Date Added: Aug 2011
Network coding is a class of routing algorithms offering increased throughput and improved robustness to random failures. With traditional routing, intermediate nodes in the network may only forward unmodified packets. With network coding, instead, intermediate nodes are allowed to forward linear combinations of received packets. Original data can be reconstructed after collecting sufficiently many linear combinations. Current file sharing systems offer either low overhead and high bandwidth with no privacy, or acceptable privacy at very low speed.