WINLAB IAB Meeting May 14, 2004

Transcription

1 WINLAB IAB Meeting May 14, 2004 Rutgers, The State University of New Jersey Contact: Professor D. Raychaudhuri, Director 1

2 WINLAB STATUS UPDATE & RESEARCH OVERVIEW 2

3 WINLAB Status Update WINLAB welcomes sponsors to the Spring 2004 IAB meeting Focus on consolidating 3 years of growth and on delivering research results The center s budget/size grew by ~250% in 3yrs, and has now leveled off at ~$4M/yr Current focus is on consolidation of these gains into long-term research programs, new laboratories, increased faculty size and stronger student pool WINLAB has faced the expected growing pains associated with resources such as space and faculty, but progress is being made ( new building, networking Asst Prof) Facing some challenges with NJ state funding for research. Major NSF programs (ORBIT, Spectrum, MIMO/Daphne) have provided focus and a sense of purpose Increased volume of research, many new results from both industry and govt projects 3

4 Status (contd.) Industrial Sponsorship Program Currently ~14 sponsor companies 3 companies left the sponsor program this year due to continuing R&D cuts. Added 1 new sponsor: Panasonic, and 2 new research partners: Aruba Networks and PnP Networks Expect to add 1-2 additional new sponsors by Fall 04 Target ~10-15 companies, with close collaboration wherever possible ~3-4 industry focus projects currently in progress 4G radio PHY 3G/4G HARQ Security Increasing collaboration with sponsors on large Govt proposals NSF MIMO project (DAPHNE) ORBIT wireless networking testbed More joint proposals with sponsor/partner company labs on key topics Cognitive radio Pervasive computing, sensor systems 4

5 Status (contd.) Industrial Sponsorship Program Seeking more long-term research collaboration with sponsors Now that we have invested in new labs and a larger, more qualified student pool, we invite sponsors to work more closely with us Contributions to ongoing large projects such as ORBIT Specific focus projects on topics of mutual interest Joint proposals to future govt funding RFP s Visiting researchers, short sabbatical leaves, etc. More student projects and internships ORBIT facility (~11,000 sq-ft in Rt 1 Tech Center bldg) will have adequate space for research visitors, eff 4Q04. Open to ideas for improving information flow and collaboration 5

6 Status (contd.) Govt-funded projects Several large Federal/State programs over the past few years Freebits - NSF, NJCWT - NJCST (...ending in 03) Spectrum - NSF ( 03-05) MUSE - NJCST ( 03-07) DAPHNE (MIMO) NSF ( 03-06) ORBIT NSF ( 03-07) Several proposals in the pipeline for NSF ITR, NSF NeTS and DARPA Radio resource management in ad-hoc networks Cognitive radio (1 hardware, 1 systems) Pervasive computing software Cognitive techniques for wireless network management 6

7 Status (contd.) Govt-funded projects (cont.) State budget improving, but research infrastructure funds still a problem at all New Jersey state universities MUSE sensor project renewed at 50% level, but NJCST in disarray Governor s university merger & jobs growth bond initiative failed last Dec WINLAB a finalist for major state research infrastructure grant, now off the table Need to build support for state funding of research base -> working with Princeton, NJIT and Stevens for a multi-university initiative in wireless Will also compete for NJCST funding once a revamped program is announced 7

8 Status (contd.) Govt-funded projects (cont.) Current focus on execution of ORBIT wireless network testbed ORBIT project ($5.45M over 4 yrs) started in Oct 03 Team of ~12 faculty/staff (including 2 full-time research specialists) + ~15 grad students at RU, Columbia, Princeton, Bell Labs, IBM and Thomson WINLAB s current focus on design and development of radio grid emulator Other faculty working on EWP s ranging from ad-hoc nets to security First ~4x4 radio grid demonstrated in April 04 64x64 system by Aug 04 Started a DARPA project investigating ad-hoc network algorithms on 4x4 grid Expect to offer early access of radio grid emulator to end users in Fall 04 Move to new ORBIT facility in Fall 04 for full-scale emulator deployment 8

