| 1 | == The Idea == |
| 2 | |
| 3 | Challenge: |
| 4 | |
| 5 | In some stadiums, sports fans can view personal video feeds through their mobile devices. However, it is difficult to guarantee the reception reliability of these devices because each user |
| 6 | experiences different wireless channel conditions. |
| 7 | |
| 8 | Solution: |
| 9 | |
| 10 | Take advantage of the multiplicity of radios on modern devices and their physical proximity in a stadium to allow cooperative packet recovery over a secondary network. |
| 11 | |
| 12 | * Wireless devices are connected to the principal network (WiMAX) to receive broadcast data such as live video feeds |
| 13 | |
| 14 | * A wireless device may lose some of the data sent over the principal network |
| 15 | |
| 16 | * Physically co-located wireless devices form an assistant network over WiFi to recover the lost data cooperatively from their peers |
| 17 | |
| 18 | We have implemented this technique in an application called 'coopshim' |
| 19 | |