MobiCom 2013 / Miami, Florida / September 30- October 4, 2013


 Invited Industrial Speakers 


   The Broadcom Talk 

Power and Thermal Challenges in Mobile Devices

Krishna Sekar
Principal Scientist
Mobile and Wireless Group
Broadcom Corporation

In spite of recent advances in the development of advanced low power designs and power management techniques, power remains and will remain a first-class design constraint for mobile devices. The functionality crammed into mobile devices will only continue to grow with the increasing transition from PCs to super-phones. Power remains one of the fundamental bottlenecks to this transition, and without continued innovations in power management, the term "mobile" devices will be rendered moot. In addition to (and closely related to) power challenges in mobile devices are thermal challenges. Increasingly complex and rich functionality in mobile devices leads to higher power dissipation and consequently higher temperatures. However, thermal constraints are constant across successive device generations. Thermal limits (even more than power) will become the fundamental bottleneck to increasing the capabilities of mobile devices, making thermal management techniques crucial. This talk discusses some of the major challenges in power management and thermal management for current and next-generation mobile devices from an industry perspective.

Presentation: download (pdf)

About the Speaker:
Krishna Sekar Dr. Krishna Sekar is currently Principal Scientist in the Mobile and Wireless group at Broadcom Corp., San Diego, where he conducts research and development on various aspects of system-level power and thermal issues in current and next-generation smartphone and tablet products. Prior to this, he was with the Broadband Communications group at Broadcom, San Diego, where he researched and developed various embedded security solutions for Broadcom chipsets. Dr. Sekar has served on the technical program committee of the ACM International Conference on Mobile Computing and Networking (MobiCom) and as an expert reviewer for numerous leading conferences and journals. He has co-authored 10 conference and journal publications and was the recipient of a Special Services award from the IEEE VLSI Test Symposium (2003). Dr. Sekar received the B.Tech degree in Computer Science and Engineering from the Indian Institute of Technology, Kharagpur, India, in 1999 and the M.S. and Ph.D. degrees in Computer Engineering from the University of California, San Diego, in 2001 and 2005, respectively.

   The Alcaltel-Lucent Bell Labs Talk 

Towards a Virtual Cellular Network with Variable Grade Spectrum: Challenges and Opportunities

Milind M. Buddhikot
Distinguished Member of Techinical Staff (DMTS)
Alcatel-Lucent Bell Laboratories

This position paper presents vision of a bold future for wireless networking research where wireless networks exploit many variable grade spectrum bands. The transformation we envision will be fueled by a fundamental change in the way networks use spectrum. The mix of spectrum options will include existing exclusively licensed and unlicensed bands and new shared spectrum bands where incumbent primary transmitters with interruptible, exclusive access share the band with cooperating (secondary) users. Such bands used in small cell deployments will be key to creating enormous wireless capacity. The nascent spectrum database technologies will morph into more dynamic spectrum databases and provide essential interference coordination, channel management and monetization. This trend when combined with virtualization of Radio Access Network (RAN) will gradually lead to new deployment models where entire wireless network control and data paths are collapsed into virtual machines in a data center. Such implosion of network and democratization of spectrum access can fuel innovative business models and new regulatory regimes for wireless networks. We illustrate the new architecture and component radio, database and security technologies using concrete example of incorporating shared S-band radar spectrum in a virtualized small cell network. We also identify new business models, major research challenges and potential roadblocks that can slow down realization of this vision into reality.

Presentation: downloload (pdf)

About the Speaker:
Milind Buddhikot Milind M. Buddhikot is currently a Distinguished Member of Technical Staff (DMTS) in Alcatel-Lucent Bell Laboratories, where he conducts research in next generation of wireless networks. Milind's technology contributions in areas of dynamic spectrum access, integration of Wi-Fi and cellular networks, wireless mesh networks, and video-on-demand (VOD) services are well recognized in the research community. Milind holds a Doctor of Science (D. Sc.) in computer science (1998) from Washington University in St. Louis and a Master of Technology (M. Tech.) in communication engineering (1988) from I.I.T (Mumbai). He is a recipient of the Bell Labs President's Silver Award for outstanding innovations and contributions (2003), Bell Labs Team Award (2003), Lucent Chairman's Team Award (2006), and DMTS award (2012). He has published more than 40 technical papers in top-tier conferences and journals. He holds 9 patents and has filed over 20 other patents. Milind is a co-founder of the IEEE DySPAN symposium which has emerged as a premier conference on the topic of Dynamic Spectrum Access. He has served as an Associate Editor of IEEE/ACM Transactions on Networking and Elsevier's Computer Networks Journal and regularly participates in NSF panels and TPC committees of major IEEE and ACM conferences. More details on Milind's research can be found at

   The Google Talk 

Why Mobile Performance is Hard

Matt Welsh
Head of Mobile Web Performance Team

Despite two decades of research on optimizing mobile networking performance -- and LTE speeds pushing 50 Mbps in many markets -- the performance of mobile applications and websites is still abysmal, especially compared to their desktop counterparts. In this talk IĄŻll explain why this is such a hard problem, and why it has little to do with conventional research directions, such as optimizing mobile TCP/IP performance. I'll also talk a bit about work that Google is doing in this area on the Chrome and Android platforms.

Presentation: download (pdf)

About the Speaker:
Matt Welsh Matt Welsh is the head of the mobile web performance team at Google's Seattle office. Prior to joining Google, he was a professor of Computer Science at Harvard University, where he deployed sensor networks on volcanoes and developed programming languages for robotic bees. These days he focuses on making the mobile web faster, cheaper, and more secure.

   The Microsoft Talk 

Designing an Energy Aware Operating System

Arun Kishan
Developmet Manager
Kernel Platform Group


Presentation: download (pdf)

About the Speaker:
Arun Kishan Arun Kishan joined Microsoft in 2002 and has been with the Windows Kernel team ever since. During that time, he has worked on and led the development of various subsystems in the Windows OS and kernel, including the process subsystem, thread scheduler, and most recently, the Windows 8 application execution model (which in particular has been designed from the ground up with battery life in mind). He is currently the development manager for the Kernel Platform Group, whose charter spans hardware bring up, energy efficiency, core kernel development, and system componentization. He holds undergraduate and Masters degrees in Computer Science from Stanford University.

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