9 WINLAB Status: Current Faculty List Basic Radio/ Modem Technology Radio Resource Management & Mobile Network Architecture & Protocols Mobile Computing Middleware & Applications Wireless Systems Y. Lu M. Bushnell J. Evans P. Spasojevic L. Greenstein R. Rajnarayan (Research Engineer) S. Filipovic (Research Engineer) P. Henry (AT&T Labs)* R. Yates C. Rose N. Mandayam S. Mau (Post-Doc) D. Frenkiel Z. Gajic L. Razoumov (Research Scientist) D. Raychaudhuri W. Trappe Asst Prof in Networking (TBH) I. Seskar (Assoc Dir IT) R. Siracusa (Research Specialist) H. Liu (Research Prof, ORBIT) K. Wine (Research Engineer) M. Ott 1 R. Howard 1 B. Nath T. Imielinski H. Hirsh M. Parashar Y. Zhang Students: PhD 7 MS 3 Students: PhD 12 MS 4 D. Reininger (Semandex)* S. Paul (Bell Labs)* D. Saha (IBM)* A. Acharya (IBM)* Students: PhD 14 MS 3 * Adjunct Prof 1 Part-time visiting faculty 9

10 RESEARCH HIGHLIGHTS 10

11 WINLAB Overview: Research Direction MSC Custom Mobile Infrastructure (e.g. GSM, 3G) BTS Public Switched Network (PSTN) BSC VOIP WLAN Access Point Internet (IP-based) Generic mobile infrastructure BTS Infostation cache WLAN Hot-Spot Research Themes: Super-fast short range radios UWB, MIMO Sensor devices/soc 4G radio & next-gen WLAN Spectrum coordination Unified mobility protocols Ad-hoc network RRM, MAC and routing protocols Ad-hoc net QoS & security Sensor net software models etc. CDMA, GSM or 3G radio access network Research Themes: Faster radios Interference issues Power control 3G Scheduling Handoff algorithms WLAN MAC 3G/WLAN interworking Security Mobile content etc. Broadband Media cluster (e.g. UWB or MIMO) Ad-hoc network extension VOIP (dual-mode) Today Future? Low-tier clusters (e.g. low power sensor) 11

12 WINLAB Overview: Research Direction (cont.) Compute & Storage Servers Pervasive Application Agents User interfaces for information & control Mobile Internet (IP-based) Overlay Pervasive Network Services Sensor net/ip gateway 3G/4G BTS GW Ad-Hoc Sensor Net A Sensor/ Actuator Relay Node Ad-Hoc Sensor Net B Virtualized Physical World Object or Event 12

13 Infostations: i-media prototype for enhanced 2.5G/3G services WINLAB s i-media prototype developed in 2003 aimed at enhancing 2.5G/ 3G media services WLAN AP with MAC optimizations wired network interface (Ethernet, DSL,..) on board processing & cache storage XML-based content routing for information delivery services Project now moving to lab trials/tech transfer stage: media service demonstrations with wireless service operators military applications... WINLAB s i-media Infostations prototype 9/03 13

14 WINLAB Prototypes: Emergency Response Infostation Outdoor Infostations for Rapid Deployment For first responders to set up wireless communications infrastructure at disaster site Provides WLAN & sensor net services Infostations for caching large files (maps, etc.) Wireless backhaul link Prototype incorporates: MAC+ for Infostations pass-through mode content caching algorithm & software solar panels, antennas and embedded processor with WLAN card can be integrated with ad-hoc sensors WINLAB s Emergency Infostation

15 Sensor Technology: MUSE Prototype Multimodal wireless sensor hardware being developed with NJCST funding... novel ZnO materials for tunable sensors integration with low-power wireless transceiver designs focus on an integrated system-on-package or system-on-chip integrated ad-hoc networking software (as outlined earlier) sensor applications, including medical heart monitors, etc.!" '"( % %"!!"# $% %! & )**)(*+",-!(!!'(.*)//' "# "" "" 01 )**2(*3",-, # ( "" "% " 15

