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2011•Unpublished venueRequires access

A low cost OFDM based modulation schemes for data communication in the passband frequency

Fabio da Costa Pinto, Fernando Sergio Oliveira Scoralick, Fabrício P. V. de Campos, Zhi Quan, Moisés V. Ribeiro

Open publisher page 8 citations

Abstract

This contribution presents low computational complexity versions of orthogonal frequency division multiplexing (OFDM) modulation scheme for the implementation of clustered-OFDM systems for data transmission in the passband frequency. Among the proposed schemes, which are named Hermitian symmetric OFDM (HS-OFDM) I and HS-OFDM II, the HS-OFDM II can offer computational complexity reduction in comparison with the single side-band OFDM (SSB-OFDM), OFDM, and HS-OFDM systems when the length of the OFDM symbol increases. Results show that all simulated schemes can provide the same BER performance in PLC channel. Additionally, HS-OFDM I has a lower complexity than traditional HS-OFDM, and HS-OFDM II further reduces the complexity and achieves the lowest complexity implementation among the five schemes.

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What this paper is about

This contribution presents low computational complexity versions of orthogonal frequency division multiplexing (OFDM) modulation scheme for the implementation of clustered-OFDM systems for data transmission in the passband frequency. Among the proposed schemes, which are named Hermitian symmetric OFDM (HS-OFDM) I and HS-OFDM II, the HS-OFDM II can offer computational complexity reduction in comparison with the single side-band OFDM (SSB-OFDM), OFDM, and HS-OFDM systems when the length of the OFDM symbol increases. Results show that all simulated schemes can provide the same BER performance in PLC channel. Additionally, HS-OFDM I has a lower complexity than traditional HS-OFDM, and HS-OFDM II further reduces the complexity and achieves the lowest complexity implementation among the five schemes.

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Available abstract

This contribution presents low computational complexity versions of orthogonal frequency division multiplexing (OFDM) modulation scheme for the implementation of clustered-OFDM systems for data transmission in the passband frequency. Among the proposed schemes, which are named Hermitian symmetric OFDM (HS-OFDM) I and HS-OFDM II, the HS-OFDM II can offer computational complexity reduction in comparison with the single side-band OFDM (SSB-OFDM), OFDM, and HS-OFDM systems when the length of the OFDM symbol increases. Results show that all simulated schemes can provide the same BER performance in PLC channel. Additionally, HS-OFDM I has a lower complexity than traditional HS-OFDM, and HS-OFDM II further reduces the complexity and achieves the lowest complexity implementation among the five schemes.

Key concepts: Orthogonal frequency-division multiplexing, Modulation (music), Passband, Computer science, Hermitian function, Computational complexity theory, Reduction (mathematics), Frequency-division multiplexing

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