A new modem structure for data transmission

Author

Mattis, W.E.

Author_Institution

Dept. of Electr. & Comput. Eng., Villanova Univ., PA, USA

Volume

39

Issue

4

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

878

Lastpage

886

Abstract

A modem structure for high speed data communications is presented. This modem is designed to operate in the time division multiple access (TDMA) mode using quadriphase shift keying (QPSK). This new structure permits the transmission of higher data rates, thus allowing commercial businesses, such as retailers, farmers, etc., to send and receive sales and inventory figures, commodity prices, etc. without delay and with minimal error. This result is achievable because this structure overcomes the problem of intersymbol interference by incorporating first, a unique adaptive equalizer, and second, new carrier and clock recovery networks. Simulations are shown, as well as the actual circuits for implementation

Keywords

equalisers; modems; phase shift keying; time division multiple access; QPSK; TDMA; adaptive equalizer; carrier recovery network; clock recovery network; commercial businesses; commodity prices; data rates; data transmission; farmers; high speed data communications; inventory; modem structure; quadriphase shift keying; retailers; sales; time division multiple access; Adaptive equalizers; Business; Clocks; Data communication; Delay; Intersymbol interference; Marketing and sales; Modems; Quadrature phase shift keying; Time division multiple access;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.267412

Filename

267412