Abstract
Multiplexing is a method by which multiple analog message signals or digital data streams are combined into one signal over a shared medium. In communication, different multiplexing schemes are used. To achieve higher data rates, Orthogonal Frequency Division Multiplexing (OFDM) is used due to its high spectral efficiency. OFDM became a serious alternative for modern digital signal processing methods based on the Fast Fourier Transform (FFT).The problems with Orthogonal subcarriers can be addressed with FFT in communication applications. An 8-bit processing element (PE3), used in the execution of a pipeline FFT processoris designed and presented in this paper. Simulations are carried out using Mentor Graphics tools in 130nm technology.
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