{"title":"An energy-efficient switching technique for 2-bit/cycle SAR ADCs","authors":"Dune-Ting Fan, Ren-Hao Yeh, Y. Chu, T. Tsai","doi":"10.1109/ISMICT.2015.7107521","DOIUrl":"https://doi.org/10.1109/ISMICT.2015.7107521","url":null,"abstract":"A new energy-efficient switching technique for 2bit /cycle successive approximation register (SAR) analog-to-digital converters (ADCs) is presented. The proposed switching technique achieves 97.91% less switching energy and 75% less total capacitance over the conventional architecture. A LSB correction method is also proposed to relax the accuracy requirement on the comparator. The prototype was designed in a TSMC 90-nm CMOS process technology. The post-layout simulation results show that the ADC achieves a SNDR of 59.83 dB, power consumption of 0.879 mW and FoM of 10.94 fJ /conversion-step at 100 MHz sampling rate with a 1 V supply voltage.","PeriodicalId":6624,"journal":{"name":"2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":"34 1","pages":"166-169"},"PeriodicalIF":0.0,"publicationDate":"2015-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88037121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ishtiak Al Mamoon, Islam A. K. M. Muzahidul, S. Baharun, S. Komaki, Ashir Ahmed
{"title":"Architecture and communication protocols for cognitive radio network enabled hospital","authors":"Ishtiak Al Mamoon, Islam A. K. M. Muzahidul, S. Baharun, S. Komaki, Ashir Ahmed","doi":"10.1109/ISMICT.2015.7107522","DOIUrl":"https://doi.org/10.1109/ISMICT.2015.7107522","url":null,"abstract":"This Wireless communication is a key technology to improve mobility and service flexibility for different e-health applications such as remote patient monitoring, telemedicine, mobile hospital information system, etc. However, due to the increasing number of wireless devices, in near future wireless healthcare services may face challenges on medical band and electromagnetic interferences (EMI) to biomedical devices. To mitigate these issues cognitive radio network supported healthcare service system for proper utilization of medical band and EMI-aware prioritized wireless access scheme to avoid malfunction of biomedical devices may be essential. Therefore, to support an efficient wireless healthcare services system in this paper we introduce a priority scheme for medical and non-medical devices. Based on this scheme, we then propose spectrum aware cluster-based network architecture and EMI-aware communication protocols for healthcare services. The proposed architecture enhances communication facilities in a heterogeneous healthcare system where the clustering scheme is divided into three subgroups: partial mesh topology for Cognitive Base Station (CBSs) to avoid single point failure, star topology for medical devices that are connected to cognitive base stations to enable medical devices to communicate via CBSs, and tree topology for non-medical devices that may be connected to CBSs via some other devices in an ad-hoc mode. The connected subgroups then form a communication highway to support efficient communication. Proposed EMI-aware communication protocols are: communication between Medical devices, non-medical devices, and admin center.","PeriodicalId":6624,"journal":{"name":"2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":"22 1","pages":"170-174"},"PeriodicalIF":0.0,"publicationDate":"2015-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86277710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Towards high on-body sensor node performance with the 3D antennas for IR-UWB WBANs","authors":"T. Tuovinen, M. Berg, M. Hämäläinen, J. Iinatti","doi":"10.1109/ISMICT.2015.7107511","DOIUrl":"https://doi.org/10.1109/ISMICT.2015.7107511","url":null,"abstract":"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 wearable radiators are comprised in the open literature. The designed antennas are optimized for the impulse radio ultra wideband (IR-UWB) WBANs and targeted for on-body sensor node purposes. The radiator structures have low profiles in the fundamental modes as λ/7 (discone), λ/10 (monopole with a bent ground) and λ/5 (monopole with a cylindrical ground). The antennas cover the Federal Communications Commission (FCC) UWB regulations. It was demonstrated that the 3D antennas can efficiently launch body's surface wave propagation along a body surface in the longitudinal direction and around a body. The improvement of several tens of decibels over a planar antenna is able to obtain by the proper on-body design with a dominant normal polarization.","PeriodicalId":6624,"journal":{"name":"2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":"37 1","pages":"121-125"},"PeriodicalIF":0.0,"publicationDate":"2015-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80541907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Regularizing