On the Overhead of Interference Alignment: Training, Feedback, and Cooperation

Interference alignment (IA) is a cooperative transmission strategy that, under some conditions, achieves the interference channel's maximum number of degrees of freedom. Realizing IA gains, however, is contingent upon providing transmitters with sufficiently accurate channel knowledge. In this...

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Veröffentlicht in:	IEEE transactions on wireless communications 2012-11, Vol.11 (11), p.4192-4203
Hauptverfasser:	El Ayach, Omar, Lozano, Angel, Heath, Robert W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Analog feedback Applied sciences Channel estimation channel state information (CSI) Detection, estimation, filtering, equalization, prediction Exact sciences and technology Fading channels Information, signal and communications theory Interference Interference alignment Interference cancellation Interference channels MIMO Multiple access interference Radiocommunications Receivers Signal and communications theory Signal to noise ratio Signal, noise Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Training Transmission and modulation (techniques and equipments) Transmitters Transmitters. Receivers
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