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Channel Capacity and Coding The objective of any communication system is to transmit information generated by aninformation source from one location t 阅读全文
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Peak-to-Average Power Ratio in OFDM Systems A major problem in multicarrier modulation is the high peak-to-average power ratio(PAR) that occurs in the 阅读全文
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Spectral Characteristics of OFDM Signals The signals transmitted on the subcarriers of an OFDM system are mutually orthogonal in the time domain; that 阅读全文
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Use of a Cyclic Prefix to Eliminate Channel Dispersion In this section, we consider a method to mitigate channel dispersion. Matlab Coding https://www 阅读全文
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Demodulation of OFDM Signals As we have observed above, the modulator in an OFDM system can be implemented bycomputing the IDFT. The demodulator that 阅读全文
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Generation of an OFDM signal The modulator and demodulator in an OFDM system are usually implemented by useof a parallel bank of tuned filters based o 阅读全文
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Multicarrier Modulation and OFDM In this chapter, we describe the transmission of digital information on multiplecarriers. In multicarrier modulation, 阅读全文
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Clock Synchronization In this chapter we have seen that a popular implementation of theoptimal receiver makes use of matched filters and samplers at t 阅读全文
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Carrier Synchronization Synchronization is a methods to generate sinusoids with the same frequency and phase of the carrier at the demodulator. A carr 阅读全文
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Probability of Error for QAM in an AWGN Channel Matlab Coding 1 % MATLAB script for Illustrative Problem 7.6. 2 echo on 3 SNRindB1=0:2:15; 4 SNRindB2= 阅读全文