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Essential Guide to Telecommunications, The, Third Edition by Annabel Z. Dodd

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Compression and Multiplexing

Compression and multiplexing are used to improve efficiency on wireless and wireline networks. Compression shrinks the data and multiplexing combines data from multiple sources onto a single path.

Compression—Manipulating Data for More Capacity

Just as a trash compactor makes trash smaller so that more refuse can be packed into a garbage barrel, compression makes data smaller so that more information can be packed into telephone lines. It is a technique to get more capacity on telephone lines, the Internet, cellular networks and airwaves used for broadcasts. Advances in compression have enormous potential to make dialup, cable modem, DSL and cellular networks adequate for movies, games, music and downloading graphics ...

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