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Network-Driven Transportation Details
Network-Driven Transportation
Today, cell phones are a menace to safe driving, as they distract operators who should otherwise focus on the road. Tomorrow, cell phones could actually improve our driving, and help drivers avoid traffic congestion, use the road system more effectively, and manage the parking supply. Li-Shiuan Peh says that the key to these services are future mobile devices that will have the computer power equivalent to today’s large servers in data centers. Combined with rapid advances in wireless networking, these mobile devices will be harnessed to provide new apps, like next generation transportation programs. We currently use the Internet and Wi-Fi or 3G and then run our programs in the cloud on heavyweight servers. Peh says that an opposite case is likely to emerge, with a move towards collaborative computing, using mobile devices and localized cell phones to replace the heavyweight servers. She envisions a time when advanced cell phones will be “stitched together” to run a single piece or information or a program. Peh says this grassroots type of computing will appeal to the general public, “the sociology” of users, who like to be involved in transportation activities. Behind this collaborative computing, engineers are fine-tuning a sophisticated mesh-network of communications. One of the key protocols for the mesh network is for dedicated short-range communications (DSRC). It is vital for mobile applications, like accident prevention, because it is micro-seconds faster than current standards. DSRC will have very high local coverage, provide faster and more complete transmissions than existing cell towers, and, in particular, be able to overcome the coverage issues of tunnels and dead-spots. Moore’s Law scaling would predict that the computing power needed to advance DSRC applications would be more powerful and more efficient that what we know today. Location resident services are quite demanding from a communications point of view. Engineers must design aro...
Channel:
MIT World
Video Length:
0s
Date Found:
Sat, Oct 23 2010 8:02 PM
Category:
Science
Date Produced:
Fri, Sep 10 2010 12:00 AM
View Count:
0
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