Distance-aware bidirectional medium access control for mesh wireless network-on-chip architecture

Wireless Network-on-Chip (WiNoC) architectures have recently been proposed to address the scalability limitations of conventional multi-hop wired NoC architectures. The medium access control (MAC) protocol and routing strategy are critical in determining the performance and energy characteristics of...

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Main Author:	Lit, Asrani
Format:	Thesis
Language:	English
Published:	2022
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/102178/1/AsraniLitPSKE2022.pdf.pdf
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id	my-utm-ep.102178
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spelling	my-utm-ep.1021782023-08-13T06:01:07Z Distance-aware bidirectional medium access control for mesh wireless network-on-chip architecture 2022 Lit, Asrani TK Electrical engineering. Electronics Nuclear engineering Wireless Network-on-Chip (WiNoC) architectures have recently been proposed to address the scalability limitations of conventional multi-hop wired NoC architectures. The medium access control (MAC) protocol and routing strategy are critical in determining the performance and energy characteristics of a WiNoC. Most conventional WiNoC MAC use a daisy-chained ring topology, which limits the performance benefit of using a wireless channel since daisy-chaining results in a maximum waiting time when a radio hub misses the token before a packet arrives. Furthermore, even when radio hubs are connected to wired paths, all cores connected to the WiNoC radio hub prioritise transmission through the radio hub, resulting in an uncontrolled load on the wireless channel. Therefore, this thesis’s main objectives are as follows. The first objective is to propose a Bidirectional MAC (B!"#) strategy for WiNoC while the second objective is to propose a Distance-Aware (D") routing scheme in conjunction with B!"# (D"+B!"#) to control a single-hop wireless transmission exclusive to far away destination cores. The wired metal planar interconnect has a higher aggregate bandwidth and is dedicated to short-range communication, whereas single-hop wireless channels are dedicated to long-range transmission beyond a certain distance threshold. To determine the effectiveness of the proposed works, a comprehensive validation was performed using the cycle-accurate Noxim simulator. The proposed strategy was tested and validated in terms of latency, throughput, and energy consumption using synthetic traffic distributions (random, shuffle, transpose, and hotspot) and real-application PARSEC (Barnes) and SPLASH-2 (Fluidanimate) traces. Extensive simulation results show that B!"# can achieve up to 1.84 times faster throughput, while D"+B!"# can improve up to 11.49 times faster than the WiNoC baseline daisy-chained architecture. At the same time, the energy improvement over the baseline daisy-chained at the saturated packet injection load is up to 8% for B!"# and 15% for D"+B!"#. The proposed MAC and routing protocols increase wireless channel utilisation and balance wireless-wired load, resulting in significantly improved WiNoC performance over the baseline architecture. 2022 Thesis http://eprints.utm.my/id/eprint/102178/ http://eprints.utm.my/id/eprint/102178/1/AsraniLitPSKE2022.pdf.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:149161 phd doctoral Universiti Teknologi Malaysia Faculty of Engineering - School of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Lit, Asrani Distance-aware bidirectional medium access control for mesh wireless network-on-chip architecture
description	Wireless Network-on-Chip (WiNoC) architectures have recently been proposed to address the scalability limitations of conventional multi-hop wired NoC architectures. The medium access control (MAC) protocol and routing strategy are critical in determining the performance and energy characteristics of a WiNoC. Most conventional WiNoC MAC use a daisy-chained ring topology, which limits the performance benefit of using a wireless channel since daisy-chaining results in a maximum waiting time when a radio hub misses the token before a packet arrives. Furthermore, even when radio hubs are connected to wired paths, all cores connected to the WiNoC radio hub prioritise transmission through the radio hub, resulting in an uncontrolled load on the wireless channel. Therefore, this thesis’s main objectives are as follows. The first objective is to propose a Bidirectional MAC (B!"#) strategy for WiNoC while the second objective is to propose a Distance-Aware (D") routing scheme in conjunction with B!"# (D"+B!"#) to control a single-hop wireless transmission exclusive to far away destination cores. The wired metal planar interconnect has a higher aggregate bandwidth and is dedicated to short-range communication, whereas single-hop wireless channels are dedicated to long-range transmission beyond a certain distance threshold. To determine the effectiveness of the proposed works, a comprehensive validation was performed using the cycle-accurate Noxim simulator. The proposed strategy was tested and validated in terms of latency, throughput, and energy consumption using synthetic traffic distributions (random, shuffle, transpose, and hotspot) and real-application PARSEC (Barnes) and SPLASH-2 (Fluidanimate) traces. Extensive simulation results show that B!"# can achieve up to 1.84 times faster throughput, while D"+B!"# can improve up to 11.49 times faster than the WiNoC baseline daisy-chained architecture. At the same time, the energy improvement over the baseline daisy-chained at the saturated packet injection load is up to 8% for B!"# and 15% for D"+B!"#. The proposed MAC and routing protocols increase wireless channel utilisation and balance wireless-wired load, resulting in significantly improved WiNoC performance over the baseline architecture.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Lit, Asrani
author_facet	Lit, Asrani
author_sort	Lit, Asrani
title	Distance-aware bidirectional medium access control for mesh wireless network-on-chip architecture
title_short	Distance-aware bidirectional medium access control for mesh wireless network-on-chip architecture
title_full	Distance-aware bidirectional medium access control for mesh wireless network-on-chip architecture
title_fullStr	Distance-aware bidirectional medium access control for mesh wireless network-on-chip architecture
title_full_unstemmed	Distance-aware bidirectional medium access control for mesh wireless network-on-chip architecture
title_sort	distance-aware bidirectional medium access control for mesh wireless network-on-chip architecture
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Engineering - School of Electrical Engineering
publishDate	2022
url	http://eprints.utm.my/id/eprint/102178/1/AsraniLitPSKE2022.pdf.pdf
_version_	1776100864482607104

Distance-aware bidirectional medium access control for mesh wireless network-on-chip architecture

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