CRC-COVLAB Coverage Prediction Software Demonstration Seminar presented at Industry Canada.

1. Ottawa, Feb 4 2010
Seminar Presented at Industry Canada
CRC-COVLAB
Coverage Prediction Software
Logiciel de Prédiction de Couverture
Presented by:
Doris Camiré

2. Outline
• Overview of CRC-COVLAB software
• Show some of the most recent coverage studies done at CRC (case
studies on DAB, HD Radio/FM-IBOC, ATSC-M/H).
• Live CRC-COVLAB demo: building a project and showing custom work
done for CBC/Radio-Canada, CRTC and COFETEL.
• Live demo of free online web coverage service CRC-COVWEB.
• Conclusion and questions.

3. What is CRC-COVLAB?
• Advanced scientific modelling software that performs coverage
prediction and interference analysis for various types of communication
systems.
• Terrestrial, satellite applications?
• Broadcast, wireless, telecom applications?
• Public safety applications (national defence, customs agency, police
force)

4. History
• Started as a small research project.
• Simulate Single Frequency Networks (SFN) for broadcast application.
• Grew to a sophisticated software.

5. Our Clients
Licensed throughout the world: North, Central, and South America, as well as
Europe, Asia and Australia.
Clients: governments, broadcast organisation, consultants, research labs, universities,
national defense and public safety agencies.

6. Database Compatibility
• Digital Elevation Models: Covers the world (DTED, USGS, CDED,
Computamaps, GLOBE30, SRTM1, SRTM3, and CRC (500m)).
• Land Cover Models: Covers the world (DTED, Computamaps, CRC
(500m)).
• Ground Conductivity Models: Covers the world (FCC, ITU...).
• Population Models: Covers North America (Canada, US, Mexico).
• Broadcast Database Models: Covers North America (Canada, US,
Mexico).

7. Propagation Models
• CRC-PREDICT v.3.21, v.2.08r2, v.2.07
• Okumura/Hata
• ITU-R Rec. 370-7
• ITU-R Rec. 1146
• ITU-R Rec. 1546
• ITU-R Rec. 368-8
• ITU-R Rec. 1147
• Egli
• TIREM
• Longly-Rice v.1.2.2
• FCC point-to-point
• F(50,50) curves
• Freespace

8. DAB Digital Radio
Coverage Study in Mexico City

9. Simulation Parameters
•Propagation Model: CRC-PREDICT v. 2.07
•Receiver local service availability: 99%
•Terrain elevation database: SRTM3 (3arc/sec)
•Terrain type database: ComputaMaps 250m

10. Main transmitter on the World Trade Centre (400 w)
Legend
Outdoor
reception
14dB C/(N+I)
Indoor
reception
24dB C/(N+I)

11. Main transmitter on WTC (400 w)
with one Repeater on GRC (100 w)
Legend
Outdoor
reception
14dB C/(N+I)
Indoor
reception
24dB C/(N+I)

12. Main Transmitter on WTC (400 w)
With Repeater on GRC (400 w)
Legend
Outdoor
reception
14dB C/(N+I)
Indoor
reception
24dB C/(N+I)

13. Main Transmitter on WTC (400 w)
With Repeaters on GRC (400 w) and Chiquihuite (400 w)
Without Synchronization
Legend
Outdoor
reception
14dB C/(N+I)
Indoor
reception
24dB C/(N+I)

14. Main Transmitter on WTC (400 w)
With Repeaters on GRC (400 w) and Chiquihuite (400 w)
With Synchronization
Legend
Outdoor
reception
14dB C/(N+I)
Indoor
reception
24dB C/(N+I)

15. Main Transmitter on GRC (400 w)
With Repeaters on Torre Latino (400 w) and Plutarco (400 w)
With Synchronization
Legend
Outdoor
reception
14dB C/(N+I)
Indoor
reception
24dB C/(N+I)

16. Main Transmitter on GRC (400 w)
With Repeaters on Torre Latino (400 W) and Plutarco (25 W)
With Synchronization
Legend
Outdoor
reception
14dB C/(N+I)
Indoor
reception
24dB C/(N+I)

17. Main Transmitter on GRC (400 w)
With Repeaters on Torre Latino (400 w) and WTC (25 Watt)
With Synchronization
Legend
Outdoor
reception
14dB C/(N+I)
Service
Availability
99%
Indoor
reception
24dB C/(N+I)

18. Main Transmitter on GRC (400 w)
With Repeaters on Torre Latino (400 w) and WTC (25 Watt)
With Synchronization
Legend
Outdoor
reception
14dB C/(N+I)
Service
Availability
95%
Indoor
reception
24dB C/(N+I)

