Realization of power line modem using a direct sequence spread spectrum technique

Author

Song, Moon Kyou ; Sakong, Sug Chin ; Tchah, Kyun Hyon

Author_Institution

Dept. of Electron. Eng., Korea Univ., Seoul, South Korea

Volume

39

Issue

3

fYear

1993

Firstpage

646

Lastpage

652

Abstract

A power line modem (PLM) which transfers data safely through power lines in houses or small offices is realized in the form of a wall-socket plug. In order to cope with the noisy environment created by uncontrolled AC power lines, a direct sequence (DS) technique is employed. Most of the circuits required for the DS technique are implemented via software programmed inside the system controller, and the complicated synchronized circuit is replaced by a simple circuit using a 60 Hz power signal. The data rate is 60 bps and the PN (pseudonoise) chip rate is 2 kcps. Thus, the process gain of the PLM is about 15 dB

Keywords

carrier transmission on power lines; modems; spread spectrum communication; synchronisation; 60 Hz; direct sequence spread spectrum technique; noisy environment; power line modem; synchronized circuit; uncontrolled AC power lines; wall-socket plug; Circuits; Communication system control; Control systems; Delay; Instruments; Jitter; Modems; Plugs; Power engineering and energy; Spread spectrum communication;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.234647

Filename

234647