Title :
Sum capacity optimization of the MIMO Gaussian MAC
Author :
Boche, Holger ; Jorswieck, Eduard A.
Author_Institution :
Heinrich-Hertz-Inst. fur Nachrichtentech. Berlin GmbH, Germany
Abstract :
In this work, we study the sum capacity of a Gaussian multiple-input multiple-output multiple-access channel with a sum power constraint. In order to develop an efficient algorithm for maximization of the sum capacity, we extend recent results regarding the duality between the vector multiple access channel and broadcast channel and the Sato bound. We enhance the iterative Water-filling algorithm from Wei Yu et al. (2002) to converge into the optimum power allocation.
Keywords :
Gaussian channels; MIMO systems; multi-access systems; optimisation; Gaussian multiple-input multiple-output multiple-access channel; MIMO Gaussian MAC; Sato bound; broadcast channel; iterative water-filling algorithm; maximization; optimum power allocation; sum capacity; sum capacity optimization; sum power constraint; vector multiple access channel; Base stations; Broadcasting; Covariance matrix; Downlink; Interference constraints; Iterative algorithms; MIMO; Mobile antennas; Receiving antennas; Transmitting antennas;
Conference_Titel :
Wireless Personal Multimedia Communications, 2002. The 5th International Symposium on
Print_ISBN :
0-7803-7442-8
DOI :
10.1109/WPMC.2002.1088146
