Software-Defined Radio Equipped With Rapid Modulation Recognition

Author

Xu, Jefferson L. ; Su, Wei ; Zhou, MengChu

Author_Institution

New Jersey Inst. of Technol., Newark, NJ, USA

Volume

59

Issue

4

fYear

2010

fDate

5/1/2010 12:00:00 AM

Firstpage

1659

Lastpage

1667

Abstract

Automatic modulation recognition (AMR)-based software-defined radio (SDR) is a research challenge in developing third-generation (3G) and fourth-generation (4G) wireless communications with adaptive modulation capability. However, the existing AMR technology does not satisfy the seamless demodulation requirement of the SDR. A novel design of the AMR method with reduced computational complexity and fast processing speed is needed. This paper describes a discrete likelihood-ratio test (DLRT)-based rapid-estimation approach to identifying the modulation schemes blindly for uninterrupted data demodulation in real time. The statistical performance of the fast AMR associated with its implementation using the SDR is presented.

Keywords

3G mobile communication; 4G mobile communication; adaptive modulation; computational complexity; software radio; statistical analysis; 3G communications; 4G communications; adaptive modulation capability; automatic modulation recognition; computational complexity; discrete likelihood-ratio test; fast processing speed; fourth-generation wireless communications; rapid modulation recognition; rapid-estimation approach; software-defined radio; third-generation wireless communications; uninterrupted data demodulation; Adaptive modulation; cognitive radio (CR); maximum-likelihood ratio test; modulation classification; modulation recognition; parameter estimation; software-defined radio (SDR);

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2010.2041805

Filename

5404400