Whitespace Evaluation SofTware (WEST) and its applications to whitespace in Canada and Australia
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1 Whitespace Evaluation SofTware (WEST) and its applications to whitespace in Canada and Australia Kate Harrison, Vidya Muthukumar, and Anant Sahai UC Berkeley Session 1b: market and country studies
2 Whitespaces are gaining momentum US 5 GHz NPRM April 2014
3 Whitespaces are gaining momentum US 5 GHz NPRM April 2014 Singapore TVWS June 2014
4 Whitespaces are gaining momentum US 5 GHz NPRM April 2014 Singapore TVWS June 2014 Canada TVWS February 2015
5 Whitespaces are gaining momentum US 5 GHz NPRM April 2014 Singapore TVWS June 2014 Canada TVWS February 2015 US 3.5 GHz April 2015
6 Whitespaces are gaining momentum US 5 GHz NPRM April 2014 Singapore TVWS June 2014 Canada TVWS February 2015 US 3.5 GHz April 2015 US TVWS rule update August 2015
7 How do we quantify whitespaces?
8 How do we quantify whitespaces? Measuring the TV White Space Available for Unlicensed Wireless Broadband (New America Foundation, 2006)
9 Whitespace maps
10 How do we quantify whitespaces? Aggregate interference with FCC and ECC white space usage rules: case study in Finland (Jäntti, et al. 2011)
11 How do we quantify whitespaces? Aggregate interference with FCC and ECC white space usage rules: case study in Finland (Jäntti, et al. 2011) UHF white space in Europe A quantitative study into the potential of the MHz band (Beek, et al. 2011)
12 How do we quantify whitespaces? Aggregate interference with FCC and ECC white space usage rules: case study in Finland (Jäntti, et al. 2011) UHF white space in Europe A quantitative study into the potential of the MHz band (Beek, et al. 2011) Ofcom 2013 consultation
13 How do we quantify whitespaces? Aggregate interference with FCC and ECC white space usage rules: case study in Finland (Jäntti, et al. 2011) UHF white space in Europe A quantitative study into the potential of the MHz band (Beek, et al. 2011) Ofcom 2013 consultation Opportunities for white space usage in Australia Freyens and Loney, 2011
14 Making it easier to quantify whitespaces
15 Motivating example + Public Policy AM/FM whitespace
16 Motivating example + Public Policy AM/FM whitespace Easy to use Free Reliable Flexible/extensible
17 Existing tools
18 Existing tools Many tunable parameters Written in Matlab Software Tool for Assessing Secondary System Opportunities in Spectrum Whitespaces (WoWMoM 2013)
19 Existing tools Many tunable parameters Written in Matlab Not available for public use Software Tool for Assessing Secondary System Opportunities in Spectrum Whitespaces (WoWMoM 2013)
20 WEST (Whitespace Evaluation SofTware) Written in... Posted on... west.kateharrison.net
21 Key features Extensible to other bands Free, easier to integrate (e.g. AWS) Modular, extensible Open-source with GPLv2
22 The real test WEST + first year grad student = 2 papers
23 Using WEST to study Whitespaces in Canada Differences between FCC and Industry Canada ruleset Whitespaces in Australia Amount of contiguous-channel whitespace 14
24 Existing results: Whitespaces in USA Urban areas sparse in whitespace Rural areas abundant in whitespace
25 Applications of WEST: Whitespaces in Canada (under the FCC ruleset)
26 Applications of WEST: Whitespaces in Canada (under the FCC ruleset)
27 Applications of WEST: Whitespaces in Canada (under the FCC ruleset)
28 Applications of WEST: Whitespaces in Canada (under the FCC ruleset) Equal weight map
29 Applications of WEST: Whitespaces in Canada (under the FCC ruleset) Equal weight map Canada has more WS by area
30 Applications of WEST: Whitespaces in Canada (under the FCC ruleset) Equal weight map Canada has more WS by area
31 Applications of WEST: Whitespaces in Canada (under the FCC ruleset) Equal weight map Canada has more WS by area
32 Applications of WEST: Whitespaces in Canada (under the FCC ruleset) Equal weight map Population map Canada has more WS by area
33 Applications of WEST: Whitespaces in Canada (under the FCC ruleset) Equal weight map Population map Canada has more WS by area USA has more WS by population
34 Applications of WEST: Whitespaces in Canada (under the FCC ruleset) Equal weight map Population map Canada has more WS by area USA has more WS by population
35 Applications of WEST: Whitespaces in Canada (under the FCC ruleset) Equal weight map Population map Canada has more WS by area USA has more WS by population
36 Applications of WEST: Whitespaces in Canada (under the FCC ruleset)
37 Applications of WEST: Whitespaces in Canada (under the FCC ruleset) Part 1: Importing data (2 hrs, ~200 lines of code) Part 2: Evaluating WS (~7 lines of code)
38 Applications of WEST: Whitespaces in Canada (under the FCC ruleset) Part 1: Importing data (2 hrs, ~200 lines of code) Boundary file (.SHP file), readable by WEST Part 2: Evaluating WS (~7 lines of code)
39 Applications of WEST: Whitespaces in Canada (under the FCC ruleset) Part 1: Importing data (2 hrs, ~200 lines of code) Boundary file (.SHP file), readable by WEST Listing of Canada TV Stations Part 2: Evaluating WS (~7 lines of code)
40 Applications of WEST: Whitespaces in Australia Procedure similar to Canadian exercise Whitespace evaluated under FCC ruleset WS in Australia more plentiful (some channels are vacant) No candidate ruleset yet
