{"id":{"repo_id":"wichita-thes","oai_identifier":"oai:soar.wichita.edu:10057/15903"},"canonical_url":"https://search.dev.ndltd.org/etd/wichita-thes/oai:soar.wichita.edu:10057/15903","repository":{"repo_id":"wichita-thes","name":"Wichita State University","base_url":"https://soar.wichita.edu/oai/request"},"display":{"title":"Directory-based wired-wireless network-on-chip architectures to improve performance","abstract":"Network-on-Chip (NoC) architectures have emerged as a promising technology for modern computer systems to address the design challenges of high-performance computing systems. Wireless NoC (WNoC) architectures are introduced to improve performance by reducing the core-to-core communication latency. Conventional WNoCs broadcast messages that increase bandwidth-traffic, communication latency, and power consumption. Studies show that directory-based schemes have potential to reduce bandwidth-traffic and improve performance. This work introduces a WNoC architecture with centralized directory (WNoC-CD) and a WNoC architecture with distributed directories (WNoC-DDs) to enhance faster execution by reducing bandwidth-traffic and communication latency. The impacts of uniform and non-uniform distribution of cores into subnets on performance are also studied. VisualSim software package is used to model and simulate a traditional mesh and the proposed WNoC-CD and WNoC-DDs architectures by processing different communication scenarios. Experimental results show that the proposed WNoC-DDs reduces communication latency up to 20.54% and 5.40%, respectively, when compared to mesh and WNoC-CD. Similarly, the proposed WNoC-DDs reduces power consumption up to 73.56% and 19.97%, respectively, when compared to mesh and WNoC-CD. In a WNoC-DDs, each subnet works independently and resolves communication issues simultaneously. Experimental results also show that the non-uniform subnets help reduce communication latency up to 11.11% and reduces power consumption up to 14.76% when compared with the uniform subnets. Non-uniform partitioning provides flexibility of allocating tasks to different sized subnets as needed and thus improves the core utilization to a greater extent.","abstract_html":"Network-on-Chip (NoC) architectures have emerged as a promising technology for modern computer systems to address the design challenges of high-performance computing systems. Wireless NoC (WNoC) architectures are introduced to improve performance by reducing the core-to-core communication latency. Conventional WNoCs broadcast messages that increase bandwidth-traffic, communication latency, and power consumption. Studies show that directory-based schemes have potential to reduce bandwidth-traffic and improve performance. This work introduces a WNoC architecture with centralized directory (WNoC-CD) and a WNoC architecture with distributed directories (WNoC-DDs) to enhance faster execution by reducing bandwidth-traffic and communication latency. The impacts of uniform and non-uniform distribution of cores into subnets on performance are also studied. VisualSim software package is used to model and simulate a traditional mesh and the proposed WNoC-CD and WNoC-DDs architectures by processing different communication scenarios. Experimental results show that the proposed WNoC-DDs reduces communication latency up to 20.54% and 5.40%, respectively, when compared to mesh and WNoC-CD. Similarly, the proposed WNoC-DDs reduces power consumption up to 73.56% and 19.97%, respectively, when compared to mesh and WNoC-CD. In a WNoC-DDs, each subnet works independently and resolves communication issues simultaneously. Experimental results also show that the non-uniform subnets help reduce communication latency up to 11.11% and reduces power consumption up to 14.76% when compared with the uniform subnets. Non-uniform partitioning provides flexibility of allocating tasks to different sized subnets as needed and thus improves the core utilization to a greater extent.","abstract_has_math":false,"creators":["Chidella, Kishore K."],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018-12","date_published":"2018-12","updated_at":"2026-07-24T06:06:23Z","subjects":[],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["hdl:10057/15903"],"render_values":[{"text":"hdl:10057/15903","href":null,"code":true}]}]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.issued","label":"Date","values":["2018-12"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["hdl:10057/15903"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.other","label":"Dc Description Other","values":["Network-on-Chip (NoC) architectures have emerged as a promising technology for modern computer systems to address the design challenges of high-performance computing systems. Wireless NoC (WNoC) architectures are introduced to improve performance by reducing the core-to-core communication latency. Conventional WNoCs broadcast messages that increase bandwidth-traffic, communication latency, and power consumption. Studies show that directory-based schemes have potential to reduce bandwidth-traffic and improve performance. This work introduces a WNoC architecture with centralized directory (WNoC-CD) and a WNoC architecture with distributed directories (WNoC-DDs) to enhance faster execution by reducing bandwidth-traffic and communication latency. The impacts of uniform and non-uniform distribution of cores into subnets on performance are also studied. VisualSim software package is used to model and simulate a traditional mesh and the proposed WNoC-CD and WNoC-DDs architectures by processing different communication scenarios. Experimental results show that the proposed WNoC-DDs reduces communication latency up to 20.54% and 5.40%, respectively, when compared to mesh and WNoC-CD. Similarly, the proposed WNoC-DDs reduces power consumption up to 73.56% and 19.97%, respectively, when compared to mesh and WNoC-CD. In a WNoC-DDs, each subnet works independently and resolves communication issues simultaneously. Experimental results also show that the non-uniform subnets help reduce communication latency up to 11.11% and reduces power consumption up to 14.76% when compared with the uniform subnets. Non-uniform partitioning provides flexibility of allocating tasks to different sized subnets as needed and thus improves the core utilization to a greater extent."]},{"key":"dc:title","label":"Title","values":["Directory-based wired-wireless network-on-chip architectures to improve performance"]}]}],"canonical_facts":{"dc:date.issued":["2018-12"],"dc:description.other":["Network-on-Chip (NoC) architectures have emerged as a promising technology for modern computer systems to address the design challenges of high-performance computing systems. Wireless NoC (WNoC) architectures are introduced to improve performance by reducing the core-to-core communication latency. Conventional WNoCs broadcast messages that increase bandwidth-traffic, communication latency, and power consumption. Studies show that directory-based schemes have potential to reduce bandwidth-traffic and improve performance. This work introduces a WNoC architecture with centralized directory (WNoC-CD) and a WNoC architecture with distributed directories (WNoC-DDs) to enhance faster execution by reducing bandwidth-traffic and communication latency. The impacts of uniform and non-uniform distribution of cores into subnets on performance are also studied. VisualSim software package is used to model and simulate a traditional mesh and the proposed WNoC-CD and WNoC-DDs architectures by processing different communication scenarios. Experimental results show that the proposed WNoC-DDs reduces communication latency up to 20.54% and 5.40%, respectively, when compared to mesh and WNoC-CD. Similarly, the proposed WNoC-DDs reduces power consumption up to 73.56% and 19.97%, respectively, when compared to mesh and WNoC-CD. In a WNoC-DDs, each subnet works independently and resolves communication issues simultaneously. Experimental results also show that the non-uniform subnets help reduce communication latency up to 11.11% and reduces power consumption up to 14.76% when compared with the uniform subnets. Non-uniform partitioning provides flexibility of allocating tasks to different sized subnets as needed and thus improves the core utilization to a greater extent."],"dc:identifier":["hdl:10057/15903"],"dc:title":["Directory-based wired-wireless network-on-chip architectures to improve performance"],"dc:type":["Dissertation"]},"updated_at":"2026-07-24T06:06:23Z"}