WHITE SPACE

ByAduzza bt Abdul Malik (29399)Aimi Syuhaidah bt Mustafa Kamal (29463)Farhanah binti Azmi (30160)Nurul Shafiqah bt Saabi (32506)

OUTLINE

• Introduction

• Infrastructure

• Working Principle (Concept)

• Advantages

• Comparison

• Conclusion

• References

• Refers to the unused TV channels known as buffer channel.

• Used to protect broadcasting interference.• It has been proven those unused spectrum

can be used to provide broadband internet access while operating surrounding TV channels

• Also known as “Super Wi-Fi”

WHITE SPACE What is white space?What is white space?

Figure 1: Usage of TV White Space all over the world [4]

INFRASTRUCTURE

Notify Available Spectrum

How it works?

Figure 2: TV White Space Concept [2]

ADVANTAGES

• i) Greatest Distance

ii) Penetrates Common Obstructions

o

ADVANTAGES

Figure 3: Advantages of TV White Space [2]

iii) Greater Efficiencies

-Deliver more bandwidth

- lower network cost

- lower power consumption

ADVANTAGES

ComparisonWLAN WRAN

Coverage Indoor: up to few 100m

Outdoor: up to few km

Typical: 17 to 33km

Maximum range: up to 100 km

Max Delay Spread, µs Indoor: < 1

Outdoor: 1 to 10

Typical: 11 to 25

Maximum range: 25 to 60

Fast Fourier Transform (FFT) size

64, 128, 256, optional 512 and 1024

2048

Total Bandwidth 5,10,20,40 6, 7, 8

Maximum data rate 12 Mbps 22,69 Mbps

Modulation OFDM OFDM

Table 1: Comparison between WLAN and WRAN [3]

CONCLUSION

• Standard 802.22 has most complete set of cognitive properties

• High speed wireless technology for rural areas.

REFERENCE

[1] Horvitz, R. (2013). TV White Space.

[2] Super Wifi Technology. (2012). Microsoft Research.

[3] IEEE 802.22 Working Group on Wireless Regional Area Networks.

Enabling Rural Broadband Wireless Access Using Cognitive Radio

Technology in TV White Spaces. Recipient of the IEEE SA Emerging

Technology Award

[4] Carlson. (2014). Carlson Wireless Technologies. Retrieved from TV

White Space-Breakthrough Technology: Super Wifi Technology.

(2012). Microsoft Research

Thank You