Global ETD Search

1	Wearable Electrically Small Resonant Loops for Seamless Motion Capture and Wireless Body Area Networks (WBANs) Mishra, Vigyanshu January 2021 (has links) No description available. Electrical Engineering Electromagnetism motion capture wearables wireless body area networks (WBANs)
2	Orthogonal Codes for CDMA-based Asynchronous Medical Wireless Body Area Networks (WBANs) Tawfiq, Ali 27 November 2012 (has links) The presented work considers a CDMA-based Wireless Body Area Network (WBAN) where multiple biosensors communicate simultaneously to a central node in an asynchronous fashion. The asynchronous nature of the WBAN introduces Multiple Access Interference (MAI). To combat this problem, presented is a methodology that uses a set of cyclically orthogonal spreading codes extracted from the Walsh-Hadamard matrix. When using the Cyclic Orthogonal Walsh-Hadamard Codes (COWHC) as spreading codes in the CDMA-based WBAN, the cyclic orthogonality property helps mitigate MAI amongst the on-body sensors. Presented is an ideal communication system that is most effective at mitigating MAI in proactive WBANs. The work illustrates the system optimality and effectiveness at mitigating MAI by studying the sensitivity to packet-loss through simulating the link Bit Error Rate (BER) performance. It is shown that the proposed design with COWHC, a Rayleigh flat-fading channel, BPSK modulation and a conventional receiver produce optimum MAI mitigation. Wireless Body Area Networks (WBANs) Medical Networks Code Division Multiple Access (CDMA) Orthogonal Codes Body Sensor Networks (BSNs) 0537 0541 0544
3	Orthogonal Codes for CDMA-based Asynchronous Medical Wireless Body Area Networks (WBANs) Tawfiq, Ali 27 November 2012 (has links) The presented work considers a CDMA-based Wireless Body Area Network (WBAN) where multiple biosensors communicate simultaneously to a central node in an asynchronous fashion. The asynchronous nature of the WBAN introduces Multiple Access Interference (MAI). To combat this problem, presented is a methodology that uses a set of cyclically orthogonal spreading codes extracted from the Walsh-Hadamard matrix. When using the Cyclic Orthogonal Walsh-Hadamard Codes (COWHC) as spreading codes in the CDMA-based WBAN, the cyclic orthogonality property helps mitigate MAI amongst the on-body sensors. Presented is an ideal communication system that is most effective at mitigating MAI in proactive WBANs. The work illustrates the system optimality and effectiveness at mitigating MAI by studying the sensitivity to packet-loss through simulating the link Bit Error Rate (BER) performance. It is shown that the proposed design with COWHC, a Rayleigh flat-fading channel, BPSK modulation and a conventional receiver produce optimum MAI mitigation. Wireless Body Area Networks (WBANs) Medical Networks Code Division Multiple Access (CDMA) Orthogonal Codes Body Sensor Networks (BSNs) 0537 0541 0544
4	Providing QoS in Autonomous and Neighbor-aware multi-hop Wireless Body Area Networks Iyengar, Navneet 15 October 2015 (has links) No description available. Computer Science Wireless Body Area Networks - WBANs Quality of Service - QoS Reactive Media Access Control Multi-hop network topology

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