16 Sensor Technology: Multimodal ZnO device Tunable ZnO sensor developed by Prof. Y. Lu s group Can be reset to increase sensitivity, e.g. in liquids or gas Dual mode (acoustic and UV optic) Applicable to variety of sensing needs 2DEG mesa Sensing device with chemically selective receptor coating REF. Mixer Sensor output Gate voltage input 2DEG Ground 2DEG mesa SAW IDT!#-45!!, 16

17 MUSE ZnO Sensor 17

18 WINLAB Prototypes: Medical Sensor with WLAN First system-level MUSE prototype completed 11/03 New ECG interface board CerfCube platform with b (off-the shelf components) WINLAB drivers & networking software Next steps Make this prototype available to BioMed and UMDNJ collaborators Integrate with ZnO devices Continue work towards MUSE sensor SoP/SoC with low-power b 18

19 Sensor Technology: Low Power b hardware Low-power b + multimodal ZnO sensor under development at WINLAB. Subset of b optimized for sensor energy ARM RISC core RF wake-up module, sensor interface,.. 19

20 Cognitive Radio: Dynamic spectrum sharing Focus on both legal and technical mechanisms for efficient use of unlicensed spectrum as wireless devices proliferate Project scope includes UNII spectrum etiquette, power control, collaborative multi-hop routing, etc. Also, a new spectrum lab for experimental evaluation of alternative methods ( needs new measurement tools!) WLAN micro-cell AP Spectrum etiquette protocol for co-ordination Control parameters: Power, frequency, time, ad-hoc associations, etc. Bluetooth phone & BT laptop Chaos vs. collaboration? How much collaboration is enough? Can multiple PHY s coexist? Spectrum etiquette standard? Property rights implications? How to measure performance & compliance? Ad-hoc sensor net Sensor with PHY TBD WPAN pico-cell 20

21 Cognitive Radio: Spectrum Policy Server Internet-based Spectrum Policy Server can help to coordinate wireless networks - needs connection to Internet even under congested conditions (...low bit-rate OK) - some level of position determination needed (..coarse location OK) - spectrum coordination achieved via etiquette protocol centralized at server 6 6! # %%%! 50 " / 7)8 50 "9 :! AP1: type, loc, freq, pwr AP2: type, loc, freq, pwr BT MN: type, loc, freq, pwr " 0 (""!""" ( 9! 21

22 Cognitive Radio: Coordination Channel Common Spectrum Coordination Channel (CSCC) can be used to coordinate ad-hoc radios without wired AP s or position information: - requires a standardized out-of-band etiquette channel & protocol - periodic tx of radio parameters on CSCC, higher power to reach hidden nodes - local contentions resolved via etiquette policies (..independent of protocol) - also supports ad-hoc multi-hop routing associations ;", ; ( 9 ( ; " 0 ( 4 ;", 4 22

23 Cognitive Radio: Hardware Project Network Centric concept for cognitive radio prototype, integrating agile RF/adaptive modem with network processing for etiquettes and multi-hop collaboration Joint NSF NeTS proposal with Bell Labs (Dr. T. Sizer) and GA Tech (Prof. Lasker) to develop flexible cognitive radio platform Megarray Connector- 244 Configurable I/O pins XC2V6000 FPGA TMS320C BaseT Ethernet MPC8260 Bell Laboratories Software Defined Radio (Baseband Processor) Courtesy of Dr. T. Sizer 23

24 Ad-Hoc Network: Discovery Protocol Creates efficient ad-hoc network topology just above MAC layer in order to reduce burden on routing protocol 6 (,"$ "(% < AP coverage area Forwarding Node (FN) 0 0 Access Point (AP) Low-tier access links (AP/FN Beacons, MN Associations, Data) 0 Low-tier (e.g. sensor) Mobile Node (MN) FN coverage area Ad-hoc infrastructure links between FNs and APs (AP/FN Beacons, FN Associations, Routing Exchanges, Data) "# $ %! 24

25 Ad-Hoc Network: Topology Formation Delay Constrained Energy Minimization: 25

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