DEADLINE-AWARE BROADCASTING IN WIRELESS NETWORKS WITH NETWORK CODING Pouya Ostovari, Jie Wu, and Abdallah Khreishah Computer & Information Sciences Department, Temple University, USA Center for Networked Computing
Agenda Introduction Motivation Three phases algorithm Broadcasting tree Partitioning Coding Simulation Conclusion
Alice and Bob (No coding) Alice R Bob
Alice and Bob (No coding) X Alice R Bob
Alice and Bob (No coding) Y Alice R Bob
Alice and Bob (No coding) Alice R Bob Y
Alice and Bob (No coding) Alice R Bob X
Alice and Bob (No coding) Alice R Bob X 4 transmissions
Alice and Bob (Coding) Alice R Bob
Alice and Bob (Coding) X Alice R Bob
Alice and Bob (Coding) Y Alice R Bob
Alice and Bob (Coding) Alice R Bob X+Y
Alice and Bob (Coding) Alice R Bob X+Y 3 transmissions
Deadline-Aware Broadcasting 1 2 3 5 4
Deadline-Aware Broadcasting X: Generation : slot 1 Deadline: 6 X 1 2 3 5 4
Deadline-Aware Broadcasting X: Y: Generation : slot 1 Generation: slot 3 Deadline: 6 Deadline: 6 X Y 1 2 3 5 4
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y 1 2 3 5 4 Z
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 1 2 3 • No coding 4 5
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X 1 2 3 • No coding 4 5 Time slot 1
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X X 1 2 X 3 • No coding X 4 5 Time slot 2
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X X 1 2 X 3 • No coding X 4 5 Time slot 2
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X X 1 2 X 3 • No coding X X 4 5 Time slot 3
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 Y 1 2 3 • No coding 4 5 Time slot 3
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 Y 1 2 Y 3 • No coding Y 4 5 Time slot 4
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 Y 1 2 Y 3 • No coding Y 4 5 Time slot 4
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 Y 1 2 Y Y 3 • No coding Y Y 4 5 Time slot 5
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 1 2 3 • No coding 4 5 Z Time slot 5
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 1 2 Z 3 • No coding Z 4 5 Z Z Time slot 6
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 1 2 Z 3 • No coding Z 4 5 Z Z Time slot 6
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 1 2 Z Z 3 • No coding Z 4 5 Z Z Time slot 7
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 1 2 Z Z • 3 transmissions by 3 • No coding Z the relay node • No deadline misses 4 5 Z Z Time slot 7
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 1 2 3 • Coding all the packets 5 4
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X 1 2 3 • Coding all the packets 5 4 Time slot 1
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X X 1 2 X 3 • Coding all the packets X 5 4 Time slot 2
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y X 1 2 X 3 • Coding all the packets X 5 4 Time slot 3
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y X 1 2 X Y 3 • Coding all the packets X Y 5 4 Time slot 4
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y X 1 2 X Y 3 • Coding all the packets X Y 5 4 Z Time slot 5
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y X 1 2 Z X Y 3 • Coding all the packets Z X Y 5 4 Z Z Time slot 6
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y X 1 2 Z X Y 3 • Coding all the packets Z X Y 5 4 Z Z Time slot 6
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y X X+Y+Z 1 2 Z X Y 3 • Coding all the packets Z X Y X+Y+Z 5 4 Z Z Time slot 7
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y X X+Y+Z 1 2 Z X Y • 1 transmissions by 3 • Coding all the packets Z the relay node • Deadline misses X Y X+Y+Z 5 4 Z Z Time slot 7
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 1 2 3 • Waiting time=2 5 4
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X 1 2 3 • Waiting time=2 5 4 Time slot 1
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X X 1 2 X 3 • Waiting time=2 X 5 4 Time slot 2
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y X 1 2 X 3 • Waiting time=2 X 5 4 Time slot 3
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y X 1 2 X Y 3 • Waiting time=2 Y X 5 4 Time slot 4
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y X 1 2 X Y 3 • Waiting time=2 Y X 5 4 Time slot 4
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 X Y X 1 2 X+Y X+Y X Y 3 • Waiting time=2 Y X 5 X+Y 4 X+Y Time slot 5
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 1 2 3 • Waiting time=2 5 4 Z Time slot 5
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 1 2 Z 3 • Waiting time=2 Z 5 4 Z Z Time slot 6
Deadline-Aware Broadcasting Z: X: Y: Generation: slot 5 Generation : slot 1 Generation: slot 3 Deadline: 7 Deadline: 6 Deadline: 6 1 2 Z 3 • Waiting time=2 Z 5 4 Z Z Time slot 6
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