Academic Press Library In Biomedical Applications Of Mobile And Wireless Communications Wireless Uwb Body Area Networks
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Academic Press Library In Biomedical Applications Of Mobile And Wireless Communications Wireless Uwb Body Area Networks
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Author : Matti Hamalainen
language : en
Publisher: Academic Press
Release Date : 2014-03-05
Academic Press Library In Biomedical Applications Of Mobile And Wireless Communications Wireless Uwb Body Area Networks written by Matti Hamalainen and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-03-05 with Science categories.
Wireless sensor and body area networks (WSN and WBAN respectively) have been seen as a future way to monitor humans' psycho-physiological signs remotely. There are a number of standards that could be used for building WBAN sytems. However, wireless UWB networks based on IEEE 802.15.4a offer the advantages of a large frequency range and low power spectral density, making it suitable for both WSNs and WBANs used for medical applications. The technology has matured sufficiently that it can be used to develop products for the marketplace. This book presents how the IEEE802.15.4-2011 (former IEEE802.15.4a) can be used in wireless body area networks (WBAN) for healthcare and welfare related applications. It gives a short overview on the IEEE802.15.4 family and then gives details of IEEE802.15.4-2011 based solutions. - Presents how the IEEE802.15.4-2011 (former IEEE802.15.4a) can be used in wireless body area networks (WBAN) for healthcare and welfare related applications - Gives a short overview on the IEEE802.15.4 family - Gives details of IEEE802.15.4-2011 based solutions
Body Area Networks Using Ieee 802 15 6
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Author : Marco Hernandez
language : en
Publisher: Academic Press
Release Date : 2014-03-21
Body Area Networks Using Ieee 802 15 6 written by Marco Hernandez and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-03-21 with Science categories.
The market of wearable wireless medical sensors is experiencing a rapid growth and the associated telecommunications services for the healthcare sector are forecast to further increase in the next years. Medical body area networks (MBANs) allow the mobility of patients and medical personnel by facilitating the remote monitoring of patients suffering from chronic or risky diseases. Currently, MBANs are being introduced in unlicensed frequency bands, where the risk of mutual interference with other electronic devices radiating in the same band can be high. Thus, coexistence is an issue on which the research scientists have dedicated much effort. Ultra wideband (UWB) signals offer many advantages to MBANs, and some features of this technology can be exploited for effective implementation of services. UWB can help in several aspects, like spectrum efficiency, energy consumption and coexistence. This book discusses the main aspects, and, in particular, the coexistence, of MBANs based on the IEEE 802.15.6 Standard using UWB physical layer. - A exhaustive description of body area networks using IEEE802.15.4 technologies, providing an in-depth understanding of how the overall system works - Provides understanding and insight on the use of ultra wide band technologies for the physical layer of body area networks; low power consumption and coexistence are investigated - Includes services, methodologies and results related to link-level and system-level evaluations of body area networks
Ultra Wideband Wireless Body Area Networks
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Author : Kasun Maduranga Silva Thotahewa
language : en
Publisher: Springer Science & Business
Release Date : 2014-04-17
Ultra Wideband Wireless Body Area Networks written by Kasun Maduranga Silva Thotahewa and has been published by Springer Science & Business this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-17 with Technology & Engineering categories.
This book explores the design of ultra wideband (UWB) technology for wireless body-area networks (WBAN). The authors describe a novel implementation of WBAN sensor nodes that use UWB for data transmission and narrow band for data reception, enabling low power sensor nodes, with high data rate capability. The discussion also includes power efficient, medium access control (MAC) protocol design for UWB based WBAN applications and the authors present a MAC protocol in which a guaranteed delivery mechanism is utilized to transfer data with high priority. Readers will also benefit from this book’s feasibility analysis of the UWB technology for human implant applications through the study of electromagnetic and thermal power absorption of human tissue that is exposed to UWB signals.
Co Operative And Energy Efficient Body Area And Wireless Sensor Networks For Healthcare Applications
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Author : Akram Alomainy
language : en
Publisher:
Release Date : 2014
Co Operative And Energy Efficient Body Area And Wireless Sensor Networks For Healthcare Applications written by Akram Alomainy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Antennas (Electronics) categories.
Ultra Wideband And 60 Ghz Communications For Biomedical Applications
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Author : Mehmet R. Yuce
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-10-16
Ultra Wideband And 60 Ghz Communications For Biomedical Applications written by Mehmet R. Yuce and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-16 with Medical categories.
