Emilio Bravi

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A new network architecture for high-speed low-latency interconnects is introduced, based on a combination of optical wavelength division multiplexing and the automatic packet self-routing mechanism known as clockwork routing. This paper describes the first detailed analysis of traffic in such a network, and presents throughput and latency statistics(More)
Optical networks based on the ‘clockwork’ routing mechanism have significant advantages for high-speed optical packet switched applications in which latency is critical, such as parallel and distributed computing. The main advantages are that no optical buffers and no centralized contention arbitration are required. However, the network performance(More)
Optical networks based on a combination of 'clockwork' routing and wavelength division multiplexing (WDM) have significant advantages for applications such as the internal interconnection networks of very large supercomputing systems in which latency and scalability are critical. The absence of optical buffers and elimination of centralized contention(More)
The use of amplitude-modulated phase-shift-keyed (AM-PSK) optical data transmission is investigated in a sequence of concatenated links in a wavelength-division-multiplexed clockwork-routed network. The narrower channel spacing made possible by using AM-PSK format allows the network to contain a greater number of network nodes. Full differential precoding(More)
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