41 Industry Canada (IC) ruleset, released early 2015 How does it compare with FCC s ruleset?
42 The FCC Ruleset Spatial buffer Transmitting secondaries TV station Protected TV receivers 21
43 FCC vs IC: Separation Distances Spatial buffer Transmitting secondaries TV station Protected TV receivers Increased separation distances* 22 *for almost all TV stations
44 FCC vs IC: Separation Distances Spatial buffer Transmitting secondaries TV station Protected TV receivers Increased separation distances* 23 *for almost all TV stations
45 FCC vs IC: Protected Contour Definition Spatial buffer Transmitting secondaries TV station Protected TV receivers Different protected contour 24
46 FCC vs IC: Protected Contour Definition Spatial buffer Transmitting secondaries TV station implies more protection Protected TV receivers 25
47 FCC vs IC: Protected Contour Definition Spatial buffer Transmitting secondaries TV station OR Protected TV receivers 26
48 FCC vs IC: Protected Contour Definition Spatial buffer Transmitting secondaries TV station less protection Protected TV receivers (depending on frequency of channel) 27
49 FCC vs IC: Taboo Channels C+1 Upper freq. buffer zone Frequency C Primary s service area Spatial buffer zone C-1 Space Lower freq. buffer zone
50 ... C+3 C+2 C+1 FCC vs IC: Taboo Channels... Upper freq. buffer zones Frequency C Primary s service area Spatial buffer zone C-1 C-2 C-3... Space... Lower freq. buffer zones
51 Whitespaces in Canada under the FCC ruleset FCC ruleset
52 Whitespaces in Canada under the Industry Canada ruleset IC ruleset
53 Whitespaces in Canada under the Industry Canada ruleset
54 FCC vs IC: Chimera Rulesets
55 FCC vs IC: Chimera Rulesets FCC ruleset
56 FCC vs IC: Chimera Rulesets FCC ruleset Changed protected contour radii
57 FCC vs IC: Chimera Rulesets FCC ruleset Changed protected contour radii Chimera ruleset 1
58 FCC vs IC: Chimera Rulesets FCC ruleset Changed protected contour radii Chimera ruleset 1 Increased separation distances
59 FCC vs IC: Chimera Rulesets FCC ruleset Changed protected contour radii Chimera ruleset 1 Increased separation distances Chimera ruleset 2
60 FCC vs IC: Chimera Rulesets FCC ruleset Changed protected contour radii Chimera ruleset 1 Increased separation distances Chimera ruleset 2 Added taboo channel exclusions
61 FCC vs IC: Chimera Rulesets FCC ruleset Changed protected contour radii Chimera ruleset 1 Increased separation distances Chimera ruleset 2 Added taboo channel exclusions Chimera ruleset 3
62 FCC vs IC: Chimera Rulesets FCC ruleset Changed protected contour radii Chimera ruleset 1 Increased separation distances Chimera ruleset 2 Added taboo channel exclusions Chimera ruleset 3 Added far-side separation distances
63 FCC vs IC: Chimera Rulesets FCC ruleset Changed protected contour radii Chimera ruleset 1 Increased separation distances Chimera ruleset 2 Added taboo channel exclusions Chimera ruleset 3 Added far-side separation distances IC ruleset
64 FCC vs IC: Difference CCDFs
65 FCC vs IC: Difference CCDFs 1. Whitespace map under chimera ruleset 1 2. Whitespace map under chimera ruleset 2
66 FCC vs IC: Difference CCDFs 1. Whitespace map under chimera ruleset Whitespace map under chimera ruleset 2
67 FCC vs IC: Difference CCDFs 1. Whitespace map under chimera ruleset Whitespace map under chimera ruleset 2 Difference map
68 FCC vs IC: Difference CCDFs 1. Whitespace map under chimera ruleset 1 Difference map Whitespace map under chimera ruleset 2
69 FCC vs IC: Difference CCDFs 1. Whitespace map under chimera ruleset 1 Difference map Whitespace map under chimera ruleset 2 Population map
70 FCC vs IC: Difference CCDFs 1. Whitespace map under chimera ruleset 1 Difference map Whitespace map under chimera ruleset 2 Population map
71 FCC vs IC: Difference CCDFs 1. Whitespace map under chimera ruleset 1 Difference map Whitespace map under chimera ruleset 2 Population map
72 FCC vs IC: Difference CCDFs 1. Whitespace map under chimera ruleset 1 Difference map Whitespace map under chimera ruleset 2 Population map
73 FCC vs IC: Results
74 FCC vs IC: Results Canada
75 FCC vs IC: Results Canada
76 FCC vs IC: Results Canada
