Journal ArticleDOI
Interference Alignment in Two-Cell LTE-Advanced Heterogeneous Networks
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This article is published in IEICE Transactions on Communications.The article was published on 2015-01-01. It has received 0 citations till now. The article focuses on the topics: LTE Advanced & Heterogeneous network.read more
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Journal ArticleDOI
Interference Alignment and Degrees of Freedom of the $K$ -User Interference Channel
Viveck R. Cadambe,Syed A. Jafar +1 more
TL;DR: For the fully connected K user wireless interference channel where the channel coefficients are time-varying and are drawn from a continuous distribution, the sum capacity is characterized as C(SNR)=K/2log (SNR)+o(log( SNR), which almost surely has K/2 degrees of freedom.
Journal ArticleDOI
A survey on 3GPP heterogeneous networks
Aleksander Damnjanovic,J. Montojo,Yongbin Wei,Ji Tingfang,Tao Luo,Madhavan Srinivasan Vajapeyam,Taesang Yoo,Osok Song,Durga Prasad Malladi +8 more
TL;DR: The need for an alternative strategy, where low power nodes are overlaid within a macro network, creating what is referred to as a heterogeneous network is discussed, and a high-level overview of the 3GPP LTE air interface, network nodes, and spectrum allocation options is provided, along with the enabling mechanisms.
Journal ArticleDOI
Three-terminal communication channels
TL;DR: A coding theorem and weak converse are proved and a necessary and sufficient condition for a positive capacity is derived and upper and lower bounds on the capacity are obtained, which coincide for channels with symmetric structure.
Journal ArticleDOI
Communication Over MIMO X Channels: Interference Alignment, Decomposition, and Performance Analysis
TL;DR: It is shown that by using mixed design schemes, rather than decomposition schemes, and taking the statistical properties of the interference terms into account, the power offset of the system can be improved.
Journal ArticleDOI
Degrees of Freedom Region of the MIMO $X$ Channel
Syed A. Jafar,Shlomo Shamai +1 more
TL;DR: In this paper, the degrees of freedom region of a MIMO X channel with two transmitters, two receivers, each equipped with multiple antennas, where independent messages need to be conveyed over fixed channels from each transmitter to each receiver is analyzed.