FILE 25 FILE 100 FILE 25 FILE 10

FILE 25% FILE 100% FILE 25%

FILE 10% FILE 40% FILE 100% Downloading Strategy FILE 10%

Main Activity Network Manager Join/Exit Network Group Peer Register/ Unregister Browse Peer Activity Peer Manager Peer List Peer Info Details File List File Download Activity File Request Message File Fragments Receiver Downloading config File Transfer Protocol

Mobile Device • • Wi. Fi direct Laptop Mobile Device Existing protocol Android wifi. net. p 2 p class Android 4. 0 devices only Conflict with other apps Mobile Device Wi. Fi network Mobile Device • Open to all wireless devices • Write all communication from scratch

Our work at this moment Main Activity File Download Activity Wi. Fi direct Network Manager File Transfer One Peer Register/ Unregister

What each team member did • Boyu Chen: • Yulin Xia: • Haoyu Xu:

Establish Connection Import android. net. wifi. p 2 p Wifi P 2 P Manager Initiate Peer Discovery Connect to Peer

File Download Hardcode the file directory Open a socket Connection Transfer that file

What we are doing Connect the laptop and the android mobile phones through multicast and/or broadcast

Future Work • File transfer protocol design • The server control algorithm design

Future Work • Two methodologies: Wi. Fi direct, and multicast/broadcast listener • Expand the current Wi. Fi direct connection to multiple devices. (need more android 4. 0 devices) • Use one of the mobile devices as the server to control the resource allocation and downloading strategy

Future Work