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A Study of Timing Constraints and SAS Overload of SAS-CBSD Protocol in the CBRS Band

Published by National Institute of Standards and Technology | National Institute of Standards and Technology | Catalog Last Checked: September 10, 2026 at 05:51 PM | Dataset Last Updated: September 11, 2019
This research work studied the effect of timing constraint and overloading of Spectrum Access System (SAS) on the SAS-CBSD protocol. Specifically, it studies how Heartbeat and Grant Request fail as number of CBSDs served by a SAS becomes large for a given service rate. It also looks at the time taken by CBSDs to vacate a channel (on which an incumbent has appeared) at different Heartbeat Interval. These study results are captured in the following files. (1) Number of CBSD vs number of Heartbeat timeout when SAS service rate is 40 requests/sec (2) Number of CBSD vs number of Heartbeat timeout when SAS service rate is 60 requests/sec (3) Number of CBSD vs number of failed grants when SAS service rate is 40 requests/sec (4) Number of CBSD vs number of failed grants when SAS service rate is 60 requests/sec (5) CDF of duration of CBSDs vacating a channel when number of CBSD=700, mean heartbeat interval = 90 s (6) CDF of duration of CBSDs vacating a channel when number of CBSD=1200, mean heartbeat interval = 150 s (7) CDF of duration of CBSDs vacating a channel when number of CBSD=1500, mean heartbeat interval = 220 s

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  • DOI Access for A Study of Timing Constraints and SAS Overload of SAS-CBSD Protocol in the CBRS Band

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  • CDF of duration of CBSD vacating a channel

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  • CDF of duration of CBSD vacating a channel

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  • CDF of duration of CBSD vacating a channel

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  • Number of CBSD vs number of Grant timeout when SAS service rate is 40 req/s

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  • Number of CBSD vs number of Grant timeout when SAS service rate is 60 req/s

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  • Number of CBSD vs number of Heartbeat timeout when SAS service rate is 40 req/s

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  • Number of CBSD vs number of Heartbeat timeout when SAS service rate is 60 req/s

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  • SHA256 File for Number of CBSD vs number of Grant timeout when SAS service rate is 40 req/s

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  • SHA256 File for Number of CBSD vs number of Grant timeout when SAS service rate is 60 req/s

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  • SHA256 File for Number of CBSD vs number of Heartbeat timeout when SAS service rate is 40 req/s

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  • SHA256 File for Number of CBSD vs number of Heartbeat timeout when SAS service rate is 60 req/s

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  • SHA256 File for CDF of duration of CBSD vacating a channel

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  • SHA256 File for CDF of duration of CBSD vacating a channel

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  • SHA256 File for CDF of duration of CBSD vacating a channel

