Title :
Approximate Capacity of the Dirty Multiple-Access Channel With Partial State Information at the Encoders
Author_Institution :
Wireless Foundations, Univ. of California at Berkeley, Berkeley, CA, USA
fDate :
5/1/2012 12:00:00 AM
Abstract :
In this paper, we consider the K -user Gaussian multiple-access channel with multiple independent additive white Gaussian interferences. Each interference is known to exactly one transmitter non-causally. The capacity region is characterized to within a bounded gap regardless of channel parameters. These results are based on a layered modulo-lattice scheme which realizes distributed interference cancellation.
Keywords :
channel capacity; channel coding; interference suppression; multi-access systems; radiofrequency interference; K-user Gaussian multiple-access channel; additive white Gaussian interferences; bounded gap; capacity region; dirty-multiple-access channel capacity; distributed interference cancellation; encoders; layered modulo-lattice scheme; partial state information; Additives; Encoding; Interference; Lattices; Noise; Receivers; Transmitters; Dirty multiple-access channels (MACs); dirty paper coding; distributed interference cancellation; modulo-lattice scheme;
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.2011.2179411
