Central Switch Noded Mesh architecture (CSNM)

In this paper, a novel mesh based architecture named as Central Switch Noded Mesh architecture (CSNM) with Switching Nodes (SWN) placedat the center of each square block of mesh topology is proposed. The SWNs form a subnetwork inside the actual mesh network and examines the global traffic and informs the router as it routes its packets adaptively. We have also defined an adaptive routing algorithm for unicasting(UC) and a multicasting (MC) routing. The architecture along with its adaptive routing algorithm detects deadlock and avoids it by deviating the traffic through the diagonal link. The proposed routing algorithm is fully adaptive as the packets are free to move in all the directions (except the incoming directions). MC routing algorithm lessens latency and improves performance when compared to other MC based routing algorithms. The result analysis shows an improvement in throughput and reduction of latency with anegligible area overhead.