This book investigates the design of devices, systems, and circuits for medical applications using the two recently established frequency bands: ultra-wideband (3.1-10.6 GHz) and 60 GHz ISM band. These two bands provide the largest bandwidths available for communication technologies and present many attractive opportunities for medical applications. The applications of these bands in healthcare are wireless body area network (WBAN), medical imaging, biomedical sensing, wearable and implantable devices, fast medical device connectivity, video data transmission, and vital signs monitoring. The recent technological advances and developments proposed or used in medicine based on these two bands are covered. The book introduces possible solutions and design techniques to efficiently implement these systems in medical environment. All individual chapters are written by leading experts in their fields. Contributions by authors are on various applications of ultra-wideband and the 60 GHz ISM band including circuit implementation, UWB and 60 GHz signal transmission around and in-body, antenna design solution, hardware implementation of body sensors, UWB transceiver design, 60 GHz transceiver design, UWB radar for contactless respiratory monitoring, and ultra-wideband based medical Imaging. The book will be a key resource for medical professionals, bio-medical engineers, and graduate and senior undergraduate students in computer, electrical, electronic and biomedical engineering disciplines.
13th Eai International Conference On Body Area Networks
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Author : Chika Sugimoto
language : en
Publisher: Springer Nature
Release Date : 2020-03-03
13th Eai International Conference On Body Area Networks written by Chika Sugimoto and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-03 with Technology & Engineering categories.
The papers in this proceeding discuss current and future trends in wearable communications and personal health management through the use of wireless body area networks (WBAN). The authors posit new technologies that can provide trustworthy communications mechanisms from the user to medical health databases. The authors discuss not only on-body devices, but also technologies providing information in-body. Also discussed are dependable communications combined with accurate localization and behavior analysis, which will benefit WBAN technology and make the healthcare processes more effective. The papers were presented at the 13th EAI International Conference on Body Area Networks (BODYNETS 2018), Oulu, Finland, 02-03 October 2018.
A System Concept For Ultra Wideband Uwb Body Area Networks
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Author : Thomas Zasowski
language : en
Publisher:
Release Date : 2007
A System Concept For Ultra Wideband Uwb Body Area Networks written by Thomas Zasowski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Wireless body area networks have recently gained a lot of interest due to multiple possible applications such as wireless health monitoring or wearable computing. Because of the rather simple hardware realizations and the energy efficiency, ultra wideband (UWB) communication has become one promising technology for the use in wireless body area networks (BAN). After pointing out the motivation of this work and highlighting its contribution, a definition of body area networks is presented as well as a brief introduction on UWB. There, the main promises of UWB communications are presented as well as the principles of some typical receiver structures for UWB. Since UWB communication at the human body is a brand new topic, channel measurements at the human body are performed. The frequency range for these measurements is chosen from 2 to 8 GHz. Based on 1100 channel measurements a channel model for the UWB BAN is derived. Using the Akaike information criterion (AIC) it is shown that the channel decays over the time and that the channel taps are log-normal distributed. The channel at the head is of particular interest as most human communication organs such as mouth, ears, and eyes are located there. Therefore, the ear-to-ear link, which can be regarded as a worst case scenario at the head due to the missing line-of-sight component, is considered to specify the impact of the channel on the system design. When considering the ear-to-ear link it is shown by means of theory, simulations, and measurements that the direct transmission through the head is attenuated so much that it is negligible. Therefore, antennas should be designed in a way that they do not radiate into the body but away from it or along its surface. Moreover, it is shown that the channel is robust against distance variations between the antenna and the skin, and that reflections and absorptions are caused by the body. For the ear-to-ear link the antennas should be placed behind the ears to get the smallest channel attenuations. From the measurements it can also be observed that the main energy of the channel impulse response is contained in a very small time window. Thus, non-coherent receivers with a short integration duration can capture almost the whole energy of the channel. Since UWB systems are a secondary spectrum user, the impact of existing wireless services on UWB is investigated as well. Due to the low transmit power not only the in-band but also the out-of-band interferers are harmful for UWB transmission. Based on frequency-domain and time-domain measurements it is shown that interference not close to the UWB device can be handled by using filters. However, this is not sufficient enough if an interferer is in close vicinity of the UWB device. Therefore, the temporal cognitive medium access is presented to avoid the interference from burst-wise transmitting devices. There, the UWB system listens if the channel is occupied by an interferer and it transmits only in case that no other system is active at the same time. For such a temporal cognitive MAC an expression is given to