multi-bands Common Spatial Patterns (RMCSP): A data processing method for brain-computer interface","authors":"Le Quoc Thang, C. Temiyasathit","doi":"10.1109/ISMICT.2015.7107524","DOIUrl":"https://doi.org/10.1109/ISMICT.2015.7107524","url":null,"abstract":"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) is a very well-known algorithm for its efficiency, but it just can extract the spatial information of the brain signals. To address these issues, we introduce the RMCSP method that exploits data in spectral, temporal and spatial domains in order to increase the classification accuracy in BCI. In addition, RMCSP is designed to handle EEG with small number of channels. To verify the efficacy of our approach, we rigorously tested the performances of the method in 17 subjects, from BCI competition datasets, in both two-class and four-class problems. Results show that RMCSP approach can outperform normal CSP method by nearly 10% in terms of median classification accuracy. It also enables us to significantly reduce the number of channels used in the datasets without decreasing the performances of the subjects.","PeriodicalId":6624,"journal":{"name":"2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":"27 1","pages":"180-184"},"PeriodicalIF":0.0,"publicationDate":"2015-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83498959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Automatic localization and segmentation of optic disc in fundus image using morphology and level set","authors":"Ting Yu, Yide Ma, Wen Li","doi":"10.1109/ISMICT.2015.7107527","DOIUrl":"https://doi.org/10.1109/ISMICT.2015.7107527","url":null,"abstract":"Optic disc (OD) localization and segmentation are important in developing systems for automated diagnosis of various serious ophthalmic pathologies. This paper presents a new, fast and robust methodology for fully automatic localization and segmentation of the optic disc in fundus images. This methodology locates the OD with a morphological approach based on the combination of vessel convergence and intensity. The boundary of the OD is extracted by using distance regularized narrowband level set evolution (DRLSE). This algorithm has been validated on three public databases. The location procedure has a high success rate of 99.52% in the cases averagely and the segmentation method improves the sensitivity and specificity to 99.92% and 96.49% respectively. The results confirm the superiority of the proposed method over the conventional ways.","PeriodicalId":6624,"journal":{"name":"2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":"8 3 1","pages":"195-199"},"PeriodicalIF":0.0,"publicationDate":"2015-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91182214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"New method measuring effect of medical consultation recommendation","authors":"S. Sakurai, Rumi Hayakawa, Hideki Iwasaki","doi":"10.1109/ISMICT.2015.7107517","DOIUrl":"https://doi.org/10.1109/ISMICT.2015.7107517","url":null,"abstract":"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 by analyzing both the medical examination data and the medical receipt data. It evaluates reactions of object members which are candidate participating in the program of medical consultation recommendation. The transition probability is adjusted by the reactions. This paper focuses on the diabetes as the target disease and applies the method to the data managed by Toshiba health insurance union. Lastly, it verifies the effect of the method based on the simulated result.","PeriodicalId":6624,"journal":{"name":"2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":"8 1","pages":"148-152"},"PeriodicalIF":0.0,"publicationDate":"2015-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81889543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tapani Koivukangas, Junnu Lukkari, J. Haapola, R. Kohno
{"title":"Streamlining medical device design development process from research laboratory to the market","authors":"Tapani Koivukangas, Junnu Lukkari, J. Haapola, R. Kohno","doi":"10.1109/ISMICT.2015.7107506","DOIUrl":"https://doi.org/10.1109/ISMICT.2015.7107506","url":null,"abstract":"The objective of this paper is to describe the common conformity assessment procedures to comply with the regulations in certifying devices for medical use. This paper also defines the main aspects of medical devices in general with common key differences between medical devices and consumer products. Furthermore, this paper highlights the role and importance of literature research in medical device development, particularly in shortening the time-to-market and in the certification process. Finally, this paper gives the researchers of