A routing algorithm for reducing optical loss in photonic Networks-on-Chip

作者：Asadi Bahareh; Reshadi Midia^*; Khademzadeh Ahmad

来源：Photonic Network Communications, 2017, 34(1): 52-62.

DOI：10.1007/s11107-016-0656-x

• Microring resonator
• Non-blocking
• Optical loss
• Photonic Network-on-Chip
• Routing algorithm

Photonic Network-on-Chips is a new generation of Network-on-Chips and has been proposed as a novel solution for the communication infrastructure of chip multiprocessors as well as a different solution to eliminate limitations of Network-on-Chips. Photonic Network-on-Chips has important properties such as increasing communication bandwidth, lowering transmission latency, and lowering power consumption. These networks have some challenges such as routing for transfering photonic data over photonic layer. In this paper, we propose a new routing algorithm in which we use turning models, circuit-switching method, different traffic patterns such as Random, Paratec, Madbench, Bitreverse, Cactus, and Tornado to reduce optical loss to photonic layer. To do this, we have also considered non-blocking five-port router and 2-D Mesh topology. The new proposed routing algorithm can choose different source and destination nodes through selecting the path with the lowest optical loss. So to evaluate optical loss in different paths, we have considered best-case loss path, average-case, and worst-case. This was because we can use best-case loss path in order to transfer photonic data over photonic layer. In the end, proposed routing algorithm with turning models and different traffic patterns shows some improvements of optical loss in photonic layer and notably reduce this factor compared to the other XY dimension-order routing algorithm with 5 ports router.

• 出版日期2017-8