reliable flow control coding in low-buffer grid networks

we consider a grid network where nodes contain small buffers. a packet that faces a crowded buffer in its route will get extra latency and may be dropped. in this paper, we propose a novel flow control protocol called rfcc for grid networks. rfcc tries to reroute delayed packets and utilizes network coding to introduce a configurable amount of redundant information in the network, thereby increasing reliability in the face of packet loss. rfcc contains a number of mechanisms to adapt to the traffic model on a grid interconnection network in a multiprocessor system. our simulation experiments show that rfcc improves reliability with comparable traffic overhead compared to the case in which rfcc is not used.