Multi-user MIMO and Carrier Aggregation in 4G systems: The SAMURAI approach

The market success of broadband multimedia-enabled devices such as smart phones, tablets, and laptops is increasing the demand for wireless data capacity in mobile cellular systems. In order to meet such requirements, the introduction of advanced techniques for increasing the efficiency in spectrum usage was required. Multi User -Multiple Input Multiple Output (MU-MIMO) and Carrier Aggregation (CA) are two important techniques addressed by 3GPP for LTE and LTE-Advanced. The aim of the EU FP7 project on “Spectrum Aggregation and Multi-user-MIMO: real-World Impact” (SAMURAI) is to investigate innovative techniques in the area of MU-MIMO and CA with particular focus on the practical, real-life, implementation and system deployment aspects. In the present paper, we provided an overview of the up-to-date SAMURAI contributions together with a description of the SAMURAI demonstrators developed as core part of the project.

[1]  Klaus I. Pedersen,et al.  Carrier aggregation for LTE-advanced: functionality and performance aspects , 2011, IEEE Communications Magazine.

[2]  Preben E. Mogensen,et al.  Autonomous component carrier selection: interference management in local area environments for LTE-advanced , 2009, IEEE Communications Magazine.

[3]  Klaus I. Pedersen,et al.  Feedback Compression Schemes for Downlink Carrier Aggregation in LTE-Advanced , 2011, 2011 IEEE Vehicular Technology Conference (VTC Fall).

[4]  Raymond Knopp,et al.  Interference-aware receiver structure for multi-user MIMO and LTE , 2011, EURASIP J. Wirel. Commun. Netw..

[5]  Klaus I. Pedersen,et al.  Downlink Performance of a Multi-Carrier MIMO System in a Bursty Traffic Cellular Network , 2011, 2011 IEEE International Conference on Communications (ICC).

[6]  Raymond Knopp,et al.  MU-MIMO in LTE Systems , 2011, EURASIP J. Wirel. Commun. Netw..

[7]  Raymond Knopp,et al.  Performance of LTE in rural areas - Benefits of opportunistic multi-user MIMO , 2011, 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications.

[8]  Gilberto Berardinelli,et al.  Software architecture design for a Dynamic Spectrum Allocation-enabled Cognitive Radio testbed , 2011, 2011 19th European Signal Processing Conference.