SoftCast

The focus of this demonstration is the performance of streaming video over the mobile wireless channel. We compare two schemes: the standard approach to video which transmits H.264/AVC-encoded stream over 802.11-like PHY, and SoftCast -- a clean-slate design for wireless video where the source transmits one video stream that each receiver decodes to a video quality commensurate with its specific instantaneous channel quality

ACUTA Journal of Telecommunications in Higher Education

In This Issue Classroom Technology: Practical Approaches Synchronous Blended Learning Using Videoconferencing over lP Planning for Classroom Audiovisual Technologies Optimization Tools lmprove Bandwidth Bottom Line New Technologies Redefine the Classroom WiMax Facing the WMAN Challenge Mobility and the New Student lntegrating lnstructional and Network Technologies for Distance Education lnstitutional Excellence Award Honorable Mention Interview President\u27s Message From the Executive Director Here\u27s My Advic

Analisi delle tecnologie radio per il progetto di un sistema di comunicazione terra-bordo in ambito portuale

Il sempre maggior numero di navi in circolazione, con il conseguente aumento del flusso di traffico in ingresso e in uscita dai porti, sta portando il modello tradizionale di architettura portuale ad avvicinarsi a quello degli aeroporti, che garantisce sicurezza ed efficienza grazie soprattutto a sofisticati sistemi di monitoraggio degli aeromobili e dei loro spostamenti. Cresce dunque la necessità di progettare e costruire tutta una categoria di sistemi di controllo del traffico marittimo in grado di fornire agli utenti gli strumenti necessari alla gestione efficiente delle procedure di ingresso e uscita dai porti di ogni tipologia di imbarcazione

Research and Creative Activity, July 01, 2021-June 30, 2022: Major Sponsored Programs and Faculty Accomplishments in Research and Creative Activity, University of Nebraska-Lincoln

Foreword by Bob Wilhelm, Vice Chancellor for Research and Economic Development: This booklet highlights successes in research, scholarship and creative activity by University of Nebraska–Lincoln faculty during the fiscal year running July 1, 2021, to June 30, 2022. It lists investigators, project titles and funding sources on major grants and sponsored awards that were active during the year; fellowships and other recognitions and honors bestowed on our faculty; books, chapters and creative literature published by faculty; performances, exhibitions and other examples of creative activity; patents and licensing agreements; and conference presentations. In recognition of the important role faculty play in the undergraduate experience at Nebraska, this booklet notes the students and mentors participating in the Undergraduate Creative Activities and Research Experience (UCARE) and the First-Year Research Experience (FYRE) programs. Increasing impact through research and creative activity is one of the six core aims of the N2025 strategic plan. A few measurements of progress made this year: • UNL achieved a record $321 million in total research expenditures in FY 2021, a 31• Our faculty earned 1,560 sponsored research awards in FY 2021. N2025 aims also include contributing to economic growth throughout the state and broadening Nebraska’s engagement in community, industry and global partnerships. These are some measures of our efforts to commercialize university-sponsored research and partner with industry: • Nebraska Innovation Campus created 2,127 jobs statewide. The cumulative impact of NIC investments totals$328.9 million. • Industry sponsorship supported $19.8 million in research expenditures. • NUtech Ventures brought in$6.36 million in licensing income. I want to thank the Nebraska Research community for its willingness to collaborate, mentor and redefine success in research and creative activity. Your leadership is paving the way for future growth and providing an unparalleled educational experience. At Nebraska, it is the people who make the place. Because of your dedication and expertise, Nebraska is positioned to solve some of the world’s most wicked problems. I am impressed by your commitment to the Grand Challenges initiative, a strategic investment of up to $40 million over four years for projects in the high-impact areas of anti-racism and racial equity; climate resilience; early childhood education and development; health equity; quantum science and engineering; science and technology literacy for society; and sustainable food and water security. More than 180 faculty, staff and students are contributing to projects funded in Year 1. Another N2025 aim is to create a climate that emphasizes, prioritizes and expands inclusive excellence and diversity. In the Office of Research and Economic Development, we continue to seek ways to remove barriers to success and ensure all Nebraska researchers have the resources they need to thrive. Thank you for the feedback you’ve thoughtfully provided. I am pleased to present this record of accomplishments. Contents Awards of$5 Million or More Awards of $1 Million to$4,999,999 Awards of $250,000 to$999,999 Early Career Awards Arts and Humanities Awards of $250,000 or More Arts and Humanities Awards of$50,000 to $249,999 Arts and Humanities Awards of$5,000 to $49,999 Patents License Agreements National Science Foundation Innovation Corps Teams Creative Activity Books Recognitions and Honors Journal Articles Conference Presentations UCARE and FYRE Projects Glossar

Scalable modulation for scalable wireless videocast

Abstract — In conventional wireless systems with layered architectures, the physical layer treats all data streams from upper layers equally and apply the same modulation and coding schemes. Newer systems such as Digital Video Broadcast start to introduce hierarchical modulation schemes with SuperPosition preCoding (SPC) and support data streams of different priorities. However, SPC requires specialized hardware and has high complexity beyond most existing handheld devices. We thus propose scalable modulation (s-mod) by reusing the current mainstream modulation schemes with software-based bit-remapping. In this paper, we study how to optimize the configuration of the PHY layer s-mod and coding schemes to maximize the utility of videos with Scalable Video Coding (SVC). Simulation results demonstrate significant performance gains using s-mod and the cross-layer optimization, indicating s-mod and SVC is a good combination for wireless video multicast and unicast. I