Digital Subscriber Loop (DSL) technologies have enabled millions of households to have cheap broadband access by delivering megabits over simple copper wires used for voice telephony in the past. This book reviews these channels which are characteristic of many communication channels, the modulation, coding and other communication principles employed in the industry today. In particular, bit-loading algorithms, Orthogonal Frequency Division Multiplexing (OFDM), multiuser interference and usage of adaptive power, modulation and coding assignment accross subscribers as well as users is focussed upon. Further advanced alogorithms are proposed which will guide in future faster and more robust broadband access. The book also presents the first multiuser magin maximization algorithm which guarantees a the best error robustness for a group of users sharing the same channel. All the algorithms are dicussed first within a firm theoretical framework of communication theory, information theory...

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