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Secure Retrospective Interference Alignment [PDF]
Entropy, 2019 In this paper, the K-user interference channel with secrecy constraints is considered with delayed channel state information at transmitters (CSIT). We propose a novel secure retrospective interference alignment scheme in which the transmitters carefully
Mohamed Seif, Ravi Tandon, Ming Li
doaj +5 more sources
Cellular Interference Alignment [PDF]
IEEE Transactions on Information Theory, 2014 Interference alignment promises that, in Gaussian interference channels, each link can support half of a degree of freedom (DoF) per pair of transmit-receive antennas.
Caire, Giuseppe +2 more
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Retrospective Interference Alignment [PDF]
2011 IEEE International Symposium on Information Theory Proceedings, 2010 We explore similarities and differences in recent works on blind interference alignment under different models such as staggered block fading model and the delayed CSIT model.
Jafar, Syed A. +2 more
core +3 more sources
Opportunistic Interference Alignment in MIMO Interference Channels [PDF]
2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008 We present two interference alignment techniques such that an opportunistic point-to-point multiple input multiple output (MIMO) link can reuse, without generating any additional interference, the same frequency band of a similar pre-existing primary ...
Chaufray, Jean-Marie +3 more
core +9 more sources
Ergodic Interference Alignment [PDF]
IEEE Transactions on Information Theory, 2011 This paper develops a new communication strategy, ergodic interference alignment, for the K-user interference channel with time-varying fading. At any particular time, each receiver will see a superposition of the transmitted signals plus noise.
Gastpar, Michael +3 more
core +2 more sources
Channel Aided Interference Alignment [PDF]
IET Signal Processing, 2016 Interference alignment (IA) techniques mostly attain their degrees of freedom (DoF) benefits as the number of channel extensions tends to infinity. Intuitively, the more interfering signals that need to be aligned, the larger the number of dimensions ...
Haddadi, Farzan +2 more
core +3 more sources
Interference Alignment via Message-Passing [PDF]
2014 IEEE International Conference on Communications (ICC), 2013 We introduce an iterative solution to the problem of interference alignment (IA) over MIMO channels based on a message-passing formulation. We propose a parameterization of the messages that enables the computation of IA precoders by a min-sum algorithm ...
Guillaud, Maxime +2 more
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Retrospective Interference Alignment for the MIMO Interference Broadcast Channel [PDF]
2015 IEEE International Symposium on Information Theory (ISIT), 2015 The degrees of freedom (DoF) of the multiple-input multiple-output (MIMO) Interference Broadcast Channel (IBC) with 2 cells and 2 users per cell are investigated when only delayed channel state information is available at the transmitter side (delayed ...
Agustin, Adrian +2 more
core +4 more sources
Enhancing Time-Domain Interference Alignment for Underwater Acoustic Networks with Cross-Layer Design [PDF]
SensorsIn exploiting large propagation delays in underwater acoustic (UWA) networks, the time-domain interference alignment (TDIA) mechanism aligns interference signals through delay-aware slot scheduling, creating additional idle time for improved transmission
Qiao Xiao, Zhicheng Bi, Chaofeng Wang
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Group Based Interference Alignment [PDF]
IEEE Communications Letters, 2010 In the $K$-user single-input single-output (SISO) frequency-selective fading interference channel, it is shown that the maximal achievable multiplexing gain is almost surely $K/2$ by using interference alignment (IA).
Jian-dong Li +6 more
core +3 more sources