DuSCA: A multi-channeling strategy for doubling communication capacity in wireless NoC

Abstract

To bridge the widening gap between computation requirements and communication efficiency faced by many-core chips, Wireless Network-on-Chip (WiNoC) has been proposed by using ultra-wideband interconnect. While prior research has demonstrated the salient features of WiNoC as high perlink data rate, high accumulated bandwidth, high flexibility, low overhead and low power consumption, this research aims to develop a multi-access WiNoC to substantially improve the end-to-end performance of on-chip communication. Enabled by time hopping PPM multi-channel capability, we propose an efficient multi-channel distribution and arbitration scheme for improving communication concurrency and resolving channel competition among multiple users to achieve the desired network performance. Our simulation studies based on synthetic traffics demonstrate the efficiency, cost effectiveness and scalability of the channel arbitration scheme and the promising network performance of WiNoC.