2012 Meeting Archives

2012 Meeting Archives

Date: December 13, 2012, 6:00-8:00 p.m. CST

Title: Low Complexity Scalable Video Encoding

Speaker: Rashad Jillani, Encoding Engineer at AT&T Labs, Austin, Texas

Abstract:
In real-time multimedia systems, the coding performance of video encoders and decoders is limited by computational complexity. This talk presents research work to develop techniques to manage computational complexity of H.264/AVC and SVC video encoders. These techniques aim to provide significant complexity saving as well as a framework for efficient use of SVC.

This talk will provide the computational complexity of MB coding mode decision in H.264/AVC video encoder. Based on machine learning techniques, complexity reduction algorithms are proposed. It is shown that these algorithms can reduce the computational complexity of Intra MB coding with negligible loss of video quality.
A general framework is developed that applies to SVC and use this framework to adapt SVC bitstream by employing the low-complexity video encoding along with the input of video streaming constraints in order to adapt the bitstream. The proposed SVC based framework uses both objective low-complexity video encoding techniques and subjective saliency based video adaptation resulting in optimal use of network bandwidth.

The approaches described in this talk can not only reduce computational complexity of a video encoder, but also can manage the trade-off between complexity and distortion. These proposed algorithms are evaluated in terms of complexity reduction performance, rate-distortion performance and subjective and objective visual quality by experimental testing.

Speaker Bio:
Rashad works on the technical evaluation, integration, analysis, testing, of IPTV components such as encoders, decoders, and Video edge equipment. Rashad has degrees in Computer Science (MSc from IIU, Islamabad, Pakistan) and Computer Engineering (PhD, Florida Atlantic University, Boca Raton, FL, USA). This talk covers the doctoral research work. His areas of interest include, low complexity video encoding, mobile video adaptation and scalable video coding.
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Date: November 13, 2012; 6:00 – 8:00 pm

Title: 10X Beyond LTE-A – Business Case, Technologies, Challenges for Emerging 5G Networks

Abstract:
Capacity projections from the International Mobile Telecommunications (IMT) have become outdated even before the next generation, i.e., the 4th generation (4G), wireless communications systems have been widely deployed. This is due to the fairly recent explosion and uptake of smart phones and smart services anytime/everywhere, and the thus associated data requirements.The trend is clearly towards splitting indoors and outdoors network designs, with focus on interoperation, support of mobility, high traffic levels and emerging bandwidth-intensive applications. Focusing e.g. on the market demand in dense urban areas during business hours, it has been calculated that about 1 Gbps/km2 are required. This is an order of magnitude higher than the current forward looking state of the art 4G networks. Whilst capacity is one of the main drivers, the cost of achieving said capacity is another. In other words, only cost efficient solutions to deliver the required capacity density are seen to be viable for 5G deployments. To this end, the talk will be divided into three topics: i) indoor design through femto cells; ii) outdoor design through innovative cellular design; and iii) management of said architectures through self-organizing networking (SON).

Concerning the indoors design, will femtocells pose a potentially large disruption to the carefully planned cellular networks that now connect a majority of the planet’s citizens to the Internet and with each other? Or will femtocells prove more trouble than they are worth, undermining decades of careful base station deployment with unpredictable interference while delivering only limited gains? I will thus overview femtocells, demystify their key aspects, and provide a preview of the next few years, by discussing in great depths the many aspects and facets of the femtocell eco system.

Concerning the outdoors design, I will present a detailed architectural and functional approach to achieving 5G networking capacities – all corroborated by a fairly detailed cost and business case estimate. I introduce the concept of “architectural water-filling” with cheap below-rooftop access base stations and a unique feeding architecture using a combination of licensed in-band spectrum and out-of-band license exempt spectrum. Very high capacity feeding hubs with high-order spatial reuse are thus created using multi-beam antennas and advanced MIMO techniques, as well as use of millimeter wave radio links. Cognitive/docitive techniques are introduced to handle the increasingly complex system dynamics, making a viable step towards SON. Finally, I will dwell on latest trial and ETSI BRAN standardization activities towards the implementation of said 5G systems, as well as how current 3GPP LTE-A activities facilitate the design.