institutes and universities suggestions on what could be taken into account at the very early phase of ideation of possible methods and products that are intended to be classified as a medical device.","PeriodicalId":6624,"journal":{"name":"2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":"48 1","pages":"98-102"},"PeriodicalIF":0.0,"publicationDate":"2015-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85278040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Interference mitigation method using orthogonal matched filter with modified Hermite pulse for UWB-BAN assuming multi-user and multi-system environment","authors":"Takumi Kobayashi, C. Sugimoto, R. Kohno","doi":"10.1109/ISMICT.2015.7107532","DOIUrl":"https://doi.org/10.1109/ISMICT.2015.7107532","url":null,"abstract":"An ultra wide-band (UWB) communication is used for medical information communication technology (MICT) as a dependable and safe communication technology. On the other hand, there are existing UWB systems that are not used for MICT. Generally these UWB systems use almost the same frequency band. Therefore they interfere to each other. In previous study, multiple access scheme using orthogonal pulse is proposed as a inter user interference free communication scheme. In this paper, we propose a mitigation method for inter-user interference and inter-system interference using combination of orthogonal pulse shape and orthogonal matched filter (OMF). The purposes of our system are; detect all signals of users in same UWB system; and reduce the unknown interference from other UWB system at the same time. The simulation results showed that the proposed system could detect the signals that were transmitted from same UWB system using orthogonal pulse set. Moreover, the proposed system could reduce the interference from unknown UWB system at the same time.","PeriodicalId":6624,"journal":{"name":"2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":"47 1","pages":"218-222"},"PeriodicalIF":0.0,"publicationDate":"2015-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75851798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Performance evaluation on transmit polarization diversity for implant UWB-IR communications","authors":"Yuto Shimizu, D. Anzai, Jianqing Wang","doi":"10.1109/ISMICT.2015.7107523","DOIUrl":"https://doi.org/10.1109/ISMICT.2015.7107523","url":null,"abstract":"An ultra wideband impulse radio (UWB-IR) technology is a potential candidate for implant body area networks (BANs), where wireless communications are established between inside and outside of a human body. The UWB-IR technology can accomplish low power consumption and high data rate with an extremely short pulse. However, due to its high frequencies, UWB-IR signals suffer from quite large attenuation in the implant communication link, which makes it difficult to achieve reliable communications. For achieving reliable communication, it is well known that a spatial diversity technique is efficient without any frequency extension. In the related works, several spatial receive diversity techniques for the implant communications have been so far discussed. In contrast, the diversity technique at transmitter side has been rarely discussed because of difficulty of the antenna miniaturization. In this paper, we pay attention to the fact that it is possible to further miniaturize the UWB antenna due to its high frequency, so that, we aim to develop a transmit polarization diversity antenna for implant UWB communications. Then, we investigate the performances of the developed transmit diversity antenna, including the S-parameters and correlation coefficient between each polarization, based on a finite difference time domain (FDTD) method. Finally, we evaluate the bit error rate (BER) performance for the transmit polarization diversity. The computer simulation results demonstrate the feasibility and effectiveness of the transmit diversity for the UWB-IR communications.","PeriodicalId":6624,"journal":{"name":"2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":"20 1","pages":"175-179"},"PeriodicalIF":0.0,"publicationDate":"2015-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78823701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Zone-based fuzzy routing for WBANs","authors":"Harri Viittala, M. Hämäläinen, J. Iinatti","doi":"10.1109/ISMICT.2015.7107505","DOIUrl":"https://doi.org/10.1109/ISMICT.2015.7107505","url":null,"abstract":"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.","PeriodicalId":6624,"journal":{"name":"2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":"144 1","pages":"93-97"},"PeriodicalIF":0.0,"publicationDate":"2015-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88081891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}