Performance Comparison of R-PHY and R-MACPHY Modular Cable Access Network Architectures.
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| Title: | Performance Comparison of R-PHY and R-MACPHY Modular Cable Access Network Architectures. |
|---|---|
| Authors: | Alharbi, Ziyad1, Thyagaturu, Akhilesh S.1, Reisslein, Martin1, ElBakoury, Hesham2, Zheng, Ruobin3 |
| Source: | IEEE Transactions on Broadcasting. Mar2018, Vol. 64 Issue 1, p128-145. 18p. |
| Subjects: | Cable modems, Bandwidths, Computer networks, Modems, Signal processing |
| Abstract: | Emerging modular cable network architectures distribute some cable headend functions to remote nodes that are located close to the broadcast cable links reaching the cable modems (CMs) in the subscriber homes and businesses. In the remote-PHY (R-PHY) architecture, an R-PHY device conducts the physical layer processing for the analog cable transmissions, while the headend runs the data over cable service interface specification (DOCSIS) medium access control (MAC) for the upstream transmissions of the distributed CMs over the shared cable link. In contrast, in the remote MACPHY (R-MACPHY) architecture, an R-MACPHY device (RMD) conducts both the physical and MAC layer processing. In this paper, we conduct a comprehensive performance comparison of the R-PHY and R-MACPHY architectures. We first develop analytical delay models for the polling-based MAC with gated bandwidth allocation of Poisson traffic in the R-PHY and R-MACPHY architectures. We then conduct extensive simulations to assess the accuracy of the analytical model and to evaluate the delay-throughput performance of the R-PHY and R-MACPHY architectures for a wide range of deployment and operating scenarios. Our evaluations include long converged interconnect network (CIN) distances between remote nodes and headend, bursty self-similar traffic, and double-phase polling to mask long CIN propagation distances. We find that for long CIN distances above 100 miles, the R-MACPHY architecture achieves significantly shorter mean upstream packet delays than the R-PHY architecture, especially for bursty traffic. Our extensive comparative R-PHY and R-MACPHY evaluation can serve as a basis for the planning of modular broadcast cable based access networks. [ABSTRACT FROM PUBLISHER] |
| Copyright of IEEE Transactions on Broadcasting is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 128321550 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Performance Comparison of R-PHY and R-MACPHY Modular Cable Access Network Architectures. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Alharbi%2C+Ziyad%22">Alharbi, Ziyad</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Thyagaturu%2C+Akhilesh+S%2E%22">Thyagaturu, Akhilesh S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Reisslein%2C+Martin%22">Reisslein, Martin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22ElBakoury%2C+Hesham%22">ElBakoury, Hesham</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Zheng%2C+Ruobin%22">Zheng, Ruobin</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22IEEE+Transactions+on+Broadcasting%22">IEEE Transactions on Broadcasting</searchLink>. Mar2018, Vol. 64 Issue 1, p128-145. 18p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Cable+modems%22">Cable modems</searchLink><br /><searchLink fieldCode="DE" term="%22Bandwidths%22">Bandwidths</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+networks%22">Computer networks</searchLink><br /><searchLink fieldCode="DE" term="%22Modems%22">Modems</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+processing%22">Signal processing</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Emerging modular cable network architectures distribute some cable headend functions to remote nodes that are located close to the broadcast cable links reaching the cable modems (CMs) in the subscriber homes and businesses. In the remote-PHY (R-PHY) architecture, an R-PHY device conducts the physical layer processing for the analog cable transmissions, while the headend runs the data over cable service interface specification (DOCSIS) medium access control (MAC) for the upstream transmissions of the distributed CMs over the shared cable link. In contrast, in the remote MACPHY (R-MACPHY) architecture, an R-MACPHY device (RMD) conducts both the physical and MAC layer processing. In this paper, we conduct a comprehensive performance comparison of the R-PHY and R-MACPHY architectures. We first develop analytical delay models for the polling-based MAC with gated bandwidth allocation of Poisson traffic in the R-PHY and R-MACPHY architectures. We then conduct extensive simulations to assess the accuracy of the analytical model and to evaluate the delay-throughput performance of the R-PHY and R-MACPHY architectures for a wide range of deployment and operating scenarios. Our evaluations include long converged interconnect network (CIN) distances between remote nodes and headend, bursty self-similar traffic, and double-phase polling to mask long CIN propagation distances. We find that for long CIN distances above 100 miles, the R-MACPHY architecture achieves significantly shorter mean upstream packet delays than the R-PHY architecture, especially for bursty traffic. Our extensive comparative R-PHY and R-MACPHY evaluation can serve as a basis for the planning of modular broadcast cable based access networks. [ABSTRACT FROM PUBLISHER] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of IEEE Transactions on Broadcasting is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1109/TBC.2017.2711145 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 128 Subjects: – SubjectFull: Cable modems Type: general – SubjectFull: Bandwidths Type: general – SubjectFull: Computer networks Type: general – SubjectFull: Modems Type: general – SubjectFull: Signal processing Type: general Titles: – TitleFull: Performance Comparison of R-PHY and R-MACPHY Modular Cable Access Network Architectures. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Alharbi, Ziyad – PersonEntity: Name: NameFull: Thyagaturu, Akhilesh S. – PersonEntity: Name: NameFull: Reisslein, Martin – PersonEntity: Name: NameFull: ElBakoury, Hesham – PersonEntity: Name: NameFull: Zheng, Ruobin IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 00189316 Numbering: – Type: volume Value: 64 – Type: issue Value: 1 Titles: – TitleFull: IEEE Transactions on Broadcasting Type: main |
| ResultId | 1 |
