Fundamental capacity limits on compact MIMO-OFDM systems

We undertake an information-theoretic approach to characterize the optimal design of a broadband multi-antenna system in the presence of mutual coupling. It was shown recently that mutual coupling effectively decomposes otherwise spectrally-identical spatial modes of an antenna array into spectrally non-identical eigen-modes. We shall use Shannon's information theory and Fano's broadband matching theory to develop optimal transceiver designs for a compact broadband MIMO system. It will be shown that in the presence of channel state information, optimal transmit power allocation and matching characteristic follow a mutual space-frequency water-pouring solution.

[1]  Michael A. Jensen,et al.  Mutual coupling in MIMO wireless systems: a rigorous network theory analysis , 2004, IEEE Transactions on Wireless Communications.

[2]  Mats Gustafsson,et al.  On the spectral efficiency of a sphere , 2004 .

[3]  R. Fano.  Theoretical limitations on the broadband matching of arbitrary impedances , 1950 .

[4]  Buon Kiong Lau,et al.  Impact of Matching Network on Bandwidth of Compact Antenna Arrays , 2006, IEEE Transactions on Antennas and Propagation.

[5]  Brian L. Hughes,et al.  Information Theoretic Optimal Broadband Matching for Communication Systems , 2010, 2010 IEEE Global Telecommunications Conference GLOBECOM 2010.

[6]  M. J. Gans,et al.  On Limits of Wireless Communications in a Fading Environment when Using Multiple Antennas , 1998, Wirel. Pers. Commun..

[7]  Brian L. Hughes,et al.  Receive Diversity Revisited: Correlation, Coupling and Noise , 2007, IEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference.

[8]  Brian L. Hughes,et al.  Optimal Front-End Design for MIMO Receivers , 2008, IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference.

[9]  Siavash M. Alamouti,et al.  A simple transmit diversity technique for wireless communications , 1998, IEEE J. Sel. Areas Commun..

[10]  M.A. Jensen,et al.  Termination-dependent diversity performance of coupled antennas: network theory analysis , 2004, IEEE Transactions on Antennas and Propagation.

[11]  Helmut Bölcskei,et al.  On the capacity of OFDM-based spatial multiplexing systems , 2002, IEEE Trans. Commun..

[12]  Pawandeep Singh Taluja,et al.  Information-Theoretic Limits on Broadband Multi-Antenna Systems in the Presence of Mutual Coupling. , 2011 .

[13]  Emre Telatar,et al.  Capacity of Multi-antenna Gaussian Channels , 1999, Eur. Trans. Telecommun..

[14]  J. Wallace,et al.  1 MIMO Wireless Channel Modeling and Experimental Characterization , 2005 .

[15]  Brian L. Hughes,et al.  Bandwidth Limitations and Broadband Matching for Coupled Multi-Antenna Systems , 2011, 2011 IEEE Global Telecommunications Conference - GLOBECOM 2011.

[16]  Preben E. Mogensen,et al.  A stochastic MIMO radio channel model with experimental validation , 2002, IEEE J. Sel. Areas Commun..

[17]  G. Burke,et al.  Numerical Electromagnetics Code (NEC)-Method of Moments. A User-Oriented Computer Code for Analysis of the Electromagnetic Response of Antennas and Other Metal Structures. Part 1: Program Description-Theory. Part 2: Program Description-Code. Volume 1. Revised , 1981 .