Amin Mehranzadeh - Department of Computer Engineering, Science and Research Branch, Islamic Azad University Tehran, Iran
Ahmad Khademzadeh - Iran Telecommunication Research Center Tehran, Iran
Midia Reshadi - Department of Computer Engineering, Science and Research Branch, Islamic Azad University Tehran, Iran

An input selection strategy is an important part of a router that is done by an arbitration process. When an output channel is requested by two or more input channels simultaneously, the best input channel will be selected by the input selection strategy. This research presents a new input selection strategy called DTIS (Destination Traffic based Input Selection). The DTIS uses local and non-local congestion information on the path to distribute traffic more evenly over the network. Also, a global congestion aware method called DCA is used to give priority to an input channel according to the destination. The simulation results prove that DTIS improves the average latency and throughput for various synthetic and real traffic patterns with acceptable overhead in terms of area consumption. The simulation results show the average delay improvements of DTIS to the CAIS and Round Robin strategies are 26% and 77%, respectively.

Keywords-component, Network on Chip, Arbitration, Input selection strategy, Destination traffic, Performance evaluation