Experimental Study on Real-Time Wireless Networks for Motion Control of Manipulator and Mobile Platform in Industrial Robotics

The integration of ICT with manufacturing technologies is a key step towards intelligent manufacturing. The goal is to investigate some industrial application scenarios and evaluate the performance of selected wireless technologies. A recently standardized industrial wireless technology, WIA-FA, has shown good performance in practical deployments. Two experimental applications are considered: path planning testing with different wireless technologies and CANbus bridging with WIA-FA.openEmbargo temporaneo per motivi di segretezza e/o di proprietà dei risultati e informazioni di enti esterni o aziende private che hanno partecipato alla realizzazione del lavoro di ricerca relativo alla tes

Designing Wireless Networks for Delay-Sensitive Internet of Things

Internet of Things (IoT) applications have stringent requirements on the wireless network delay, but have to share and compete for the limited bandwidth with other wireless traffic. Traditional schemes adopt various QoS-aware traffic scheduling techniques, but fail when the amount of network traffic further increases. In addition, CSMA with collision avoidance (CSMA/CA) mechanism enables the coexistence of multiple wireless links but avoids concurrent transmissions, yielding severe channel access delay on the delay-sensitive traffic when the channel is busy. To address the aforementioned limitations, we present two novel designs of wireless side channel, which operate concurrently with the existing wireless network channel without occupying extra spectrum, but dedicates to real-time traffic. Our key insight of realizing such side channel is to exploit the excessive SNR margin in the wireless network by encoding data as patterned interference. First, we design such patterned interference in form of energy erasure over specific subcarriers in OFDM systems. Delay-sensitive messages can be delivered simultaneously along with other traffic from the same transmitter, which reduces the network queuing delay. Furthermore, we propose EasyPass, another side channel design that encodes data in the same OFDM scheme as being used by the main channel, but using weaker power and narrower frequency bands. By adapting the side channel's transmit power under the main channel's SNR margin, the simultaneous main channel transmission would suffer little degradation. EasyPass reduces the channel access delay by providing extra transmission opportunities when the channel is occupied by other links. Last, we present a novel modulation design that transforms the choices of link rate adaptation from discrete to continuous. With minimum extra overhead, it improves the network throughput and therefore reduces the network delay

5G Outlook – Innovations and Applications

5G Outlook - Innovations and Applications is a collection of the recent research and development in the area of the Fifth Generation Mobile Technology (5G), the future of wireless communications. Plenty of novel ideas and knowledge of the 5G are presented in this book as well as divers applications from health science to business modeling. The authors of different chapters contributed from various countries and organizations. The chapters have also been presented at the 5th IEEE 5G Summit held in Aalborg on July 1, 2016. The book starts with a comprehensive introduction on 5G and its need and requirement. Then millimeter waves as a promising spectrum to 5G technology is discussed. The book continues with the novel and inspiring ideas for the future wireless communication usage and network. Further, some technical issues in signal processing and network design for 5G are presented. Finally, the book ends up with different applications of 5G in distinct areas. Topics widely covered in this book are: • 5G technology from past to present to the future• Millimeter- waves and their characteristics• Signal processing and network design issues for 5G• Applications, business modeling and several novel ideas for the future of 5

5G Outlook – Innovations and Applications

5G Outlook - Innovations and Applications is a collection of the recent research and development in the area of the Fifth Generation Mobile Technology (5G), the future of wireless communications. Plenty of novel ideas and knowledge of the 5G are presented in this book as well as divers applications from health science to business modeling. The authors of different chapters contributed from various countries and organizations. The chapters have also been presented at the 5th IEEE 5G Summit held in Aalborg on July 1, 2016. The book starts with a comprehensive introduction on 5G and its need and requirement. Then millimeter waves as a promising spectrum to 5G technology is discussed. The book continues with the novel and inspiring ideas for the future wireless communication usage and network. Further, some technical issues in signal processing and network design for 5G are presented. Finally, the book ends up with different applications of 5G in distinct areas. Topics widely covered in this book are: • 5G technology from past to present to the future• Millimeter- waves and their characteristics• Signal processing and network design issues for 5G• Applications, business modeling and several novel ideas for the future of 5