Title :
Power-controlled capacity for interfering MIMO links
Author :
Demirkol, M.F. ; Ingram, M.A.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
An iterative algorithm is presented to jointly optimize the capacities for a number of interfering array-to-array or MIMO flat-fading links. All signals are co-channel. At each iteration for a given link, water-filling is used to calculate the optimum transmitter signal vector correlation matrices and receiver transformations under a constraint of total transmitted power for that link. Thus, by controlling the relative transmit powers at each of the interfering links the relative capacities can be controlled. A Monte-Carlo simulation was performed for an example three-link geometry. Several statistics for the three capacities are given for various power control conditions.
Keywords :
MIMO systems; Monte Carlo methods; channel capacity; cochannel interference; fading channels; interference suppression; iterative methods; mobile radio; power control; radio links; telecommunication control; MIMO links; Monte-Carlo simulation; QoS link; additive Gaussian noise; channel capacity; co-channel interference; flat-fading links; interference suppression; interfering array-to-array links; interfering links; iterative algorithm; optimum transmitter signal vector correlation matrices; power-controlled capacity; receiver transformations; transmit power control; water-filling; Antenna arrays; Interference; Iterative algorithms; Iterative methods; MIMO; Power control; Quality of service; Receiving antennas; Statistics; Transmitters;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ, USA
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956583
