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[IEEE 2019 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD) - Ottawa, ON, Canada (2019.7.8-2019.7.12)] 2019 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD) - Design Strategy for Monolithically Integrated Photodetector and Improvement using Plasmonics
摘要： Mobile video surveillance applications are used widely nowadays. They offer real-time video monitoring for homes, offices, warehouses, airports, and so on with live and pre-recorded on-demand video streaming. Quality of service (QoS) remains a key challenge faced by most of these applications. In this article, we propose an architecture for mobile video surveillance applications with a guaranteed and differentiated QoS support. The architecture relies on the 3GPP 4G evolved packet core (EPC). The main components are the QoS enabler, media server, and machine-to-machine gateway and surveillance application. To demonstrate its feasibility, a proof of concept prototype has been implemented and deployed. We also took measurements to evaluate the performance. Several lessons were learned. For instance, multimedia frameworks must allow for buffering controls in media streaming to reduce live streaming delay. In addition, we have learned that publicly available materials related to the EPC prototyping platform we have used (i.e., OpenEPC) are scarce. This has made our prototyping task rather difficult.
关键词： machine-to-machine (M2M),evolved packet core (EPC),Video surveillance,4G
更新于2025-09-23 15:21:01
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[IEEE 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) - Chicago, IL, USA (2019.6.16-2019.6.21)] 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) - Guidelines for E-beam Induced Current Studies of Defects in Perovskite Solar Cells
摘要： Mobile video surveillance applications are used widely nowadays. They offer real-time video monitoring for homes, of?ces, warehouses, airports, and so on with live and pre-recorded on-demand video streaming. Quality of service (QoS) remains a key challenge faced by most of these applications. In this article, we propose an architecture for mobile video surveillance applications with a guaranteed and differentiated QoS support. The architecture relies on the 3GPP 4G evolved packet core (EPC). The main components are the QoS enabler, media server, and machine-to-machine gateway and surveillance application. To demonstrate its feasibility, a proof of concept prototype has been implemented and deployed. We also took measurements to evaluate the performance. Several lessons were learned. For instance, multimedia frameworks must allow for buffering controls in media streaming to reduce live streaming delay. In addition, we have learned that publicly available materials related to the EPC prototyping platform we have used (i.e., OpenEPC) are scarce. This has made our prototyping task rather dif?cult.
关键词： machine-to-machine (M2M),4G,Video surveillance,evolved packet core (EPC)
更新于2025-09-23 15:19:57
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Robust Design of Digital Circuits on Foil || Design Case: RFID Tags
摘要： In this chapter, we have presented the designs and technology evolutions that will allow thin-film electronics on plastic foil to fulfill the required specifications for EPC item-level tagging. In particular, we have shown that many of these specifications can be met. A 64-bit organic RFID tag has been elaborated; it is inductively coupled at a base carrier frequency of 13.56 MHz. The complexity of the chip has been increased to a 128-bit transponder chip. Also a basic ALOHA anti-collision protocol and WORM memory have been integrated. EPC-based data rates of 50 kb/s have been reached by downscaling of the technology. These data rates could also be met by using high-performing metal-oxide transistors or by the integration of diode-load or complementary logic. Recently, we demonstrated the possibility for plastic RFID tags to implement a bi-directional communication to realize an anti-collision protocol.
关键词： EPC,WORM memory,thin-film electronics,RFID,bi-directional communication,transponder chip,anti-collision protocol,organic electronics
更新于2025-09-04 15:30:14