Modify multicast rate Embed Sequence Numbers Strip Sequence Numbers UDP UDP Error Correction Decoder Receiver UDP UDP UDP Cloud-based ServerProxy Server WiFi Access Point Channel Statistics Feedback

The lack of adequate support for multicast hinders the ability of WiFi to deliver high quality video in crowded areas with large number of users. In our recent papers, we presented techniques for low-overhead feedback collection and rate adaptation for WiFi multicast. In this demo, we present a platform for evaluating video delivery over multicast using these techniques. The platform does not require changes in existing 802.11 standards and we implemented it on Android devices and laptops. The platform allows evaluation of the performance of multicast feedback, rate adaptation, and video rate adaptation algorithms in various settings including mobility and external interference. Keywords— WiFi Multicast, Video Streaming, Mobile, Performance Evaluation