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Busy tone based coexistence algorithm for WRAN and WLAN systems in TV white space

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Date
2018
Author
Karatalay, Onur
Erküçük, Serhat
Baykaş, Tunçer
Abstract
TV White Space (TVWS) refers to frequency band reserved only for licensed terrestrial TV broadcasting and is opened to unlicensed use under regulatory conditions. While regulations protect licensed systems from interference interference among unlicensed systems is left mainly to manufacturers. Consequently there is a need to develop new coexistence approaches between TVWS networks. Busy tone broadcasting is a coexistence method which can be used by TVWS networks to announce the selected frequency band is occupied. In this paper a busy tone based coexistence algorithm is proposed for IEEE 802.11af and IEEE 802.22 networks and analyzed by considering different client distributions experiencing log-normal shadowing where the exact interfering packet rate and successful packet transmission rate expressions are obtained and validated by simulations for different scenarios. The results show that with the proposed coexistence approach a WLAN can reliably detect the busy tone signal to change its frequency band and can reduce interference to WRAN. Even if there is no available frequency band for the WLAN the WRAN still maintains its enhanced successful packet transmission performance. The deployment of the proposed algorithm is important for successful coexistence between cognitive wireless networks where interference is not regulated such as in TVWS bands.

Source

IET Communications

Issue

13

Volume

12

Pages

1630-1637

URI

https://hdl.handle.net/20.500.12469/926
https://doi.org/10.1049/iet-com.2017.0740

Collections

  • Araştırma Çıktıları / Scopus [1482]
  • Araştırma Çıktıları / WOS [1412]
  • Elektrik-Elektronik Mühendisliği / Electrical - Electronics Engineering [319]

Keywords

access protocols
television broadcasting
radio spectrum management
cognitive radio
radiofrequency interference
frequency allocation
wireless LAN
busy tone broadcasting
coexistence method
TVWS networks
selected frequency band
busy tone based coexistence algorithm
wireless local area networks operating
IEEE 802
11af
wireless regional area network
WRAN
busy tone broadcaster
successful packet transmission rate expressions
coexistence approach
busy tone signal
available frequency band
successful coexistence
cognitive wireless regional area networks
TVWS bands
WLAN systems
TV white space
radio-frequency spectrum
licensed terrestrial TV broadcasting
unlicensed systems
capacitance 802
11 aF

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