SpeakerD.L. Dr. Mischa Dohler, Leading the Intelligent Energy [IQe] group at CTTC in Barcelona

Speaker Bio:
Mischa Dohler is now leading the Intelligent Energy [IQe] group at CTTC in Barcelona, with focus on Smart Grids and Green Radios. He is working on machine-to-machine, wireless sensor, femto, cooperative, cognitive and docitive networks. He also CTO of Worldsensing, an award-winning company with focus on Smart City solutions as well as wireless instrumentation solutions for construction, seismic acquisition, among others.

In the framework of the Mobile VCE, he has pioneered research on distributed cooperative space-time encoded communication systems, dating back to December 1999. He has published more than 150 technical journal and conference papers at a citation h-index of 30 and citation g-index of 62, holds a dozen patents, authored, co-edited and contributed to 19 books, has given more than 30 international short-courses, and participated in ETSI, IETF and other standardisation activities. He has been TPC member and co-chair of various conferences, such as technical chair of IEEE PIMRC 2008 held in Cannes, France. He is Editor-in-Chief of ETT and is/has been holding various editorial positions for numerous IEEE and non-IEEE journals. He is Senior Member of the IEEE and Distinguished Lecturer of IEEE ComSoc. He had press coverage by BBC, Wall Street Journal, among others. He is fluent in 6 languages.

From June 2005 to February 2008, he has been Senior Research Expert in the R&D division of France Telecom, France. From September 2003 to June 2005, he has been lecturer at King’s College London, UK. At that time, he has also been London Technology Network Business Fellow receiving Anglo-Saxon business training, as well as Student Representative of the IEEE UKRI Section and member of the Student Activity Committee of IEEE Region 8 (Europe, Africa, Middle-East and Russia). He obtained his PhD in Telecommunications from King’s College London, UK, in 2003, his Diploma in Electrical Engineering from Dresden University of Technology, Germany, in 2000, and his MSc degree in Telecommunications from King’s College London, UK, in 1999. Prior to Telecommunications, he studied Physics in Moscow. He has won various competitions in Mathematics and Physics, and participated in the 3rd round of the International Physics Olympics for Germany.

Location:
Building A
7700 West Parmer Lane
Austin,  Texas 78729

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Date: October 18, 2012; 6:00 – 7:30 pm

Title:  Cyber Security and the new Threat Landscape with BYOD

Speakers:  Mr. Paul Meding and Lewis Burton

Abstract:
Businesses need to keep cyber security at the top of their mind as they look to cash in on opportunities created by the growth of mobile and cloud computing. It’s all about managing the risks, the proliferation of mobile devices connecting to business networks and the increased migration of critical data processing and storage to the cloud have expanded the number of potential targets for cyber-attacks, while the Apps on the individual devices may come from any source opening ample opportunities for compromising name, passwords and other details of access methods.

Speaker Bios:

Paul Meding, Senior Security Analyst, AT&T Cyber Security – State of Texas
Paul is a Senior Security analyst with over 10 years of experience in Information Security.  During the last 7 years Paul has worked in QA, Professional Services and frontline support while representing HP-TippingPoint with top global customers in Europe, USA, Latin America, Asia, and the Middle East.  For the most recent 2 years Paul has been working on behalf of AT&T to provide Incident Response & Computer Forensics, Malware Analysis, Security Architecture Design and Review for the Department of Information Resources at the State of Texas.

Paul is a local SANS Mentor and a contributor to the GIAC Advisory Board. Paul is an active security researcher in Botnet detection and Extrusion/Intrusion detection. Paul Currently holds the Following Industry Certifications (CISSP, GISF, GCFW, GCIA, GCIH, GSEC, GWAPT)

 Lewis Burton, Senior Security Network Engineer, AT&T Cyber Security -State of Texas
Lewis is a Senior Network Engineer with 14 years industry experience and 9 years security architecture experience. Since 2007 he has worked on behalf of AT&T securing the State of Texas against Internet-borne threats via improved security architecture and wrap-around processes which help enhance baseline security posture. Previously to AT&T he performed network and security consulting services, focusing heavily upon Cisco solutions. He holds an active CCIE R/S #8164.

