Abstract
Network on chip (NoC) is the latest approach in which multiprocessors are integrated in a single chip and FPGA implementation makes it scalable and reconfigurable. It is the feasible solution for pipelined architecture and parallel processing in multiprocessor system on chip. The research article presents the NoC architecture for flexible and scalable design under 3D mesh topological structure. The design is considered for 8 layers as multilayered architecture. In one layer 64 nodes can communicate with each other. The design is developed with the help of VHDL programming in Xilinx ISE 14.2 software and functionally simulated in Modelsim 10.0 student edition software. The performance of the design is analyzed with hardware parameters and timing utilization parameters on Virtex 5 FPGA. The inter and intra communication among the nodes is verified on the same FPGA. The design is verified on Virtex-5 FPGA with 8, 16, 32, 64 and 128 bit data transfer among nodes when the NoC is fully connected and utilized. The paper also presents the comparative study of the 3D, 8 layer mesh NoC for different cluster size (2 × 2 × 2), (3 × 3 × 3) and (4 × 4 × 4), based on the FPGA synthesis parameters. The scalable architecture is applicable for the nodes communication in a wireless sensor network in which multiple nodes are communicating in defined field and configured in specific topology such as Zigbee standard (IEEE 802.15.4) follow mesh, one of the topology.