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In the recent past, new enhancements based on the well established Aloha technique (CRDSA, CRDSA++, IRSA) have demonstrated the capability to reach higher throughput than traditional SA, in bursty traffic conditions and without any need of…

信息论 · 计算机科学 2015-01-26 Alessio Meloni , Maurizio Murroni

We extend the single-site coherent potential approximation (CPA) to include the effects of non-local disorder correlations (alloy short-range order) on the electronic structure of random alloy systems. This is achieved by mapping the…

强关联电子 · 物理学 2009-11-10 M. S. Laad , L. Craco

Limitation of the cost of coordination and contention among a large number of nodes calls for grant-free approaches, exploiting physical layer techniques to solve collisions. Successive Interference Cancellation (SIC) is becoming a key…

信号处理 · 电气工程与系统科学 2024-06-28 Andrea Baiocchi , Asmad Razzaque

Introducing controlled overlap among a few repetition blocks yields a fourfold asymptotic rate improvement while preserving an average stabilizer weight of \(4\). Substituting the overlapped outer layer with an LDPC code further produces a…

信息论 · 计算机科学 2025-11-21 En-Jui Chang

An asymptotic technique is presented for finding the spectral efficiency of multi-antenna links in wireless networks where transmitters have Channel-State-Information (CSI) corresponding to their target receiver. Transmitters are assumed to…

信息论 · 计算机科学 2010-09-22 Siddhartan Govindasamy , Daniel W. Bliss , David H. Staelin

In this paper we study the nonasymptotic bounds of a special Joint Source-Channel Coding system with hierarchical source, where an observable source and an unobservable indirect source are required to be reconstructed. Namely, we focus on…

信息论 · 计算机科学 2026-03-17 Shuo Shao , Chao Qi , Jincheng Dai

We consider a classical multiple access system with a single transmission channel, finite number of users (users), and randomized transmission protocol (ALOHA). We assume that every user sends messages to the base station with various…

信息论 · 计算机科学 2022-05-04 Dmitriy Kim , Georgi Georgiev , Natalya Markovskaya

The logistic loss function is often advocated in machine learning and statistics as a smooth and strictly convex surrogate for the 0-1 loss. In this paper we investigate the question of whether these smoothness and convexity properties make…

机器学习 · 计算机科学 2014-05-16 Elad Hazan , Tomer Koren , Kfir Y. Levy

This paper studies the joint data and semantics lossy compression problem, i.e., an extension of the hidden lossy source coding problem that entails recovering both the hidden and observable sources. We aim to study the nonasymptotic and…

信息论 · 计算机科学 2024-08-20 Huiyuan Yang , Yuxuan Shi , Shuo Shao , Xiaojun Yuan

We consider an ad hoc network in which each multi-antenna transmitter sends independent streams to multiple receivers in a Poisson field of interferers. We provide the outage probability and transmission capacity scaling laws, aiming at…

信息论 · 计算机科学 2009-01-19 Marios Kountouris , Jeffrey G. Andrews

Recently, a new class of codes, called sparse superposition or sparse regression codes, has been proposed for communication over the AWGN channel. It has been proven that they achieve capacity using power allocation and various forms of…

信息论 · 计算机科学 2016-03-08 Jean Barbier , Mohamad Dia , Nicolas Macris

We study two-dimensional random sequential adsorption (RSA) of flat polygons and rounded squares aligned in parallel to find a transition in the asymptotic behavior of the kinetics of packing growth. Differences in the kinetics for RSA of…

统计力学 · 物理学 2023-05-31 Michał Cieśla , Piotr Kubala , Aref Abbasi Moud

This paper investigates the security enhancement of an intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) network, where a distributed IRS enabled NOMA transmission framework is proposed to serve users…

信息论 · 计算机科学 2021-04-16 Zheng Zhang , Jian Chen , Qingqing Wu , Yuanwei Liu , Lu Lv , Xunqi Su

Code Division Multiple Access (CDMA) in which the spreading code assignment to users contains a random element has recently become a cornerstone of CDMA research. The random element in the construction is particular attractive as it…

无序系统与神经网络 · 物理学 2015-05-13 Jack Raymond , David Saad

We consider a spectrum-sharing cognitive radio system with antenna selection applied at the secondary transmitter (ST). Based on the extreme value theory, we deduce a simple and accurate expression for the asymptotic distribution of the…

信息论 · 计算机科学 2015-06-18 Ruifeng Duan , Zhong Zheng , Riku Jäntti , Jyri Hämäläinen

The work establishes the exact performance limits of stochastic coded caching when users share a bounded number of cache states, and when the association between users and caches, is random. Under the premise that more balanced…

信息论 · 计算机科学 2021-01-12 Adeel Malik , Berksan Serbetci , Emanuele Parrinello , Petros Elia

We derive asymptotic normality of kernel type deconvolution density estimators. In particular we consider deconvolution problems where the known component of the convolution has a symmetric lambda-stable distribution, 0<lambda<= 2. It turns…

统计理论 · 数学 2007-06-13 A. J. van Es , H. -W. Uh

We report a detailed and systematic study of wave propagation through a stochastic absorbing random medium. Stochastic absorption is modeled by introducing an attenuation constant per unit length $\alpha$ in the free propagation region of…

无序系统与神经网络 · 物理学 2009-10-31 Sandeep K. Joshi , Debendranath Sahoo , A. M. Jayannavar

We investigate the optimal carrier sensing threshold in random CSMA/CA networks considering the effect of binary exponential backoff. We propose an iterative algorithm for optimizing the carrier sensing threshold and hence maximizing the…

信息论 · 计算机科学 2013-12-23 Dong Min Kim , Seong-Lyun Kim

The typical complexity of Constraint Satisfaction Problems (CSPs) can be investigated by means of random ensembles of instances. The latter exhibit many threshold phenomena besides their satisfiability phase transition, in particular a…

无序系统与神经网络 · 物理学 2019-03-29 Louise Budzynski , Federico Ricci-Tersenghi , Guilhem Semerjian
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