Texas A&M International University
The authors consider the problem of content distribution to a group of cooperative wireless peer devices that desire the same block of information. The QoS metric is that peers are all required to receive the block by a fixed deadline, with a certain target probability. The block is divided into chunks, which are received via two methods that can be used simultaneously - the B2P (Base-station-To-Peer) network: each peer has an unreliable, expensive, unicast channel to a cellular base station, and the P2P (Peer-To-Peer) network: peers can share the content over a free, lossless internal wireless broadcast network. Chunks are coded using random linear codes to alleviate the duplicate chunk reception issue.