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Proceedings Paper

Resource reservation scheme in nesting ring optical network on chip
Author(s): Huawei Lian; Danke Hong; Hanqi Zhao; Bin Wu; Wenzhe Li; Shan Yin; Shanguo Huang
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Paper Abstract

Optical network on chip (ONoC) is an emerging paradigm for multi-core processor system for providing high bandwidth and low power consumption. The scalability of the multi-core processor system is limited by process yield and power density of the single chip. Multi-chip ONoC, which aggregate several smaller chips together, is proposed to overcome this problem. Nesting Ring Optical Network on Chip (NRO) is a multi-chip architecture, which has good performance in terms of throughput and delay. When the NRO scales to a large size ONoC architecture, it may suffer from severe congestion. We propose a novel resource reservation scheme for NRO to alleviate this problem. The resource reservation includes resource planning strategy and a Resource Allocation strategy. With our observation, lots of contentions occur in intersection nodes due to the lack of resource, because intersection nodes have heavier traffic than normal nodes. The proposed resource planning strategy can offer more optical resource for intersection nodes specifically, and keep the original number of wavelengths in the normal nodes, which maintains good power efficiency of NRO. Additionally, unreasonable resource allocation method will lead to contentions. We employ backward resource reservation method in NRO architecture to avoid contentions in intermediate nodes of the path. The simulation results show that the proposed resource reservation scheme can reduce 85% blocking rate and 12% ETE delay compared with convention scheme at an injection rate of 0.4.

Paper Details

Date Published: 14 February 2019
PDF: 4 pages
Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110480C (14 February 2019); doi: 10.1117/12.2518323
Show Author Affiliations
Huawei Lian, China Southern Power Grid Co., Ltd. (China)
Danke Hong, China Southern Power Grid Co., Ltd. (China)
Hanqi Zhao, China Southern Power Grid Co., Ltd. (China)
Bin Wu, China Southern Power Grid Co., Ltd. (China)
Wenzhe Li, Beijing Univ. of Posts and Telecommunications (China)
Shan Yin, Beijing Univ. of Posts and Telecommunications (China)
Shanguo Huang, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 11048:
17th International Conference on Optical Communications and Networks (ICOCN2018)
Zhaohui Li, Editor(s)

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