Title :
On the duality of Gaussian multiple-access and broadcast channels
Author :
Jindal, Nihar ; Vishwanath, Sriram ; Goldsmith, Andrea
Author_Institution :
Stanford Univ., CA, USA
Abstract :
We show that the Gaussian multiple-access channel (MAC) and broadcast channel (BC) are duals. The dual channels we consider have the same channel gains and the same noise power at all receivers. We find an expression for the capacity region of the BC in terms of the capacity region of the dual MAC, and vice versa. Duality applies to many different channel models and capacity definitions.
Keywords :
Gaussian channels; broadcast channels; channel capacity; multi-access systems; multiuser channels; Gaussian multiple-access channel; broadcast channel; capacity region; dual channels; duality; multiuser channels; Broadcasting; Channel capacity; Constraint theory; Decoding; Downlink; Fading; MIMO; Power system modeling; Signal analysis; Transmitters;
Conference_Titel :
Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7501-7
DOI :
10.1109/ISIT.2002.1023772
