Title :
Impact of the power of the steering directions on the asymptotic capacity of MIMO channels
Author :
Debbah, Mérouane ; Müller, Ralf
Author_Institution :
Forschungszentrum Telekommunikation Wien, Vienna, Austria
Abstract :
In this contribution, the double directional model derived within the maximum entropy framework in M. Debbah and R. Muller (2003) is studied. For a given power profile, an asymptotic analysis (in the number of antennas) is conducted on the achievable transmission limit using tools of random matrix theory. It is shown in particular that the optimal throughput is achieved when the scatterers have equally distributed powers. For special cases, the mutual information is proven to be asymptotically Gaussian.
Keywords :
Gaussian processes; MIMO systems; antenna arrays; channel capacity; matrix algebra; maximum entropy methods; receiving antennas; scattering; transmitting antennas; MIMO channels; asymptotic capacity; double directional model; maximum entropy framework; multiple-input multiple-output system; random matrix theory; steering directions; Channel capacity; Eigenvalues and eigenfunctions; Entropy; Fourier transforms; Gaussian noise; MIMO; Mutual information; Receiving antennas; Scattering; Transmitting antennas;
Conference_Titel :
Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on
Print_ISBN :
0-7803-8292-7
DOI :
10.1109/ISSPIT.2003.1341116
