1. Improving 3G Multicast Throughput via Integration of Cellular and Ad-Hoc Networks Team Members: Gaurav Agashe Shamitha Lokande Shriniket Kale Project Champion: Ngoc Do

2. PROBLEM & MOTIVATION Multicast in 3G networks 3G v/s Ad-Hoc Integrated approach

3. RELATED WORK Considerations for integrating cellular network and ad-hoc networks Ad-hoc placement and routing strategies Relay types Benefits of integration.

4. OUR APPROACH The scenario Proxy discovery -Greedy approach -Receiver initiated -Multi path / multi hop Path maintenance

5. R1 R2 R3 N8 N7 N6 N5 N4 N3 N2 N1 N9 BASE STATION RTREQ RTREQ(3G) RTREQ TTL: 3 Node: R1 Avg. DL rate: 2.4Mb/s Seq.No: 1 (R1,2.4) RTREQ TTL: 3 Node: R2 Avg. DL rate: 3.6Mb/s Seq.No: 1 (R2,3.6) RTREQ TTL: 3 Node: R3 Avg. DL rate: 2.4Mb/s Seq.No: 1 (R3,2.4) RTREQ RTREQ(3G) Msg. received! Recd. Rate : 2.4Mb/s N1’s rate: 1.8Mb/s Recd. Rate > N1’s rate Don’t forward!! Msg. received! Recd. Rate : 2.4Mb/s N2’s rate: 3.6Mb/s Recd. Rate < N2’s rate Add node N2 to path Message TTL:2 (N2,3.6) (R1,2.4) RTREQ(3G) RTREQ RTREQ (3G) FOR R1 PATH: R1 -> 2.4 PATH: N2-R1 -> 3.6 FOR R3 PATH: R3 -> 2.4 PATH: N9-R3 -> 4.8 FOR R2 PATH: R2 -> 3.6 MULTICAST RATE SELECTED: 3.6

6. PERFORMANCE MEASURES Static v/s Mobile scenarios Interference issue Pure cellular v/s Hybrid networks Project status Future enhancements