1. D. Raychaudhuri, M. Gerla, (eds.), "New Architectures and Disruptive Technologies for the Future Internet: The Wireless, Mobile and Sensor Network Perspective". NSF WMPG Workshop Report, August 2005
2. J. Evans, D. Raychaudhuri, S. Paul, "Overview of Wireless, Mobile and Sensor Networks in GENI," GENI Design Document 06-14, Wireless Working Group, September 2006.
3. S. Paul, "Requirements Document for Management and Control of GENI Wireless Networks," GENI Design Document 06-15, Wireless Working Group, September 2006.
4. W. Trappe, W. Xu, "Requirements Document for Security of GENI Wireless Networks," GENI Design Document 06-16, Wireless Working Group, September 2006.
S. Paul, S. Seshan, "Virtualization and Slicing of Wireless Networks, GENI Design Document 06-17, Wireless Working Group, September 2006.
6. M. Gerla, "Urban Vehicular Networks in GENI," GENI Design Document 06-18, Wireless Working Group, September 2006.
7. R. Govindan, J, Heidemann, M. Welsh, D. Estrin, "Sensor Networks in GENI," GENI Design Document 06-19, Wireless Working Group, September 2006.
J. Evans, G. Minden, E. Knightly, "Cognitive Radio Networks in GENI," GENI Design Document 06-20, Wireless Working Group, September 2006.
9. C. Elliot, "System Engineering Document for
Wireless Subnets," GENI Design Document 06-21, Wireless Working Group, September 2006.
R. Govindan, "Wireless and Sensor Experiments," GENI Design Document 06-22, Wireless Working Group, September 2006.
WINLAB is one of the key participants in NSF's "GENI" (Global Environment for Network Innovation) initiative which started in 2005. The proposed GENI project (to be funded under the "MREFC" major research infrastructure program at NSF) aims to develop a global-scale programmable experimental nework infrastructure for research on future Internet architecture, protocols, and software. WINLAB's work has focused on wireless aspects of GENI, both in terms of identifying research challenges and developing preliminary designs for programmable wireless network deployments in GENI.
Over the last 15-20 years, the Internet has evolved into a global network supporting a variety of computing and telecommunication applications. Looking ahead, the Internet must respond to emerging requirements for increased scale, improved security, support for mobile/wireless devices and embedded machine-to-machine (M2M, sensor) applications. A key question to be answered is that of "evolution vs. revolution" in the design of the Internet Protocol (IP) as the network changes to accommodate new service requirements, end-user devices and applications. We note that wireless, mobile and sensor network scenarios are expected to grow rapidly at the edge of the Internet with mobile/wireless and sensor devices significantly outnumbering wired computers by 2010. These devices will increasingly be used for "pervasive computing" applications in which the Internet enables monitoring and interaction with every aspect of the physical world. It is clear that today's TCP/IP paradigm does not adequately address many of the emerging wireless/mobile/sensor requirements such as large-scale mobility, location awareness, disconnections in wireless media, etc. As a result, many researchers in the wireless networking community are investigating "clean slate" network architecture and protocol solutions to be tested at scale using the proposed GENI facility.
GENI is a community project with several participants, and there are a range of technical approaches for wireless aspects of the future Internet. In 2005, WINLAB was invited by NSF to host a community-based "wireless/mobile planning group (WMPG)" with two basic objectives:
- Identify major research challenges for the future Internet as it relates to mobile, wireless and sensor devices
- Make recommendations for research infrastructure necessary to pursue major research themes identified, drawing upon community experience with testbeds and platforms such as WINLAB's ORBIT radio grid, Emulab, Kansei, WARP, etc.
The WMPG planning group later evoloved into the "GENI Wireless Working Group" as of mid-2006, and is currently co-chaired by Profs. Raychaudhuri of Rutgers and Evans of UKansas. The WWG's mission is to complete planning and technical documentation for wireless aspects of GENI.
In July 2006, WINLAB also started work on an NSF-funded collaborative project involving Rutgers, Wisconsin-Madison and Princeton aimed at developing a set of proof-of-concept prototypes for GENI wireless. These include an integrated demonstration of wired + wireless experimentation in GENI using both ORBIT and PlanetLab, as well as several demonstrations of virtualization ("slices") in wireless networks.
Results-to-date and Future Work Plan
The first WMPG workshop aimed at identifying major research challenges and related experimental infrastructure for wireless, mobile and sensor nets was held at WINLAB in August 2005. The event was attended by ~35 researchers and led to a draft report entitled "New Architectures and Disruptive Technologies for the Future Internet: The Wireless, Mobile and Sensor Network Perspective". The document is available at:
The report identifies a number of implications for end-to-end Internet architecture and makes specific recommendations for experimental wireless networking infrastructure in GENI.
Subsequent work by the GENI wireless working group (WWG) during 2006 and 2007 has led to a more complete set of research plan and facility design documents. This work was done collaboratively by the working group (see http://www.geni.net/groups.php for membership list) with Prof. Sanjoy Paul of WINLAB serving as Network Architect and Dr. Chip Elliot of BBN serving as System Engineer. A number of design documents covering GENI wireless overview, research experiments, functional design of subnetworks, security, system design, etc. have been completed and are available at http://www.geni.net/documents.php.
Proof-of-concept prototyping work on GENI is also being done at WINLAB in collaboration with Wisconsin and Princeton. A demonstration of integrated wired and wireless experiments running on PlanetLab and ORBIT has been completed and will be shown at a forthcoming WWG workshop in March 2007. Separate implementations of VMAC, SDMA, FDMA and TDMA virtualization in wireless grids have also been completed on ORBIT. Evaluation of these alternative schemes is currently in progress.
The current planning phase of GENI is expected to be completed in 2007. Future work on selected aspects of wireless GENI platform development and proof-of-concept testing is planned at WINLAB, of course, subject to future proposal awards.
Prof. Dipankar Raychaudhuri
ray (AT) winlab (DOT) rutgers (DOT) edu