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【名称】：The principles of ofdm
【作者】：Louis Litwin and Michael Pugel
【格式】：PDF
【页数】：9
【语言】：English(默认)
【摘要或目录】：The principles of orthogonal frequency divisionmultiplexing (OFDM) modulation have been in
existence for several decades. However, in recentyears these techniques have quickly moved out oftextbooks and research laboratories and into prac-tice in modern communications systems. The tech-
niques are employed in data delivery systems over the phone line, digital radio and television, andwireless networking systems. What is OFDM? And why has it recently become so popular? This article
will review the fundamentals behind OFDM tech-niques, and also discuss common impairments and
how, in some cases, OFDM mitigates their effectWhere applicable, the impairment effects and tech-
niques will be compared to those in a single carrier system. A brief overview of some modern applica-
tions will conclude the article.
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