Digitalized Cross-Polarization Interference Canceller for Multilevel Digital Radio

Author

Matsue, Hideaki ; Ohtsuka, Hiroyuki ; Murase, Takehiro

Author_Institution

NTT Radio Communication Networks Labs., Kanagawa, Japan

Volume

5

Issue

3

fYear

1987

fDate

4/1/1987 12:00:00 AM

Firstpage

493

Lastpage

501

Abstract

This paper proposes a newly developed, highly precise cross-polarization interference canceller (XPIC), utilizing digitalized transversal filters. Performance of the digitalized XPIC is solely determined by quantization and tap numbers and is not affected by any circuit imperfection. Moreover, it can be universally applied to different bit rates and various modulation schemes. Performance of the XPIC is analytically estimated for various modulation schemes and various interference conditions. Then, the digitalized XPIC is realized and applied to a 12.5 MB 256 QAM digital radio system. Experimental results have closely conformed with theoretical estimations and it is confirmed that the XPIC is a powerful countermeasure against multipath fading for a future digital radio.

Keywords

Adaptive equalizers; Inter-channel interference; Polarizations; Quadrature amplitude modulation; Transversal filters; Bit rate; Circuits; Digital communication; Estimation theory; Interference cancellation; Performance analysis; Quadrature amplitude modulation; Quantization; Radio communication countermeasures; Transversal filters;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/JSAC.1987.1146544

Filename

1146544