Look Who it Was Random video

Improving Application Perceived Performance

444 views · Published 23 October 2008 · 55:41 · Indexed 20 September 2026

Channel: Case Western Reserve University · 2008 · Education

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Speaker: Shudong Jin
Thursday, October 16th, 2008 @ 11:30 AM

For decades, computer networkshave been designed so that the 
network elements in the middle (e.g., routers) receive and forward 
packets which are the unmodified copies of the original ones sent by 
end-hosts. The network coding paradigm, originated from the 
information theory field, breaks the assumption of this routing 
architecture: nodes inside a packet-switched network can process and 
mix incoming packets into outgoing packets, as opposed to the simple 
store-and-forward approach of routing. This new paradigm has been 
shown to have many performance benefits. In particular, network 
coding gains attention in wireless ad hoc and mesh networks where 
the broadcast capability can be fully exploited to maximizing network 
capacity.  In this talk, I will briefly introduce this new coding technique. 
While attractive and elegant in theory, the feasibility and true benefits 
of this paradigm, in particular for end-host applications and users, 
remain ill understood. I will illustrate both the potential and impact of 
this new coding technique in the context of an ongoing project.

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