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Network coding

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Lishi He
Lishi He
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Network Coding for Multicasting in Mobile Ad-Hoc Networks http://www.ikbear.com http://twitter.com/ikbear
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object]
Network coding ,[object Object],[object Object],[object Object]
Assumptions ,[object Object],[object Object]
Multicast requirements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Definition of the channel ,[object Object],[object Object],[object Object]
Max-flow min-cut theroem ,[object Object],1 1 1 1 1 1 1 Capacity: 2 Capacity: 1 Source Sinks Intermediate nodes 1 1
Network coding in action ,[object Object],[object Object],A B A A A A a b 2 B A b 1 B {A,B} {A} Min-cut max-flow states that We should be able to send 2 bits to b 1 and b 2 but how?
Network coding in action ,[object Object],[object Object],A B A  B A a b 2 B A b 1 B {A,B} {A,B} A  B A  B
Network coding in action ,[object Object],[object Object],[object Object],[object Object]
Minimum energy multicast in Mobile Ad-Hoc networks [3] ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Proposed Network Coding solution in wireless mobile scenario: ,[object Object],a+b: 9 b:4 a:8 b:1 a:5 a:4 a:5 b:2 b:3 a:6 a:7 a:2 a:1 network coding 9 transmissions energy per bit = 4.5 a:3 a a,b a a,b b,a a:1 conventional routing 5 transmissions (x2) energy-per-bit: 5 a
Simulations: the setup ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Simulation result ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Simulation results
Simulations result ,[object Object],[object Object],[object Object],[object Object],[object Object]
Conclusions and future work ,[object Object],[object Object]
Future work ,[object Object],[object Object],[object Object],[object Object]
References ,[object Object],[object Object],[object Object],[object Object]
Questions? ,[object Object]

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Network coding

  • 1. Network Coding for Multicasting in Mobile Ad-Hoc Networks http://www.ikbear.com http://twitter.com/ikbear
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