Wideband-Orthogonal Frequency Division Multiplexing

Orthogonal Frequency Division Multiplexing (W-OFDM) has been successfully applied to a wide variety of digital communications applications over the past several years and has been adopted as the wireless LAN standard. This paper presents the challenges associated with implementing OFDM for high speed wireless data communication and how Wideband-OFDM (W-OFDM), a variation of OFDM improves bandwidth and noise tolerance.

Introduction

Just what is OFDM, and what makes it better? To answer this question, we need to review some basic ideas about wireless telecommunications systems, and how OFDM fits into the overall picture. In what follows, we will review the following concepts needed to understand OFDM; digital messages, carrier waves, modulation and multiplexing. Then we will explain OFDM and why it is used.

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