Higher Data Transmission by Using Barcode Modulation by Dpsk-Ofdm

Abstract

The idea of 2-D standardized barcode is of extraordinary importance for use in wireless data transmission between handheld electronic devices. In a common setup, any file or document from one cell phone is transferred to another cell phone as a barcode and it is then captured and decoded through the second call phone. In this paper, a new methodology for data transmission using 2-D barcode is introduced, and its execution is assessed in contrast with other standard methods of barcode modulation. In this advanced technique, orthogonal frequency-division multiplexing (OFDM) modulation is used together with differential phase shift keying (DPSK) over adjacent frequency domain elements. A particular point of this study is to build up a framework that is demonstrated tolerant to camera movements, picture blur, and light leakage inside neighboring pixels of a LCD.

Keywords: Barcode modulation, OFDM, DPSK, LCD

1. INTRODUCTION

Exchanging of information through near field communication (NFC), say through bluetooth, is subjected to numerous assaults like man in the center