Design and Implementation of an Underlay Control Channel for Cognitive Radios

Author

Wasden, Daryl Leon ; Moradi, Hussein ; Farhang-Boroujeny, Behrouz

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of Utah in Salt Lake City, Salt Lake City, UT, USA

Volume

30

Issue

10

fYear

2012

fDate

11/1/2012 12:00:00 AM

Firstpage

1875

Lastpage

1889

Abstract

Implementation of any cognitive radio network requires an effective control channel that can operate under various modes of activity from the primary users. This paper reports the design and implementation of a filter bank multicarrier spread spectrum (FBMC-SS) system for use as the control channel in cognitive radio networks. The proposed design is based on a filtered multitone (FMT) implementation. Carrier and timing acquisition and tracking methods as well as a blind channel estimation method are developed for the proposed control channel. We also report an implementation of the proposed FBMC-SS system on a hardware platform; a FlexRIO FPGA module from National Instruments.

Keywords

channel bank filters; channel estimation; cognitive radio; radio networks; spread spectrum communication; wireless channels; FBMC-SS system; FMT; FlexRIO FPGA module; blind channel estimation method; carrier-timing acquisition method; carrier-timing tracking methods; cognitive radio network; filter bank multicarrier spread spectrum system; filtered multitone; underlay control channel; Cognitive radio; Interference; Modulation; OFDM; Radio transmitters; Receivers; Timing; Cognitive Radio; Control Channel; Filter Banks; Spread Spectrum Communication;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/JSAC.2012.121104

Filename

6331679