tailieunhanh - Báo cáo toán học: " Special issue on “Towards the connected body: advances in body communications”"

Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học được đăng trên tạp chí toán học quốc tế đề tài: Special issue on “Towards the connected body: advances in body communications” | De Doncker et al. EURASIP Journal on Wireless Communications and Networking 2011 2011 203 tD EURASIP Journal on http content 2011 1 203 Wireless Communications and Networking a springeropen Journal EDITORIAL Open Access Special issue on Towards the connected body advances in body communications Philippe De Doncker 1 Jun-Ichi Takada2 Arie Reichman3 and Dries Neirynck4 Body area networks BANs are quickly becoming a key technology for wireless communications. They consist of body-worn or implanted sensors that wirelessly communicate leading either to in- or on-body communications between sensors or to off-body communications with devices located in the close vicinity. ban s potential applications include among others m-health information systems collecting vital parameters in real-time high-speed connections over the body surface for multimedia transfers or human body interactions with its environment for augmented reality devices. Several technologies are currently under development in order to enable these communications either narrowband including RFID technologies or ultra-wideband IR-UWB . The latter could be advantageously coupled with positioning algorithms for simultaneous body motion capture. However in practice numerous challenges still need to be tackled in order to make BANs viable. The sensor s autonomy size and cost are critical parameters which can only be optimized by adopting an interdisciplinary approach where the propagation phenomena the coding or relaying strategies the MAC protocols and the network topology are strongly interrelated. The coexistence issue with other networks also seems to be crucial especially in the hospital environment. This special issue goes through all the layers of telecommunication systems dedicated to body communications from channel models for on- or off-body communications to global telecare systems based on Bluetooth smartphones and GPS. The article Experimental characterization of an UWB .

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