19. Main Transmitter on GRC (400 w)
With Repeaters on Torre Latino (400 w) and WTC (25 Watt)
With Synchronization
Legend
Outdoor
reception
14dB C/(N+I)
Service
Availability
90%
Indoor
reception
24dB C/(N+I)

20. HD Radio / FM-IBOC
Module in CRC-COVLAB

21. United States is going with HD Radio (FM-IBOC)

22. What happens to the stations’ coverage
at the Canada/US border?

23. What happens to the stations’ coverage
at the Canada/US border?

24. CBBL’s Coverage Considering Surrounding
Analog Interference
Need to develop a
method to assess the
effect of US stations
turning on the HD
digital signal.

25. CRC performed laboratory tests
on the FM-IBOC technology

26. Implementation of the FM-IBOC module in
CRC-COVLAB

27. FM-IBOC Module Accuracy
Does the module perform?
Let’s take it for a test drive!
Need field measurement data to compare with the simulation.
27

28. HD Radio / FM-IBOC Measurement
Comparison with Simulation

29. iBiquity Drive Tests
Throughout the US

30. KOST Los Angeles, California, Route @ -20 dBc
Digital Power 20 dB Below Analog Power

31. KOST Los Angeles, California, @ -20 dBc
Digital Power 20 dB Below Analog Power

32. KOST Los Angeles, California @ -10 dBc
Digital Power 10 dB Below Analog Power
Transmitter Power
Increased by 10 dB

33. WRAT Point Pleasant, NJ @ -20 dBc Digital Power 20 dB Below Analog Power
33

34. WRAT Point Pleasant, NJ @ -10 dBc Digital Power 10 dB Below Analog Power
Transmitter Power
Increased by 10 dB
34

35. NPR Drive Tests
Throughout the US

36. KQEI North Highlands, California @ -20 dBc Digital Power 20 dB Below Analog Power
36

37. WBEZ Chicago, Illinois @ - 20 dBc Digital Power 20 dB Below Analog Power
37

38. Canada/US Border Interference Analysis
HD Radio

39. 100 5
90
80 4
70
60 3
50
40 2
30
20 1
10
0 0
Km2 Population

40. 1st Adjacent Interference
From US (Analog FM)
100 5
90
80 4
70
60 3
50
40 2
30
20 1
10
0 0
Km2 Population

41. 1st Adjacent Interference
From Detroit, US (IBOC Turned On)
100 5
90
80 4
70
60 3
50
40 2
30
20 1
10
0 0
Km2 Population

42. 1st Adjacent Interference
From US
100 5
90
80 4
70
60 3
50
40 2
30
20 1
10
0 0
Km2 Population

43. 1st Adjacent Interference
From US
100 5
90
80 4
70
60 3
50
40 2
30
20 1
10
0 0
Km2 Population

44. 1st Adjacent Interference
From US
100 5
90
80 4
70
60 3
50
40 2
30
20 1
10
0 0
Km2 Population

45. 1st Adjacent Interference
From US
100 5
90
80 4
70
60 3
50
40 2
30
20 1
10
0 0
Km2 Population

46. 100
Stereo
5
90
80 4
70
60 3
50
40 2
30
20 1
10
0 0
Km2 Population
100
Mono
5
90
80 4
70
60 3
50
40 2
30
20 1
10
0 0
Km2 Population

47. 100
Stereo
5
90
80 4
70
60 3
50 Loss: Loss:
40 2
~5,500 km2 ~300,000 people
30
20 1
10
0 0
Km2 Population
100
Mono
5
90
80 4
70
60 3
50
40 2
Loss: Loss:
30
~12,500 km2
20 1
~140,000 people
10
0 0
Km2 Population

48. Mobile DTV
ATSC M/H
Coverage Prediction

49. Philadelphia, Pennsylvania

50. Philadelphia, Pennsylvania

51. Philadelphia, Pennsylvania

52. ATSC Digital Television
Fixed Reception Coverage
ATSC
Analog

53. ATSC M/H Mobile Digital Television
Mobile Reception Coverage
ATSC
ATSC Mobile
Analog

54. ATSC M/H Mobile Digital Television
Adding a Second Transmitter
Increasing Coverage
ATSC
ATSC Mobile
Analog

55. ATSC M/H Mobile Digital Television
Causing Interference to
ATSC Traditional Digital Television
ATSC
ATSC Mobile
Analog

56. www.crc.ca/covlab
Thank you!
Merci!