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Mobile Wireless Communications by Mischa Schwartz

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Chapter 7Coding for error detection and correction

We have noted a number of times that the mobile radio environment is a hostile one. This was particularly spelled out in Chapter 2, in our discussion of fading phenomena in that environment. We shall see, in our discussion of voice-oriented second-generation (2G) cellular systems in the next chapter, Chapter 8, that extensive use is made of coding techniques to mitigate the effect of transmission vagaries such as fading on the information transmitted. By “coding” is meant the purposeful introduction of additional bits in a digital message stream to allow correction and/or detection of bits in the message stream that may have been received in error. In Chapter 10, describing packet-switched data ...

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