Multicarrier Techniques for 4G Mobile Communications P

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Multicarrier Techniques for 4G Mobile Communications P

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Examples of Multipath Fading Channels As discussed, when a signal is transmitted through a multipath fading channel, a channel model, which we assume, gives its received characteristics. For instance, the p.d.f. such as Rayleigh distribution and Ricean distribution describes the envelope fluctuation for an individual multipath component in the channel, the multipath intensity profile or spaced-frequency correlation function determines the frequency selectivity of the channel, and the Doppler power spectrum or spaced-time correlation function determines the time selectivity of the channel. Figure 2.5 shows examples of multipath delay profiles to describe frequency selectivity of a channel, which we often use in...

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