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Summary: IEEE Wireless Communications · April 2005 191536-1284/05/$20.00 © 2005 IEEE
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MODULATION, CODING AND SIGNAL PROCESSING FOR
WIRELESS COMMUNICATIONS
INTRODUCTION
The performance of today's cellular networks is
limited by interference more than by any other
single effect. Interference is distinguished from
noise in that it is caused by other human-
designed devices, often mostly from devices
designed to use the same network, which makes
it particularly interesting and aggravating.
Whereas conventional noise can be overcome by
increasing transmit power, overall interference is
increased by this simple-minded approach, since
neighboring devices now have to contend with
even more interference than before. In both cen-
tralized and ad hoc networks, overall system
capacity1 can be maximized by having each
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