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相关论文: On the Optimality of Treating Interference as Nois…

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It has been conjectured by Host-Madsen and Nosratinia that complex Gaussian interference channels with constant channel coefficients have only one degree-of-freedom regardless of the number of users. While several examples are known of…

信息论 · 计算机科学 2012-04-03 Viveck R. Cadambe , Syed A. Jafar , Chenwei Wang

We study the Degrees-of-Freedom (DoF) in a wireless setting in which K Transmitters (TXs) aim at jointly serving K users. The performance is studied when the TXs are faced with a distributed Channel State Information (CSI) configuration in…

信息论 · 计算机科学 2020-05-14 Antonio Bazco-Nogueras , Paul de Kerret , David Gesbert , Nicolas Gresset

We consider the information-theoretic optimality of treating inter-cell interference as noise (multi-cell TIN) in downlink cellular networks. We focus on scenarios modeled by the Gaussian interfering broadcast channel (IBC), comprising $K$…

信息论 · 计算机科学 2019-09-27 Hamdi Joudeh , Xinping Yi , Bruno Clerckx , Giuseppe Caire

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…

信息论 · 计算机科学 2019-08-05 Junge Wang , Bofeng Yuan , Lexiang Huang , Syed A. Jafar

In this paper, we present a general formula for the capacity region of a general interference channel with two pairs of users. The formula shows that the capacity region is the union of a family of rectangles, where each rectangle is…

信息论 · 计算机科学 2013-10-08 Xiao Ma , Lei Lin , Chulong Liang , Xiujie Huang , Baoming Bai

In this paper, we characterize the degrees of freedom (DoF) for $K $-user $M \times 1 $ multiple-input single-output interference channels with reconfigurable antennas which have multiple preset modes at the receivers, assuming linear…

信息论 · 计算机科学 2016-02-15 Heecheol Yang , Wonjae Shin , Jungwoo Lee

Characterizing the global maximum of weighted sum-rate (WSR) for the K-user Gaussian interference channel (GIC), with the interference treated as Gaussian noise, is a key problem in wireless communication. However, due to the users' mutual…

信息论 · 计算机科学 2016-11-17 Liang Liu , Rui Zhang , Kee-Chaing Chua

The Gaussian $K$-user interference and $M\times K$ X channels are investigated with no instantaneous channel state information (CSI) at transmitters. First, it is assumed that the CSI is fed back to all nodes after a finite delay (delayed…

信息论 · 计算机科学 2016-11-17 Mohammad Javad Abdoli , Akbar Ghasemi , Amir Keyvan Khandani

In this paper, we study the achievable degrees-of-freedom (DoF) regions of the $K$-user multiple-input-single-output (MISO) time correlated broadcast channel (BC). The time correlation induces knowledge of the current channel state…

信息论 · 计算机科学 2014-12-03 Yi Luo , Tharmalingam Ratnarajah , Anastasios K. Papazafeiropoulos

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. However, in general, this result requires to precode the data bearing…

信息论 · 计算机科学 2014-02-14 Vasilis Ntranos , Mohammad Ali Maddah-Ali , Giuseppe Caire

We consider a secure communication scenario through the two-user Gaussian interference channel: each transmitter (user) has a confidential message to send reliably to its intended receiver while keeping it secret from the other receiver.…

信息论 · 计算机科学 2016-04-26 Parisa Babaheidarian , Somayeh Salimi , Panos Papadimitratos

This work considers the corner points of the capacity region of a two-user Gaussian interference channel (GIC). In a two-user GIC, the rate pairs where one user transmits its data at the single-user capacity (without interference), and the…

信息论 · 计算机科学 2015-04-09 Igal Sason

We consider the $K$-User Multiple-Input-Single-Output (MISO) Broadcast Channel (BC) where the transmitter, equipped with $M$ antennas, serves $K$ users, with $K \leq M$. The transmitter has access to a partial channel state information of…

信息论 · 计算机科学 2017-07-05 Enrico Piovano , Bruno Clerckx

We investigate the capacity region of multi-user interference channels (IC), where each user encodes multiple sub-user components. By unifying chain-rule decomposition with the Entropy Power Inequality (EPI), we reason that single-user…

信息论 · 计算机科学 2025-01-28 Sagnik Bhattacharya , Abhiram Rao Gorle , Muhammad Ali Mohsin , John M. Cioffi

This paper considers a $K$-cell multiple access channel with inter-symbol interference. The primary finding of this paper is that, without instantaneous channel state information at the transmitters (CSIT), the sum degrees-of-freedom (DoF)…

信息论 · 计算机科学 2017-04-11 Yo-Seb Jeon , Namyoon Lee , Ravi Tandon

This paper considers the two-user Gaussian interference channel in the presence of adversarial jammers. We first provide a general model including an arbitrary number of jammers, and show that its capacity region is equivalent to that of a…

信息论 · 计算机科学 2017-12-13 Fatemeh Hosseinigoki , Oliver Kosut

We study the Degrees of Freedom (DoF) of the K-user interference channel with coordinated multi-point (CoMP) transmission and reception. Each message is jointly transmitted by M_t successive transmitters, and is jointly received by M_r…

信息论 · 计算机科学 2016-11-18 V. Sreekanth Annapureddy , Aly El Gamal , Venugopal V. Veeravalli

In this paper we consider strategies for MIMO interference channels which combine the notions of interference alignment and channel pre-inversion. Users collaborate to form data-sharing groups, enabling them to clear interference within a…

信息论 · 计算机科学 2015-02-03 David Karpuk , Peter Moss

We study the $K=3$ user multiple input single output (MISO) broadcast channel (BC) with $M=3$ antennas at the transmitter and $1$ antenna at each receiver, from the generalized degrees of freedom (GDoF) perspective, under the assumption…

信息论 · 计算机科学 2018-05-16 Arash Gholami Davoodi , Syed Ali Jafar

For a multi-user interference channel with multi-antenna transmitters and single-antenna receivers, by restricting each transmitter to Gaussian input and each receiver to a single-user detector, computing the largest achievable rate region…

信息论 · 计算机科学 2009-07-06 Xiaohu Shang , Biao Chen , H. Vincent Poor