@article{domizioli_hughes_2012, title={Front-End Design for Compact MIMO Receivers: A Communication Theory Perspective}, volume={60}, ISSN={["1558-0857"]}, DOI={10.1109/tcomm.2012.072612.110541}, abstractNote={The front-end is a crucial component in modern wireless communication systems. For SISO systems minimizing the front-end noise factor is optimal, and this also applies to MIMO systems with i.i.d. noise. However, for compact MIMO receivers that may exhibit spatially correlated noise, e.g., through antenna mutual coupling, the optimal design procedure is not clear. In this paper we develop MIMO low-noise design principles from a communication theory perspective by deriving generalizations of SNR and noise factor from various MIMO communication schemes. As one result, we are able to derive optimal matching networks for a bank of uncoupled amplifiers.}, number={10}, journal={IEEE TRANSACTIONS ON COMMUNICATIONS}, author={Domizioli, Carlo P. and Hughes, Brian L.}, year={2012}, month={Oct}, pages={2938–2949} }
 @article{domizioli_hughes_gard_lazzi_2010, title={Noise Correlation in Compact Diversity Receivers}, volume={58}, ISSN={["1558-0857"]}, DOI={10.1109/tcomm.2010.05.080601}, abstractNote={The impact of antenna mutual coupling on signal correlation in multi-antenna receivers has been studied in great detail. By contrast, there has been little work on how mutual coupling affects noise. In this paper we present a noise model for a diversity receiver that includes noise generated by the antennas, front-end amplifiers, and other receiver components. This model shows that noise in a compact diversity receiver may be spatially correlated. Expressions relating noise correlation to properties of the antennas and amplifiers are derived and its impact on the outage probability of an optimal diversity combiner is studied. Examples illustrating the relationship between mutual coupling and noise correlation demonstrate how different noise sources may impact performance in profoundly different ways.}, number={5}, journal={IEEE TRANSACTIONS ON COMMUNICATIONS}, author={Domizioli, Carlo P. and Hughes, Brian L. and Gard, Kevin G. and Lazzi, Gianluca}, year={2010}, month={May}, pages={1426–1436} }
 @article{dong_domizioli_hughes_2009, title={Effects of Mutual Coupling and Noise Correlation on Downlink Coordinated Beamforming with Limited Feedback}, ISSN={["1687-6180"]}, DOI={10.1155/2009/807830}, abstractNote={We consider the impact of receiver correlation, antenna coupling, matching, and noise on the performance of coordinated beamforming systems. We present a new coordinated beamforming technique for two receivers that is suitable for MIMO broadcast channels with signal and noise correlation at the receiver. We then apply this technique to the specific type of signal and noise correlation that occurs in the presence of receiver mutual coupling. Numerical results suggest that, even in the presence of strong coupling, most of the benefits of coordinated beamforming can be preserved by using appropriate matching networks and linear beamforming. Moreover, these benefits can be achieved even when feedback is limited.}, journal={EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING}, author={Dong, Yuhan and Domizioli, Carlo P. and Hughes, Brian L.}, year={2009} }
 @article{domizioli_hughes_gard_lazzi_2008, title={Optimal Front-End Design for MIMO Receivers}, ISSN={["1930-529X"]}, DOI={10.1109/glocom.2008.ecp.717}, abstractNote={The effect of antenna mutual coupling on fading correlation in compact MIMO arrays has received considerable attention. By contrast, relatively little attention has been paid to the noise. In this paper we present a circuit model for a noisy MIMO receiver front-end that includes arbitrary coupling and noise correlation. The noise figure for two-port networks is extended to multiport networks, from which theorems for optimal front-end design are derived. Numerical results are presented which provide insight into receiver noise behavior in the presence of coupled antennas.}, journal={GLOBECOM 2008 - 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE}, author={Domizioli, Carlo P. and Hughes, Brian L. and Gard, Kevin G. and Lazzi, Gianluca}, year={2008} }