calculate the optimum UWB packet length. Assuming different interference scenarios, the packet lengths are evaluated. Moreover, it is shown that reasonable usable idle times can be achieved, which the UWB device can use for transmission, and strict latency time requirements can be met. ALOHA, 1-persistent CSMA, and non-persistent CSMA are considered as access schemes for the performance evaluation of the temporal cognitive MAC. For evaluation, two different cases are distinguished, with and without bandpass filter at the UWB receiver. It is shown that a UWB device with bandpass filter that uses the temporal cognitive MAC in conjunction with non-persistent CSMA has low packet error rates below 102 for up to about 15 active UWB links. Due to complexity reasons non-coherent receivers are the most promising solution for the use in UWB devices. Hence, the focus in this thesis lies on the energy detector and the transmitted reference receiver, which have both the same performance. Furthermore, the maximum likelihood receivers in the presence of inter-symbol interference are derived for binary pulse position modulation and transmitted reference pulse amplitude modulation assuming partial channel state information. The maximum likelihood receivers in the presence of a co-channel interference are calculated for the transmitted reference PAM as well. A family of maximum likelihood receivers is also derived for the transmitted reference pulse interval amplitude modulation, which is a combination of pulse position modulation and transmitted reference pulse amplitude modulation. The performance of all these receiver structures is evaluated by means of bit error rate simulations. The simulations are performed by using channels with independent and identically-distributed channel taps and exponential decaying channels as well as by using the BAN channel model. For all these receiver families a trade-off between performance and complexity is observed. Assuming a higher level of channel state information the performance improves while the complexity increases. The receiver structures with knowledge of the average power delay profile are recommended for the use in wireless BAN. These receiver structures exhibit for most channels better performance than the ones without channel state information, however, they require only moderately higher complexity. Furthermore, the receivers with knowledge of the average power delay profiler are less sensitive to the chosen integration duration, since the weighting can be regarded as choosing a variable integration duration. Finally, recommendations for a UWB BAN system are given and conclusions are presented.
Power Efficient Ultra Wideband Based Wireless Communication For Wireless Body Area Network Applications
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Author : Kasun Thotahewa
language : en
Publisher:
Release Date : 2014
Power Efficient Ultra Wideband Based Wireless Communication For Wireless Body Area Network Applications written by Kasun Thotahewa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Ultra-wideband (UWB) is a lucrative wireless technology for Wireless Body Area Network (WBAN) applications requiring a power restricted operation, high data rate and high level of miniaturisation. An Impulse Radio-UWB (IR-UWB) system transmits data by means of short duration pulses. Because of the pulse-based nature of this data transmission, less-complex modulation schemes, such as Pulse Position Modulation (PPM) and On-Off Keying (OOK), can be used in IR-UWB based systems resulting in significant power savings. Because of the simplicity of pulse generation, IR-UWB transmitters require a reduced hardware complexity compared to other candidates such as Orthogonal Frequency Division Multiplexing (OFDM) based UWB, enabling a low form factor and improved power efficiency. This dissertation contributes to the state of the art in the IR-UWB technology for WBAN applications in three major areas, namely: •Power efficient Medium Access Control (MAC) protocol design for IR-UWB based WBAN applications.•Development of a low-power sensor platform and evaluation for on-body communication.•Feasibility analysis of the IR-UWB technology for human implant applications through study of the electromagnetic and thermal effects caused by UWB signals.Although IR-UWB transmitters provide excellent benefits, such as high data rate transmission, low power consumption and simple hardware implementation, IR-UWB receivers remain a bottleneck for the use of IR-UWB technology in WBAN applications because of the following reasons. Firstly, IR-UWB receivers are complex in design and consume excessive amount of power. Secondly, the synchronisation of IR-UWB pulses at the receive stage using low power front-end circuitry is a major difficulty that restricts the use of IR-UWB receivers in WBAN applications. An IR-UWB based communication system has to be designed in a manner such that it enhances the advantages provided by IR-UWB transmitters while avoiding the complexities introduced by IR-UWB receivers. In order to achieve this objective, this dissertation presents a dual band communication system that uses IR-UWB for data transmission from sensor nodes while using narrow band technology for data reception. The MAC protocol plays a vital role in determining the data transmission efficiency of IR-UWB-based WBAN applications. Unlike in wireless narrow band applications, MAC protocols for IR-UWB applications should be designed in a manner so as to incorporate the unique advantages provided by the physical layer properties of IR-UWB signals. This dissertation presents the design and evaluation of a new dual band MAC protocol for WBAN sensor nodes. This MAC protocol improves the advantages provided by IR-UWB signals, such as high data rate transmission and low power operation, while avoiding the complexities introduced by IR-UWB reception at the sensor node end. In addition, data priority is taken into consideration during the design of the MAC protocol and