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A fundamental challenge in wireless networks is handling packet loss due to dynamic noise, interference, and dynamic channel effects, especially when there is no per-packet acknowledgement due to additional delays and potential loss of feedback packets. We design and implement a packet coding optimization scheme applied at source node to enhance end-to end transmission reliability in a lossy multi-hop...
In this paper, we propose SoCast — a cooperative video multicast framework to stimulate effective cooperation among mobile users (clients), by leveraging two types of important social ties, i.e., social trust and social reciprocity. By using SoCast, clients can form groups to restore incomplete video frames by obtaining missing packets from other clients, according to the unique video encoding structure...
We consider a basic model for two-hop transmissions of two information flows which interfere with each other. In this model, two sources simultaneously transmit to two relays (in the first hop), which then simultaneously transmit to two destinations (in the second hop). While the transmission during the first hop is essentially the transmission over a classical interference channel, the transmission...
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