Location:
AT&T Labs
9505 Arboretum, Room #220
Austin, TX 78759

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Date: September 4, 2012, 6:00-7:30 p.m. CST

Title:
“Wireless Sensor Networks (WSNs)-based architectural framework for Water Management Application”

Abstract:
“Traditional techniques and technologies for water management will no longer be cost effective or efficient in meeting the demands and challenges of the coming years. In this paper we describe Aqua-Net, a wireless sensor networks (WSNs)-based architectural framework for an efficient, reliable, and economical water management application. We identify areas of research that we are currently engaged in. The proposed framework is flexible and multi-tiered hybrid network architecture that consists of a large number of autonomous single-hop “sensor communities”, traveling backbone network, and  a data depot.  The key elements of the proposed architecture are reconfigurability, fault-tolerance and modularity. The architecture also addresses practical considerations in operating such monitoring networks during floods and other natural disasters.”

Speaker:
Dr. Syed ljlal Ali Shah, Director of Systems, Lattice Semiconductor

Speaker Bio:
Dr. Syed ljlal Ali Shah, is currently the Director of Systems at Lattice Semiconductor. Previously, Dr. Shah was a  Data Path Systems Architect. He has a Ph.D from Columbia University and has written over 35 academic and industrial papers. He is also co-edited a book published by CRC press and has multiple patents to his credit. Dr. Shah’s interests are in wireless networks, Sensor networks, Water Management, IP networks and complex high end SoCs.

Location:
AT&T Labs
9505 Arboretum, Room#220
Austin, TX 78759
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Date:  August 16, 2012, 6:00-7:30 p.m., CDT

Title: Fan Control and Temperature Sensing with AMD’s SB900-Series Southbridge

Speaker: Ali Akbar Merrikh, Ph.D.

Abstract:
Present work is an advisory to platform and system design engineers for implementing fan control and temperature sensing using AMD SB900 Integrated Micro-Controller (IMC). The temperature and fan-control features of the AMD SB900 are comparable to the existing discrete remote-temperature sensors (RTS) and fan controllers. In addition to analog (remote diode) support, the IMC fan control directly supports AMD’s digital temperature sensor, the Sideband Temperature Sensor Interface (SB-TSI), as well as other SMBus-based remote temperature sensors. Our goal is to demonstrate the capability of the mentioned device in today’s computers including low-power, mobile, and desktops.

Location:
AT&T Labs
9505 Arboretum Blvd, Room #220
Austin, TX 78759
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Date: July 19, 2012

TitleObjective Video Quality Assessment for Multi Bit Rate Adaptive Streaming

Speaker: Prabhu Hosur

Abstract:
One of the trends in the streaming media industry recently is the over-the-top (OTT) HTTP adaptive bit rate (ABR) video streaming to end-user devices such as mobile phones, tablets, and PCs having different display screen sizes. For example, streaming technologies such as Apple’s HTTP Live streaming (HLS), Microsoft’s HTTP Smooth Streaming (HSS), Adobe’s HTTP Dynamic Streaming (HDS), and MPEG Dynamic Adaptive Streaming over HTTP( DASH), all use HTTP adaptive bit rate streaming as their underlying method of video delivery. As a result, the consumers are now viewing live video on mobile devices such as tablets and smartphones. Therefore, the requirement of achieving the best video quality on the end-user devices is an important factor that influences the design of adaptive bit rate streaming systems.

This talk will provide an overview of HTTP adaptive bit rate streaming and its implementation in AT&T Labs. This overview will be followed by the details of the methodology for video quality assessment for mobile video delivery using HTTP adaptive bit rate streaming. The individual and combined effects of spatial up-scaling, frame rate up-conversion, bit rate, and video codec profile on the video quality are discussed. In the end, the best practices for designing the transcoder profiles for multi bit rate encoding in adaptive video streaming are presented.