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "006:55"
]
contactPoint 
{
  "fn": "Anirudha Sahoo",
  "hasEmail": "mailto:anirudha.sahoo@nist.gov"
}
description This research work studied the effect of timing constraint and overloading of Spectrum Access System (SAS) on the SAS-CBSD protocol. Specifically, it studies how Heartbeat and Grant Request fail as number of CBSDs served by a SAS becomes large for a given service rate. It also looks at the time taken by CBSDs to vacate a channel (on which an incumbent has appeared) at different Heartbeat Interval. These study results are captured in the following files. (1) Number of CBSD vs number of Heartbeat timeout when SAS service rate is 40 requests/sec (2) Number of CBSD vs number of Heartbeat timeout when SAS service rate is 60 requests/sec (3) Number of CBSD vs number of failed grants when SAS service rate is 40 requests/sec (4) Number of CBSD vs number of failed grants when SAS service rate is 60 requests/sec (5) CDF of duration of CBSDs vacating a channel when number of CBSD=700, mean heartbeat interval = 90 s (6) CDF of duration of CBSDs vacating a channel when number of CBSD=1200, mean heartbeat interval = 150 s (7) CDF of duration of CBSDs vacating a channel when number of CBSD=1500, mean heartbeat interval = 220 s
distribution 
[
  {
    "title": "DOI Access for A Study of Timing Constraints and SAS Overload of SAS-CBSD Protocol in the CBRS Band",
    "accessURL": "https://doi.org/10.18434/M32125"
  },
  {
    "title": "CDF of duration of CBSD vacating a channel",
    "mediaType": "application/octet-stream",
    "description": "CDF of duration of CBSD vacating a channel when the number of CBSD=1200, mean Heartbeat Interval = 150 s",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cdf_timeout_midas_1.dat"
  },
  {
    "title": "CDF of duration of CBSD vacating a channel",
    "mediaType": "application/octet-stream",
    "description": "CDF of duration of CBSD vacating a channel when the number of CBSD=1500, mean Heartbeat Interval = 220 s",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cdf_timeout_midas_2.dat"
  },
  {
    "title": "CDF of duration of CBSD vacating a channel",
    "mediaType": "application/octet-stream",
    "description": "CDF of duration of CBSD vacating a channel when the number of CBSD=700, mean Heartbeat Interval = 90 s",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cdf_timeout_midas_0.dat"
  },
  {
    "title": "Number of CBSD vs number of Grant timeout when SAS service rate is 40 req/s",
    "mediaType": "application/octet-stream",
    "description": "Number of CBSD vs number of Grant timeout when SAS service rate is 40 req/s",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cbsd_vs_grant_timeout_mu40.dat"
  },
  {
    "title": "Number of CBSD vs number of Grant timeout when SAS service rate is 60 req/s",
    "mediaType": "application/octet-stream",
    "description": "Number of CBSD vs number of Grant timeout when SAS service rate is 60 req/s",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cbsd_vs_grant_timeout_mu60.dat"
  },
  {
    "title": "Number of CBSD vs number of Heartbeat timeout when SAS service rate is 40 req/s",
    "mediaType": "application/octet-stream",
    "description": "Number of CBSD vs number of Heartbeat timeout when SAS service rate is 60 req/s",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cbsd_vs_hb_timeout_mu40.dat"
  },
  {
    "title": "Number of CBSD vs number of Heartbeat timeout when SAS service rate is 60 req/s",
    "mediaType": "application/octet-stream",
    "description": "Number of CBSD vs number of Heartbeat timeout when SAS service rate is 60 req/s",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cbsd_vs_hb_timeout_mu60.dat"
  },
  {
    "title": "SHA256 File for Number of CBSD vs number of Grant timeout when SAS service rate is 40 req/s",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cbsd_vs_grant_timeout_mu40.dat.sha256"
  },
  {
    "title": "SHA256 File for Number of CBSD vs number of Grant timeout when SAS service rate is 60 req/s",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cbsd_vs_grant_timeout_mu60.dat.sha256"
  },
  {
    "title": "SHA256 File for Number of CBSD vs number of Heartbeat timeout when SAS service rate is 40 req/s",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cbsd_vs_hb_timeout_mu40.dat.sha256"
  },
  {
    "title": "SHA256 File for Number of CBSD vs number of Heartbeat timeout when SAS service rate is 60 req/s",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cbsd_vs_hb_timeout_mu60.dat.sha256"
  },
  {
    "title": "SHA256 File for CDF of duration of CBSD vacating a channel",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cdf_timeout_midas_0.dat.sha256"
  },
  {
    "title": "SHA256 File for CDF of duration of CBSD vacating a channel",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cdf_timeout_midas_1.dat.sha256"
  },
  {
    "title": "SHA256 File for CDF of duration of CBSD vacating a channel",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2125/cdf_timeout_midas_2.dat.sha256"
  }
]
identifier ark:/88434/mds2-2125
issued 2019-11-12
keyword 
[
  "3.5 GHz; CBRS; SAS-CBSD protocol",
  "Heartbeat Interval;"
]
landingPage https://data.nist.gov/od/id/mds2-2125
language 
[
  "en"
]
license https://www.nist.gov/open/license
modified 2019-09-11 00:00:00
programCode 
[
  "006:045"
]
publisher 
{
  "name": "National Institute of Standards and Technology",
  "@type": "org:Organization"
}
theme 
[
  "Advanced Communications:Wireless (RF)",
  "Information Technology:Mobile"
]
title A Study of Timing Constraints and SAS Overload of SAS-CBSD Protocol in the CBRS Band

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