Journal :   International Journal of Technology

Volume No. :   1

Issue No. :  1

Year :  2011

Pages :   05-11

ISSN Print :  2231-3907

ISSN Online :  2231-3915


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An Overview of Orthogonal Frequency Division Multiplexing



Address:   Praveen Yadav1, S.B.Burje2
1M. Tech Scholar, Rungta College of Engineering and Technology, Bhilai. CG India
2Asst. Professor, Rungta College of Engineering and Technology, Bhilai. CG India
*Corresponding Author
DOI No:

ABSTRACT:
Orthogonal frequency division multiplexing (OFDM) is a communications technique that divides a communications channel into a number of equally spaced frequency bands. A subcarrier carrying a portion of the user information is transmitted in each band. Each subcarrier is orthogonal (independent of each other) with every other subcarrier, differentiating OFDM from the commonly used frequency division multiplexing (FDM)[1]. Frequency division multiplexing (FDM) is a technology that transmits multiple signals simultaneously over a single transmission path, such as a cable or wireless system. Each signal travels within its own unique frequency range (carrier), which is modulated by the data (text, voice, video, etc.). Orthogonal FDM's (OFDM) spread spectrum technique distributes the data over a large number of carriers that are spaced apart at precise frequencies.
KEYWORDS:
An Overview of Orthogonal Frequency Division Multiplexing
Cite:
Praveen Yadav, S.B.Burje. An Overview of Orthogonal Frequency Division Multiplexing. Int. J. Tech. 1(1): Jan.-June. 2011; Page 05-11
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