77 FCC vs IC: Results Canada
78 FCC vs IC: Results Canada USA
79 FCC vs IC: Results Canada USA
80 FCC vs IC: Results Canada USA
81 FCC vs IC: Results Canada USA
82 Applications of WEST: Contiguous channel whitespace availability Important for practical implementation < 50 lines of code
83 Applications of WEST: Contiguous channel whitespace availability Important for practical implementation < 50 lines of code
84 Other uses of WEST Comments to regulators (e.g. quantifying tradeoffs) Reproducible research New economic models
85 Device: fixed Design
86 Design Device: fixed Region: United States
87 Design DataMap2D Device: fixed Region: United States
88 Design DataMap2D Device: fixed Region: United States
89 Design DataMap2D Device: fixed Region: United States Ruleset: FCC
90 Design DataMap2D Device: fixed Region: United States Ruleset: FCC Channel number: 21 DataMap2D
91 Design DataMap2D Device: fixed Region: United States Ruleset: FCC Channel number: 21 DataMap2D Whitespace channel count Whitespace delta map CCDFs by area, population Pareto plots 2D histograms
92 Generating a whitespace map
93 Generating a whitespace map from west.data_management import * from west.data_map import * from west.boundary import BoundaryContinentalUnitedStates, \ BoundaryContinentalUnitedStatesWithStateBoundaries from west.region_united_states import RegionUnitedStates from west.ruleset_fcc2012 import RulesetFcc2012 from west.device import Device Load WEST modules
94 Generating a whitespace map from west.data_management import * from west.data_map import * from west.boundary import BoundaryContinentalUnitedStates, \ BoundaryContinentalUnitedStatesWithStateBoundaries from west.region_united_states import RegionUnitedStates from west.ruleset_fcc2012 import RulesetFcc2012 from west.device import Device test_device = Device(is_portable=False, haat_meters=30) Specify the device Device: fixed
95 Generating a whitespace map from west.data_management import * from west.data_map import * from west.boundary import BoundaryContinentalUnitedStates, \ BoundaryContinentalUnitedStatesWithStateBoundaries from west.region_united_states import RegionUnitedStates from west.ruleset_fcc2012 import RulesetFcc2012 from west.device import Device test_device = Device(is_portable=False, haat_meters=30) datamap_spec = SpecificationDataMap(DataMap2DContinentalUnitedStates, 200, 300) region_map_spec = SpecificationRegionMap(BoundaryContinentalUnitedStates, datamap_spec) Define the grid we ll be working with Continental US DataMap2D (original)
96 Generating a whitespace map from west.data_management import * from west.data_map import * from west.boundary import BoundaryContinentalUnitedStates, \ BoundaryContinentalUnitedStatesWithStateBoundaries from west.region_united_states import RegionUnitedStates from west.ruleset_fcc2012 import RulesetFcc2012 from west.device import Device test_device = Device(is_portable=False, haat_meters=30) datamap_spec = SpecificationDataMap(DataMap2DContinentalUnitedStates, 200, 300) region_map_spec = SpecificationRegionMap(BoundaryContinentalUnitedStates, datamap_spec) is_whitespace_map_spec = SpecificationWhitespaceMap(region_map_spec, RegionCanada, RulesetFcc2012, test_device) is_whitespace_map = is_whitespace_map_spec.fetch_data() generate_whitespace_map(,,, )
97 Generating a whitespace map from west.data_management import * from west.data_map import * from west.boundary import BoundaryContinentalUnitedStates, \ BoundaryContinentalUnitedStatesWithStateBoundaries from west.region_united_states import RegionUnitedStates from west.ruleset_fcc2012 import RulesetFcc2012 from west.device import Device test_device = Device(is_portable=False, haat_meters=30) datamap_spec = SpecificationDataMap(DataMap2DContinentalUnitedStates, 200, 300) region_map_spec = SpecificationRegionMap(BoundaryContinentalUnitedStates, datamap_spec) is_whitespace_map_spec = SpecificationWhitespaceMap(region_map_spec, RegionCanada, RulesetFcc2012, test_device) is_whitespace_map = is_whitespace_map_spec.fetch_data() Specifications are helpers that know how to generate data generate_whitespace_map(,,, )
