Feasibility study on cognitive radio based TV spectrum reuse using leaky coaxial cable

College

Gokongwei College of Engineering

Department/Unit

Electronics And Communications Engg

Document Type

Conference Proceeding

Source Title

Technical Report of IEICE

Volume

109

Issue

446

First Page

81

Last Page

86

Publication Date

2010

Abstract

While the transition to digital television is currently happening in most countries around the world, there has been an increasing interest recently in enhancing the spectrum use efficiency especially in TV bands via cognitive radio based access where the bandwidth is reused on a non-interfering basis. In this study, we evaluate the theoretical capacity performance of a leaky coaxial cable (LCX) for a cognitive radio based system coexisting with TV transmission in VHF and lower part of UHF channels. Based on measured data, the channel capacity was first computed by suboptimal constant power allocation. Then, water filling technique was used to compensate for the variations in the channel and interference caused by the TV signal in these bands. Finally, the capacity was evaluated within the signal-to-noise ratio (SNR) constraint of analog (50dB) and digital television (20dB) receiver threshold.

html

Disciplines

Electrical and Electronics | Systems and Communications

Keywords

Cognitive radio networks; Coaxial cables; Television—Transmitters and transmission

Upload File

wf_no

This document is currently not available here.

Share

COinS