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Thermal-aware Routing Algorithm in Fault-tolerant Optical Networks-on-Chip

Erfani Jazi, Hamid Reza | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 47830 (19)
  4. University: Sharif University of Technology
  5. Department: Computer Engineering
  6. Advisor(s): Koohi, Somayyeh
  7. Abstract:
  8. During the recent years, the emerging technology of photonic, on-chip communication has been widely explored to resolve the problems of traditional electrical communication in terms of performance and power consumption. Micro-Resonator (MR) as the photonic building block for optical comunication is very sensitive to temperature and process variation. Variation of resonance wavelength of a micro-resonator as a result of temperature fluctuations causes tremendous error for optical data routing through the waveguides, and reduce the reliability of network. A temperature-aware routing algorithm enables the network to tolerate fault and continue working properly. Temperature variation of MRs is a function of distributed traffic through the network as well as activity of the processing cores. In this regard, in this thesis, we present a novel routing algorithm that tolerates temperature variations in various parts of nanophotonic Network-on-Chip and guide the data to the destination correctly. The proposed routing algorithm is adopted to Mesh topology and simulated with OMNET++ behavioral tool. We have compared the proposed architecture against alternative optical Mesh topologies in term of data communication latency, packet loss, and throughput. Simulation result shows the proposed architecture has been improved by 50%, 34% and 60% in packet latency, packet loss and throughput respectively
  9. Keywords:
  10. Reliability ; Routing ; On-Chip Optical Network ; Temperature Variation ; Fault Tolerance ; Micro-ring Resonator

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