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Generalized Degrees of Freedom (GDoF) are characterized for the symmetric $K$-user Multiple Input Multiple Output (MIMO) Interference Channel (IC) under the assumption that the channel state information at the transmitters (CSIT) is limited…

Information Theory · Computer Science 2017-11-02 Arash Gholami Davoodi , Syed Ali Jafar

In this paper, we investigate the generalized degrees-of-freedom (GDoF) of the asymmetric interference channel with delayed channel state information at the transmitter (CSIT), where each transmitter has two antennas, each receiver has one…

Information Theory · Computer Science 2022-05-04 Tong Zhang , Yufan Zhuang , Yinfei Xu

We consider the cache-aided MISO broadcast channel (BC) in which a multi-antenna transmitter serves $K$ single-antenna receivers, each equipped with a cache memory. The transmitter has access to partial knowledge of the channel state…

Information Theory · Computer Science 2018-12-05 Enrico Piovano , Hamdi Joudeh , Bruno Clerckx

The generalized degrees of freedom (GDoF) characterization of the symmetric K-user interference channel is obtained under finite precision channel state information at the transmitters (CSIT). The symmetric setting is where each cross…

Information Theory · Computer Science 2016-01-26 Arash Gholami Davoodi , Syed A. Jafar

The generalized degrees of freedom (GDoF) region of the MIMO Gaussian interference channel (IC) is obtained for the general case of an arbitrary number of antennas at each node and where the signal-to-noise ratios (SNR) and…

Information Theory · Computer Science 2011-03-15 Sanjay Karmakar , Mahesh K. Varanasi

The generalized degrees of freedom (GDoF) region of the multiple-input multiple-output (MIMO) Gaussian Z-interference channel with an arbitrary number of antennas at each node is established under the assumption of delayed channel state…

Information Theory · Computer Science 2016-05-04 Kaniska Mohanty , Mahesh K. Varanasi

The generalized degrees of freedom (GDoF) region of the MIMO Gaussian interference channel is obtained for the general case with an arbitrary number of antennas at each node and where the SNR and interference-to-noise ratios (INRs) vary…

Information Theory · Computer Science 2011-03-10 Sanjay Karmakar , Mahesh K. Varanasi

The Generalized Degrees of Freedom (GDoF) of the two user interference channel are characterized for all parameter regimes under the assumption of finite precision channel state information at the transmitters (CSIT), when a limited amount…

Information Theory · Computer Science 2019-08-05 Junge Wang , Bofeng Yuan , Lexiang Huang , Syed A. Jafar

The degrees of freedom (DoF) region is characterized for the $2$-user multiple input multiple output (MIMO) broadcast channel (BC), where the transmitter is equipped with $M$ antennas, the two receivers are equipped with $N_1$ and $N_2$…

Information Theory · Computer Science 2019-01-21 Arash Gholami Davoodi , Syed A. Jafar

The K-user symmetric multiple input multiple output (MIMO) Gaussian interference channel (IC) where each transmitter has M antennas and each receiver has N antennas is studied from a generalized degrees of freedom (GDOF) perspective. An…

Information Theory · Computer Science 2012-08-10 Parthajit Mohapatra , Chandra R. Murthy

We study the generalized degrees of freedom (gDoF) of block-fading noncoherent multiple input multiple output (MIMO) channels with asymmetric distributions of link strengths and a coherence time of T symbol durations. We derive the optimal…

Information Theory · Computer Science 2019-11-19 Joyson Sebastian , Suhas. N. Diggavi

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,…

Information Theory · Computer Science 2015-03-19 Akbar Ghasemi , Abolfazl Seyed Motahari , Amir Keyvan Khandani

The degrees of freedom (DoF) region of the 2-user multiple-antenna or MIMO (multiple-input, multiple-output) interference channel (IC) is studied under fast fading and the assumption of {\em delayed} channel state information (CSI) wherein…

Information Theory · Computer Science 2015-03-18 Chinmay S. Vaze , Mahesh K. Varanasi

We consider the temporally-correlated Multiple-Input Multiple-Output (MIMO) broadcast channels (BC) and interference channels (IC) where the transmitter(s) has/have (i) delayed channel state information (CSI) obtained from a latency-prone…

Information Theory · Computer Science 2016-11-17 Xinping Yi , Sheng Yang , David Gesbert , Mari Kobayashi

The degrees of freedom (DoF) region of the fast-fading MIMO (multiple-input multiple-output) Gaussian broadcast channel (BC) is studied when there is delayed channel state information at the transmitter (CSIT). In this setting, the channel…

Information Theory · Computer Science 2011-12-26 Chinmay S. Vaze , Mahesh K. Varanasi

The two-user multiple-input multiple-output (MIMO) interference channel (IC) with arbitrary number of antennas at each terminal is considered and the degrees of freedom (DoF) region is characterized in the presence of noiseless channel…

Information Theory · Computer Science 2016-11-17 Ravi Tandon , Soheil Mohajer , H. Vincent Poor , Shlomo Shamai

We present sum-set inequalities specialized to the generalized degrees of freedom (GDoF) framework. These are information theoretic lower bounds on the entropy of bounded density linear combinations of discrete, power-limited dependent…

Information Theory · Computer Science 2017-08-25 Arash Gholami Davoodi , Syed A. Jafar

The K-user multiple-input and multiple-output (MIMO) broadcast channel (BC) with no channel state information at the transmitter (CSIT) is considered, where each receiver is assumed to be equipped with reconfigurable antennas capable of…

Information Theory · Computer Science 2016-11-18 Minho Yang , Sang-Woon Jeon , Dong Ku Kim

The generalized degrees of freedom (GDoF) of the symmetric two-user Gaussian interference relay channel (IRC) is studied. While it is known that the relay does not increase the DoF of the IC, this is not known for the more general GDoF. For…

Information Theory · Computer Science 2012-07-03 Anas Chaaban , Aydin Sezgin

In this work, we consider the use of interference alignment (IA) in a MIMO interference channel (IC) under the assumption that each transmitter (TX) has access to channel state information (CSI) that generally differs from that available to…

Information Theory · Computer Science 2013-05-08 Paul de Kerret , Maxime Guillaud , David Gesbert
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