This talk will be rescheduled. The speaker could not arrive in Los Alamos due to bad weather conditions yesterday. Another announcement will be sent out soon. Thanks.
>>*** LANL Seminar Series >>*** http://public.ds.lanl.gov/ccs1-seminar >> >>TITLE: >>DRAND: Distributed Randomized TDMA Scheduling For Wireless Ad-hoc Networks >> >>SPEAKER: Prof. Injong Rhee. North Carolina State University, CS Dept. >> http://www.csc.ncsu.edu/faculty/rhee/ >> >>WHEN: Monday, June 26th, 10:00-11:00am Mountain Standard Time >> >>ABSTRACT: >>Rhee presents a distributed implementation of RAND, a randomized time slot >>scheduling algorithm, called DRAND. DRAND runs in O(d) time and message >>complexity where d is the size of a two-hop neighborhood in a wireless >>network while message complexity remains O(d), assuming that message >>delays can be bounded by an unknown constant. DRAND is the first fully >>distributed version of RAND. The algorithm is suitable for a wireless >>network where most nodes do not move, such as wireless mesh networks and >>wireless sensor networks. We implement the algorithm in TinyOS and >>demonstrate its performance in a real test bed of Mica2 nodes. The >>algorithm does not require any time synchronization and is shown to be >>effective in adapting to local topology changes without incurring global >>overhead in the scheduling. Because of these features, it can also be used >>even for other scheduling problems such as frequency or code scheduling >>(for FDMA or CDMA) or local identifier assignment for wireless networks >>where time synchronization is not enforced. >> >>BIO: >>Injong Rhee received his Ph.D. from the University of North Carolina at >>Chapel Hill. He is an associate professor of Computer Science at North >>Carolina State University. In year 2000, he founded Togabi Technologies, >>INC, a company that develops and markets mobile wireless multimedia >>applications for next generation wireless networks and he was CTO and CEO >>of the company until year 2002. His research interests are computer >>networks, congestion control, wireless networks, multimedia networking, >>distributed systems, and operation systems. He is an inventor of several >>congestion control protocols including TEAR, BIC-TCP and CUBIC. In >>particular, BIC-TCP has received a lot of media attention throughout the >>world and is currently the default TCP algorithm used in Linux 2.6 and up. >>He received NSF Early Faculty Career Development Award in 1999 and New >>Inventor's award from NCSU. > > >Meeting details can be found at: >http://agschedule.ncsa.uiuc.edu/meetingdetails.asp?MID=15958 >Venue: Hydrogen (on the NCSA venue server) > >All remote sites are welcome. Please RSVP to [email protected] if your >site is planning on attending. Please arrive in the venue at least 1/2 >hour early for testing. We will be using VNC for the presentation. ============================================ Cindy Sievers Los Alamos National Laboratory [email protected] Group CCS-1 MS B287 tel:505.665.6602 Advanced Computing fax:505.665.4939 Los Alamos, NM 87544 ============================================