98 Generating a (Canadian) whitespace map from west.data_management import * from west.data_map import * from west.boundary import BoundaryCanada from west.region_canada import RegionCanada from west.ruleset_fcc2012 import RulesetFcc2012 from west.device import Device test_device = Device(is_portable=False, haat_meters=30) datamap_spec = SpecificationDataMap(DataMap2DCanada, 200, 300) region_map_spec = SpecificationRegionMap(BoundaryCanada, datamap_spec) is_whitespace_map_spec = SpecificationWhitespaceMap(region_map_spec, RegionCanada, RulesetFcc2012, test_device) is_whitespace_map = is_whitespace_map_spec.fetch_data()
99 Generating a whitespace map from west.data_management import * from west.data_map import * from west.boundary import BoundaryContinentalUnitedStates, \ BoundaryContinentalUnitedStatesWithStateBoundaries from west.region_united_states import RegionUnitedStates from west.ruleset_fcc2012 import RulesetFcc2012 from west.device import Device test_device = Device(is_portable=False, haat_meters=30) datamap_spec = SpecificationDataMap(DataMap2DContinentalUnitedStates, 200, 300) region_map_spec = SpecificationRegionMap(BoundaryContinentalUnitedStates, datamap_spec) is_whitespace_map_spec = SpecificationWhitespaceMap(region_map_spec, RegionUnitedStates, RulesetFcc2012, test_device) is_whitespace_map = is_whitespace_map_spec.fetch_data() total_whitespace_channels = is_whitespace_map.sum_all_layers() is_in_region_map = region_map_spec.fetch_data() plot = total_whitespace_channels.make_map(is_in_region_map=is_in_region_map)
100 Generating a whitespace map from west.data_management import * from west.data_map import * from west.boundary import BoundaryContinentalUnitedStates, \ BoundaryContinentalUnitedStatesWithStateBoundaries from west.region_united_states import RegionUnitedStates from west.ruleset_fcc2012 import RulesetFcc2012 from west.device import Device test_device = Device(is_portable=False, haat_meters=30) datamap_spec = SpecificationDataMap(DataMap2DContinentalUnitedStates, 200, 300) region_map_spec = SpecificationRegionMap(BoundaryContinentalUnitedStates, datamap_spec) is_whitespace_map_spec = SpecificationWhitespaceMap(region_map_spec, RegionUnitedStates, RulesetFcc2012, test_device) is_whitespace_map = is_whitespace_map_spec.fetch_data() total_whitespace_channels = is_whitespace_map.sum_all_layers() is_in_region_map = region_map_spec.fetch_data() plot = total_whitespace_channels.make_map(is_in_region_map=is_in_region_map) plot.add_boundary_outlines(boundary=boundarycontinentalunitedstateswithstateboundaries()) plot.set_boundary_color('k') plot.set_boundary_linewidth( 1') Add the state outlines (in black)
101 Generating a whitespace map from west.data_management import * from west.data_map import * from west.boundary import BoundaryContinentalUnitedStates, \ BoundaryContinentalUnitedStatesWithStateBoundaries from west.region_united_states import RegionUnitedStates from west.ruleset_fcc2012 import RulesetFcc2012 from west.device import Device test_device = Device(is_portable=False, haat_meters=30) datamap_spec = SpecificationDataMap(DataMap2DContinentalUnitedStates, 200, 300) region_map_spec = SpecificationRegionMap(BoundaryContinentalUnitedStates, datamap_spec) is_whitespace_map_spec = SpecificationWhitespaceMap(region_map_spec, RegionUnitedStates, RulesetFcc2012, test_device) is_whitespace_map = is_whitespace_map_spec.fetch_data() total_whitespace_channels = is_whitespace_map.sum_all_layers() is_in_region_map = region_map_spec.fetch_data() plot = total_whitespace_channels.make_map(is_in_region_map=is_in_region_map) plot.add_boundary_outlines(boundary=boundarycontinentalunitedstateswithstateboundaries()) plot.set_boundary_color('k') plot.set_boundary_linewidth( 1') plot.save("number of TVWS channels in the United States.png") Save the plot
102 Important WEST supports existing research Competition is good
103 Many exciting directions Expand supported regions ( only US, Canada, and Australia today) More propagation models (F-curves today) More rulesets (e.g. DSA model rules) Applied to another band New economic models Integrated with the cloud
104 Questions? west.kateharrison.net
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