) and preserves lost information in the Region of Non...
In this paper, we propose a novel approach which is called the Regularizing Multi-bands Common Spatial Patterns (RMCSP) that particularly used for processing motor-imagery based Electroencephalography (EEG) data in Brain-computer Interface (BCI). The usage of BCI is severely limited due to the inconvenience of large number of channels used in recording devices. Moreover, Common Spatial Patterns (CSP)...
We have developed a photoplethysmography (PPG)-based heart rate (HR) sensor [1], which is equipped with two sensors; one is a normal PPG sensor and the other is a motion artifact sensor. In the PPG-based HR sensor, applying an adaptive filter algorithm for the outputs from the two sensors, it can effectively cancel motion artifact induced by vigorous exercise. Breathing motion is also one of the main...
The use of wake-up receivers (WURs) in wireless body area networks (WBAN) has remarkable potential to improve energy efficiency. During the recent years, multiple WUR designs and architectures have been therefore proposed for WBANs and wireless sensor networks (WSN). Superregenerative oscillator (SRO) based architecture is inherently sensitive, which makes it an attractive choice for a WUR. It is...
Although the joint source and channel coding (JSCC) systems constructed from double protograph low-density parity-check (DP LDPC) codes has been demonstrated to possess good performance, especially when they are applied into the transmission of radiography images, where the frameworks of both transmitter and receiver still need to be further optimised for the sake of achieving bit error rate (BER)...
This paper proposes a new method that quantatively measures the effect of medical consultation recommendation. It uses a new transition probability model. The model is composed of 7 kinds of status related to a specific disease. The status is “no consultation”, “consultation”, “slight”, “moderate”, “serious”, “healthy”, and “secession”. The method estimates the transition probability between status...
The present paper examines on-body performance in the range of wireless body area network (WBAN) antennas by investigating a channel path gain, the applicability for launching creeping waves and a radiation pattern shape in the proximity of human tissues. The focus of the study is to compare the performance of the designed 3D antennas with an example of a planar antenna, of which the majority of the...
RF and microwaves as non-ionizing radiation energy are very safe in application of medicine, especially in diagnosis and treatment. Application of Magnetic Resonance Imaging (MRI) has been greatly progressing in medical diagnosis. Microwave techniques have a great potential to help to advance MRI techniques. In this paper, microwave reflection is studied to obtain blood glucose level and noninvasive...
Medical ICT is one of the most interesting and challenging research areas for both industry and academia. Wireless body area network (WBAN) applications for health-care systems are rapidly being developed and deployed. In an unlicensed frequency band like industrial, scientific and medical (ISM) band, WBANs will encounter tough competition for resources because several other wireless technologies...
This paper presents a polarization-controlled active antenna applied to BAN on-body communications. A primal objective is to achieve the enhancement of signal power, not only in downlink but also in uplink dynamic channels, between an access point mounted on the wrist and a sensor module attached to various locations on a human body. The proposed antenna is comprised of two orthogonal antennas, which...
Ultra wide band (UWB) microwave imaging has been proposed for detecting small malignant breast cancers and expected to detect breast cancers with safety, less-discomfort and accuracy for high resolution of UWB pulse. However, shape estimation for breast cancers has been remained as a challenge. In this paper, we propose an elliptical shape estimation method by nonlinear least-squares method in order...
A wireless capsule endoscope (WCE) is a promising medical device for diagnosis of digestive organs, which takes pictures inside digestive organs, such as large and small intestines and transmits them through implant wireless communications. In a realistic WCE scenario, it is important to precisely estimate the WCE location. Generally, the superiority of TOA-based localization over RSSI-based localization...
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