a guaranteed delivery mechanism is utilised to transfer high priority data. The performance of the suggested MAC protocol is analysed extensively using simulations in terms of critical parameters, such as packet error rate, throughput, packet delay and power consumption. These simulation studies have provided optimised design parameters for hardware implementation of sensor nodes that use the proposed MAC protocol for WBAN applications.Although IR-UWB has been identified as a viable wireless technology for WBAN applications, there are no full implementations of low-power and small size IR-UWB sensor platforms for healthcare monitoring applications in both commercial domain and research domain. This dissertation presents the implementation and evaluation of a complete communication platform for WBAN applications that includes sensor nodes, coordinator nodes and interfacing computer software. In order to overcome the limitations created by the use of IR-UWB receivers in IR-UWB based sensor platforms, this dissertation presents an implementation method for WBAN sensor nodes that uses IR-UWB for data transmission from sensor nodes to coordinator nodes (up-link) and a narrow band link to receive control messages from coordinator nodes to sensor nodes (down-link). This unique technique provides the means of achieving low-power consuming sensor nodes with high data rate capability. Wireless communication for implantable devices is another potential area for the use of the IR-UWB technology in WBAN applications. Implantable systems, such as neural recording systems and wireless endoscopy devices, require high data rates, low power consumption and small form factor. These requirements can be fulfilled by the use of IR-UWB technology. This dissertation demonstrates the feasibility of the IR-UWB technology for implant applications through the study of electromagnetic and thermal power absorption of human tissue that is exposed to IR-UWB signals. These studies are conducted through finite element simulations using human body models. In addition, the path loss of UWB signals for various implant applications, such as neural recording units and capsule endoscopy systems, are studied using numerical modelling techniques and provides a predictive model that can be used as a guide in designing IR-UWB systems for implant applications.The findings of this research contribute to the improvement of wireless healthcare monitoring systems by introducing a high data rate, low power and efficient communication mechanism. The dual band sensor nodes that are developed as the final product of this research are capable of operating at scalable data rates up to 5 Mbps with a power consumption as low as 11 nJ/bit. The unique features of the MAC protocol suggested in this dissertation enable the dual band communication system to operate in varying channel conditions with a controllable BER around 10-4. Simulation based analysis carried out in order to investigate the feasibility of IR-UWB for implant communication shows that it is possible to set the IR-UWB transmit power in the in-body channel at a higher level than the FCC spectral mask such that tissue power absorption levels fall within the regulatory levels while outdoor power levels meet the FCC spectral requirements. These peak transmit power levels depend on the position of the implant within the human body. The path loss analysis carried out for UWB based Wireless Capsule Endoscopy (WCE) devices shows an average path loss of 80 dB for an in-body propagation distance of 80mm.
Advances In Body Centric Wireless Communication
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Author : Qammer H. Abbasi
language : en
Publisher:
Release Date : 2016
Advances In Body Centric Wireless Communication written by Qammer H. Abbasi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Computer networks categories.
Body centric wireless networking and communications is an emerging 4G technology for short (1-5 m) and very short (below 1 m) range communications systems, used to connect devices worn on (or in) the body, or between two people in close proximity. It has great potential for applications in healthcare delivery, entertainment, surveillance, and emergency services. This book brings together contributions from a multidisciplinary team of researchers in the field of wireless and mobile communications, signal processing and medical measurements to present the underlying theory, implementation challenges and applications of this exciting new technology. Topics covered include: diversity and cooperative communications in body area networks; ultra wideband radio channel characterisation for body-centric wireless communication; sparse characterisation of bodycentric radio channels; antenna / human body interactions in the 60 GHz band; antennas for ingestible capsule telemetry; in vivo wireless channel modelling; diversity and MIMO for efficient front-end design of body-centric wireless communications devices; on-body antennas and radio channels for GPS applications; textile substrate integrated waveguide technology for the next-generation wearable microwave systems; ultra wideband body-centric networks for localisation and motion capture application; down scaling to the nano-scale in body-centric nano-networks; and the road ahead for body-centric wireless communication and networks.
Wireless Body Area Networks
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Author : Mehmet R. Yuce
language : en
Publisher: CRC Press
Release Date : 2011-12-06
Wireless Body Area Networks written by Mehmet R. Yuce and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-12-06 with Computers categories.
The book provides a comprehensive overview for the latest WBAN systems, technologies, and applications. The chapters of the book have been written by various specialists who are experts in their areas of research and practice. The book starts with the basic techniques involved in designing and building WBAN systems. It explains the deployment issue