Two novel iterative algorithms for interference alignment with symbol extensions in the MIMO interference channel
نویسندگان
چکیده
منابع مشابه
Interference alignment for the MIMO interference channel
We study vector space interference alignment for the MIMO interference channel with no time or frequency diversity. We prove both necessary and sufficient conditions for alignment. In particular, we characterize the feasibility of alignment for the symmetric three-user channel where all transmitters have M antennas and all receivers have N antennas, as well as feasibility of alignment for the f...
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This paper looks into the K-user interference channel. Interference Alignment is much likely to be applied with double-layered symbol extensions, either for constant channels in the Høst-Madsen-Nosratinia conjecture or slowly changing channels. In our work, the core idea relies on double-layered symbol extensions to artificially construct equivalent time-variant channels to provide crucial chan...
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We consider the MIMO (multiple-input multiple-output) Gaussian interference channel with i.i.d. fading across antennas and channel uses and with the delayed local channel state information at the transmitters (CSIT). For the two-user case, achievability results for the degrees of freedom (DoF) region of this channel are provided. We also prove the tightness of our achievable DoF region for some...
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Determining the feasibility conditions for vector space interference alignment in the K-user MIMO interference channel with constant channel coefficients has attracted much recent attention yet remains unsolved. The main result of this paper is restricted to the symmetric square case where all transmitters and receivers have N antennas, and each user desires d transmit dimensions. We prove that...
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ژورنال
عنوان ژورنال: Science China Information Sciences
سال: 2014
ISSN: 1674-733X,1869-1919
DOI: 10.1007/s11432-013-4931-5