Introduction to OFDM

lillian

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【简　介】:The aim of this chapter is to provide some theoretical background on the OFDM transmission technique, which is the general topic of the rest of this thesis. A brief introduction to OFDM is given in Section 4.2. We review the block diagram of a “classic”OFDM system, which employs a guard interval to mitigate the impairments of the multipath radio channel. We also discuss several design considerations related to hardware properties and derive the mathematical model for an idealized system, leading to the conclusion that data symbols can be transmitted independently of each other (i.e., without inter-symbol-interference (ISI) and inter-carrier-interference (ICI).) Moreover, the effects of synchronization imperfections are analyzed, like carrier frequency and phase offsets, and timing errors.
【目　录】:
4.1 Introduction
4.2 OFDM Introduction and System Model
4.3 Conclusions and Recommendations
4.4 References