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We study the problems of estimating the past and future evolutions of two diffusion processes that spread concurrently on a network. Specifically, given a known network $G=(V, \overrightarrow{E})$ and a (possibly noisy) snapshot…

社会与信息网络 · 计算机科学 2023-10-31 Nouman Khan , Kangle Mu , Mehrdad Moharrami , Vijay Subramanian

We study the capacity of a quantum channel for retrocausal communication, where messages are transmitted backward in time, from a sender in the future to a receiver in the past, through a noisy postselected closed timelike curve (P-CTC)…

量子物理 · 物理学 2026-04-17 Kaiyuan Ji , Seth Lloyd , Mark M. Wilde

A frequent task in exploratory data analysis consists in examining pairwise dependencies between data variables. Popular approaches include visualizing correlation or scatter plot matrices. However, both methods can be misleading. The…

应用统计 · 统计学 2022-04-04 Arturo Erdely , Manuel Rubio-Sanchez

Handling interference is one of the main challenges in the design of wireless networks. One of the key approaches to interference management is node cooperation, which can be classified into two main types: relaying and feedback. In this…

信息论 · 计算机科学 2015-03-19 Daniel Zahavi , Ron Dabora

Spectrum sharing backscatter communication systems are among the most prominent technologies for ultralow power and spectrum efficient communications. In this paper, we propose an underlay spectrum sharing backscatter communication system,…

信息论 · 计算机科学 2021-01-27 Yazan H. Al-Badarneh , Ahmed Elzanaty , Mohamed-Slim Alouini

This paper investigates the probabilistic properties that determine the existence of space-time transformations between diffusion processes. We prove that two diffusions are related by a monotone space-time transformation if and only if…

概率论 · 数学 2015-09-16 Enrico Bibbona , Laura Sacerdote , Emiliano Torre

This paper introduces an innovative method for constructing copula models capable of describing arbitrary non-monotone dependence structures. The proposed method enables the creation of such copulas in parametric form, thus allowing the…

统计方法学 · 统计学 2024-03-26 Manfred Marvin Marchione , Fabio Baione

We consider a spectrum sharing communication scenario in which a primary and a secondary users are communicating, simultaneously, with their respective destinations using the same frequency carrier. Both optimal power profile and ergodic…

信息论 · 计算机科学 2016-11-15 Lokman Sboui , Zouheir Rezki , Mohamed-Slim Alouini

In this paper, we study the interdependency between the power grid and the communication network used to control the grid. A communication node depends on the power grid in order to receive power for operation, and a power node depends on…

最优化与控制 · 数学 2014-05-13 Marzieh Parandehgheibi , Eytan Modiano , David Hay

The capacity of the channel defined by the stochastic nonlinear Schr\"odinger equation, which includes the effects of the Kerr nonlinearity and amplified spontaneous emission noise, is considered in the case of zero dispersion. In the…

信息论 · 计算机科学 2014-10-09 Mansoor I. Yousefi , Frank R. Kschischang

The increased complexity of infrastructure systems has resulted in critical interdependencies between multiple networks---communication systems require electricity, while the normal functioning of the power grid relies on communication…

物理与社会 · 物理学 2020-11-10 Michael M. Danziger , Albert-László Barabási

Cell biasing and downlink transmit power are two controls that may be used to improve the spectral efficiency of cellular networks. With cell biasing, each mobile user associates with the base station offering, say, the highest biased…

信息论 · 计算机科学 2015-12-09 Lex Fridman , Jeffrey Wildman , Steven Weber

This paper focuses on the capacity of point-to-point relay communications wherein the transmitter is assisted by an intermediate relay. We detail the mathematical model of cutset and amplify and forward (AF) relaying strategy. We present…

信息论 · 计算机科学 2013-01-15 Farshad Shams , Marco Luise

Spectrum sharing between wireless networks improves the efficiency of spectrum usage, and thereby alleviates spectrum scarcity due to growing demands for wireless broadband access. To improve the usual underutilization of the cellular…

信息论 · 计算机科学 2008-08-18 Kaibin Huang , Vincent K. N. Lau , Yan Chen

In this correspondence the cumulants of the mutual information of the flat Rayleigh fading amplify-and-forward MIMO relay channel without direct link between source and destination are derived in the large array limit. The analysis is based…

信息论 · 计算机科学 2007-07-13 Joerg Wagner , Boris Rankov , Armin Wittneben

The dependent scattering mechanism is known to have a significant impact on the radiative properties of random media containing discrete scatterers. Here we theoretically demonstrate the role of dependent scattering on the radiative…

介观与纳米尺度物理 · 物理学 2018-07-26 B. X. Wang , C. Y. Zhao

In this paper we examine the value of feedback that comes from overhearing, without dedicated feedback resources. We focus on a simple model for this purpose: a deterministic two-hop interference channel, where feedback comes from…

信息论 · 计算机科学 2014-07-30 Jinyuan Chen , Ayfer Ozgur , Suhas Diggavi

A generic communication model of a boolean network with transmission errors is proposed to explore the power-law scaling of states' evolution in small-world networks. In the model, the power spectrum of the population difference between…

凝聚态物理 · 物理学 2007-05-23 Jiann-Shing Lih , Jyh-Long Chern

The paper presents a new copula based method for measuring dependence between random variables. Our approach extends the Maximum Mean Discrepancy to the copula of the joint distribution. We prove that this approach has several advantageous…

机器学习 · 计算机科学 2019-08-15 Barnabas Poczos , Zoubin Ghahramani , Jeff Schneider

This paper characterizes the statistics of effective fading gain in multi-tier cellular networks with strongest base station (BS) cell association policy. First, we derive the probability of association with the $n$-th nearest BS in the…

信息论 · 计算机科学 2017-06-01 Mustafa A. Kishk , Harpreet S. Dhillon