Speaker Bio:
Prabhu Hosur is the Principal Member Technical Staff at AT&T Labs, Austin, Texas. He works on the design and scientific analysis of the system for video delivery to TV and connected devices. Prabhu has degrees in Communications Engineering (Master of Technology from Indian Institute of Technology, Kanpur, India) and Computer Engineering (PhD, Newcastle University, United Kingdom). Prabhu has been working on the design and development of video codecs and streaming technologies for the past 15 years. He has participated in MPEG standards meetings and contributed to the MPEG-4 standards. He has more than 25 publications in International journals, conferences, standards and three patents pending. His areas of interest include, video coding, media streaming, and video quality measurement.

Location:
AT&T Labs
9505 Arboretum Blvd
Room #220
Austin, TX 78759
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Date:  Thursday May 24, 2012, 6:00 – 8:00 pm

Title: “Heterogeneous Processors, Hybrid Systems and Big Data”

Speaker: Dr. Peter Hofstee, IBM Fellow

Location:
AT&T Labs
9505 Arboretum Blvd
Austin, Texas 78759
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Date: Thursday May 17, 2012, 6:00 – 8:00 pm CST

Title:  Cloud Computing and the Texas Advanced Computing Center (TACC)
Speaker: Dr. Dan Stanzione, Deputy Director of the Texas Advanced Computing Center

Location:
AT&T Labs
9505 Arboretum Blvd
Austin, Texas 78759
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Date: April 19, 2012, 6:00 – 8:00 pm CST

Title:   Software Defined Radios Accelerate Wireless Research

Speaker:  James Kimery, Director of Marketing for National Instruments RF / Communications / SDR initiatives

Abstract:
Around the world, wireless consumers’ insatiable demand for bandwidth has spurred unprecedented levels of investment from both the public and private sectors to explore new ways to increase network capacity to meet this escalating demand. Industry analysts postulate that demand will indeed outpace capacity and it’s simply a matter of when. Against this backdrop, wireless researchers continue to advance theories and concepts to address capacity challenges. Some topical areas span low level Physical Layer (PHY) algorithms and upper layer medium access (MAC) to system optimizations and heterogeneous networks. In reality, wireless service providers may not rely on one “silver bullet” to solve the capacity issues but rather employ a combination of techniques as the demand curve is clearly exponential with no inflection point in sight. Although there is no shortage of ideas, the time necessary to transition from concept to simulation to prototype to deployment in a real network can take many years. In particular, transitioning from concept/simulation which is largely a software phase to a working prototype with real signals and waveforms can be expensive and time-consuming, and has been an impediment to the adoption of new techniques to alleviate the wireless bandwidth crunch. Software defined radios (SDR) have emerged as a new approach to address prototyping challenges researchers face with a path to standardization as SDR technologies have become more accessible and capable. the presentation will discuss the suitability of SDRs for rapid prototyping and present some examples through NI’s RF / Communications Lead User program.

Speaker Bio:
James Kimery is the Director of Marketing for National Instruments RF / Communications / SDR initiatives. In this role, James is responsible for the defining the products roadmaps for the company’s software radio strategy. He also leads the RF and Communications programs for research and education. Prior to joining NI, James was the Director of Marketing for Silicon Laboratories’ wireless division which is now a subsidiary of ST-Ericsson. As Director, the wireless division grew to over $250M in revenue and produced several industry innovations including the first integrated CMOS RF synthesizer and transceiver for cellular communications, the first digitally controlled crystal oscillator, and the first integrated single chip phone (AeroFONE). AeroFONE was voted by the IEEE as one of the top 40 innovative ICs ever developed. James also worked at National Instruments before transitioning to Silicon Labs and led many successful programs including the concept and launch of the PCI eXtensions for Instrumentation (PXI) platform. James was a founding member of the VXIplug&play Systems Alliance, VISA working group, and PXI System Alliance. He has authored over 26 technical papers and articles covering a variety of wireless and test and measurement related topics. James holds degrees from the University of Texas at Austin (MBA) and Texas A&M University (BSEE).

Location
AT&T Labs
9505 Arboretum Blvd
Austin, Texas 78759
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