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Channel state information at the transmitter affects the degrees of freedom of the wireless networks. In this paper, we analyze the DoF for the K-user multiple-input single-output (MISO) broadcast channel (BC) with synergistic alternating…

信息论 · 计算机科学 2016-05-11 Mohamed Seif , Amr El-Keyi , Mohammed Nafie

We present a modified \emph{susceptible-infected-susceptible} (SIS) model on complex networks, small-world and scale-free, to study epidemic spreading with the effect of time delay which is introduced to the infected phase. Considering the…

物理与社会 · 物理学 2009-11-11 Xin-Jian Xu , Hai-Ou Peng , Xiao-Mei Wang , Ying-Hai Wang

Interference networks with no channel state information at the transmitter (CSIT) except for the knowledge of the connectivity graph have been recently studied under the topological interference management (TIM) framework. In this paper, we…

信息论 · 计算机科学 2014-12-03 Xinping Yi , David Gesbert

In this letter, we present the first characterization for the achievable Degrees-of-Freedom (DoF) by Blind Interference Alignment (BIA) using staggered antenna switching in the $K$-user Gaussian Interference Channel. In such scheme, each…

信息论 · 计算机科学 2016-05-24 Ahmed M. Alaa , Mahmoud H. Ismail

This paper investigates the degrees of freedom (DoF) of the L-cluster, K-user MIMO multi-way relay channel, where users in each cluster wish to exchange messages within the cluster, and they can only communicate through the relay. A novel…

信息论 · 计算机科学 2013-08-07 Ye Tian , Aylin Yener

Control of multihop Wireless networks in a distributed manner while providing end-to-end delay requirements for different flows, is a challenging problem. Using the notions of Draining Time and Discrete Review from the theory of fluid…

网络与互联网体系结构 · 计算机科学 2017-04-20 Ashok Krishnan K. S. , Vinod Sharma

The ability of physical layer relay caching to increase the degrees of freedom (DoF) of a single cell was recently illustrated. In this paper, we extend this result to the case of multiple cells in which a caching relay is shared among…

信息论 · 计算机科学 2017-02-21 Osama A. Hanna , Amr El-Keyi , Mohammed Nafie

This paper fully determines the degree-of-freedom (DoF) region of two-user interference channels with arbitrary number of transmit and receive antennas and isotropic fading, where the channel state information is available to the receivers…

信息论 · 计算机科学 2011-08-23 Yan Zhu , Dongning Guo

A $K_T \times K_R$ cache-aided wireless interference network, in which both the transmitters and the receivers are equipped with cache memories is studied. Each user requests one file from a library of $N$ popular files. The goal is to…

信息论 · 计算机科学 2017-03-14 Joan S. Pujol Roig , Filippo Tosato , Deniz Gündüz

In this paper, we establish the degrees of freedom (DoF) of the two-user single input single output (SISO) X-channel with alternating channel state information at the transmitters (CSIT). Three cases are considered for the availability of…

信息论 · 计算机科学 2014-08-01 Ahmed Wagdy , Amr El-Keyi , Tamer Khattab , Mohammed Nafie

This paper investigates how multiuser dimensions can effectively be exploited for target degrees of freedom (DoF) in interfering broadcast channels (IBC) consisting of K-transmitters and their user groups. First, each transmitter is assumed…

信息论 · 计算机科学 2013-10-28 Jung Hoon Lee , Wan Choi , Bhaskar D. Rao

We study the degrees of freedom (DoF) regions of the two-user multiple-input multiple-output (MIMO) broadcast channel with a general message set (BC-CM) - that includes private and common messages - under fast fading. Nine different channel…

信息论 · 计算机科学 2016-03-23 Yao Wang , Mahesh K. Varanasi

We study the degrees of freedom (DoF) of cellular networks in which a full duplex (FD) base station (BS) equipped with multiple transmit and receive antennas communicates with multiple mobile users. We consider two different scenarios. In…

信息论 · 计算机科学 2016-11-18 Sang-Woon Jeon , Sung Ho Chae , Sung Hoon Lim

A network consisting of a point-to-point (P2P) link and a multiple access channel (MAC) sharing the same medium is considered. The resulting interference network, with three transmitters and two receivers is studied from degrees of freedom…

信息论 · 计算机科学 2011-10-05 Anas Chaaban , Aydin Sezgin

The evolution of mobile networks towards user-centric cell-free distributed Massive MIMO configurations requires the development of novel signal processing techniques. More specifically, digital precoding algorithms have to be designed or…

信号处理 · 电气工程与系统科学 2025-11-10 Emiel Vanspranghels , Raquel Marina Noguera Oishi , Franco Minucci , Sofie Pollin

Channel state information (CSI) in the interference channel can be used to precode, align, and reduce the dimension of interference at the receivers, to achieve the channel's maximum multiplexing gain, through what is known as interference…

信息论 · 计算机科学 2015-06-03 Omar El Ayach , Robert W. Heath

We consider a multiple-input-single-output (MISO) broadcast channel with mixed channel state information at the transmitter (CSIT) that consists of imperfect current CSIT and perfect outdated CSIT. Recent work by Kobayashi et al. presented…

信息论 · 计算机科学 2012-03-07 Tiangao Gou , Syed A. Jafar

In this paper, the physical layer security of a dual-hop unmanned aerial vehicle-based wireless network, subject to imperfect channel state information (CSI) and mobility effects, is analyzed. Specifically, a source node $(S)$ communicates…

信息论 · 计算机科学 2022-05-17 Elmehdi Illi , Marwa K. Qaraqe , F. El Bouanani , Saif M. Al-Kuwari

We consider a single hop wireless X network with $K$ transmitters and $J$ receivers, all with single antenna. Each transmitter conveys for each receiver an independent message. The channel is assumed to have constant coefficients. We…

信息论 · 计算机科学 2011-09-15 Zhengdao Wang

Cache-aided MIMO communications aims to jointly exploit both coded caching~(CC) and spatial multiplexing gains to enhance communication efficiency. In this paper, we analyze both the achievable degrees of freedom~(DoF) under linear…

信息论 · 计算机科学 2025-11-17 Mohammad NaseriTehrani , MohammadJavad Salehi , Antti Tölli