Title :
RPNoC: A Ring-Based Packet-Switched Optical Network-on-Chip
Author :
Xiaolu Wang ; Huaxi Gu ; Yintang Yang ; Kun Wang ; Qinfen Hao
Author_Institution :
State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´an, China
Abstract :
Optical network-on-chip (ONoC) is a promising solution for its high bandwidth and low energy consumption. However, optical circuit switching requires an electrical control network, which leads to network congestion, low network utilization, high latency, and an overhead in energy consumption. In this letter, we propose an architecture called RPNoC based on ring topology using packet switching. A wavelength assignment method and a deadlock-free deterministic routing algorithm are jointly designed, which significantly reduce the maximum number of hops using much fewer optical devices compared with other packet-switched ONoCs. The simulation is carried out for 64-node RPNoC under uniform and realistic traffic pattern. The evaluation results show that it yields higher throughput, lower latency, and lower energy consumption than mesh and ring networks.
Keywords :
network-on-chip; optical fibre networks; telecommunication network routing; telecommunication network topology; telecommunication traffic; ONoC; RPNoC; deadlock free deterministic routing algorithm; electrical control network; optical circuit switching; optical devices; packet switching; realistic traffic pattern; ring based packet switched Optical Network-on-Chip; ring topology; wavelength assignment method; Bandwidth; Clocks; Optical packet switching; Packet switching; Routing; Wavelength assignment; ONoC; WDM; deterministic routing algorithm; packet switching; wavelength assignment;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2376972