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Semi-blind joint channel estimation and data detection (JCD) is a promising approach to mitigate pilot contamination in cell-free massive multiple-input multiple-output (CF-MaMIMO) networks. The effectiveness of such methods fundamentally…

信息论 · 计算机科学 2026-05-21 Christian Forsch , Laura Cottatellucci

Owing to severe path loss and unreliable transmission over a long distance at higher frequency bands, we investigate the problem of path selection and rate allocation for multi-hop self-backhaul millimeter wave (mmWave) networks. Enabling…

网络与互联网体系结构 · 计算机科学 2019-03-11 Trung Kien Vu , Mehdi Bennis , Merouane Debbah , Matti Latva-aho

This paper presents a novel algorithm for residual phase estimation in wireless OFDM systems, including the carrier frequency offset (CFO) and the sampling frequency offset (SFO). The subcarriers are partitioned into several regions which…

信息论 · 计算机科学 2012-11-09 Chen Chen , Yun Chen , Xiaoyang Zeng

This paper considers sparse spiked covariance matrix models in the high-dimensional setting and studies the minimax estimation of the covariance matrix and the principal subspace as well as the minimax rank detection. The optimal rate of…

统计理论 · 数学 2016-03-29 Tony Cai , Zongming Ma , Yihong Wu

Physical layer network coding (PNC) has been studied to serve wireless network MIMO systems with much lower backhaul load than approaches such as Cloud Radio Access Network (Cloud-RAN) and coordinated multipoint (CoMP). In this paper, we…

信号处理 · 电气工程与系统科学 2018-05-22 Tong Peng , Yi Wang , Alister G. Burr , Mohammad Shikh-Bahaei

We consider the problem of testing for the presence (or detection) of an unknown sparse signal in additive white noise. Given a fixed measurement budget, much smaller than the dimension of the signal, we consider the general problem of…

信息论 · 计算机科学 2015-03-19 Ramin Zahedi , Ali Pezeshki , Edwin K. P. Chong

This letter proposes a novel hybrid automatic repeat request with chase combining assisted sparse code multiple access (HARQ-CC-SCMA) scheme. Depending on whether the same superimposed packet are retransmitted, synchronous and asynchronous…

信息论 · 计算机科学 2024-04-16 Man Wang , Zheng Shi , Yunfei Li , Xianda Wu , Weiqiang Tan , Xinrong Ye

This paper is a quantitative analysis on packet switched network with a view to generalize load balancing and determination of appropriate routing algorithm in multipath environment. Several routing algorithms have been introduced for…

网络与互联网体系结构 · 计算机科学 2010-07-15 G. G. Md. Nawaz Ali , Rajib Chakraborty , Md. Shihabul Alam , Edward Chan

The max-product algorithm, a local message-passing scheme that attempts to compute the most probable assignment (MAP) of a given probability distribution, has been successfully employed as a method of approximate inference for applications…

信息论 · 计算机科学 2014-01-07 Nicholas Ruozzi , Sekhar Tatikonda

In this paper, we explore the use of machine learning methods as an efficient alternative to correlation in performing packet detection. Targeting satellite-based massive machine type communications and internet of things scenarios, our…

网络与互联网体系结构 · 计算机科学 2020-08-26 Estefania Recayte , Andrea Munari , Federico Clazzer

Throughput and per-packet delay can present strong trade-offs that are important in the cases of delay sensitive applications.We investigate such trade-offs using a random linear network coding scheme for one or more receivers in single hop…

网络与互联网体系结构 · 计算机科学 2012-02-06 Weifei Zeng , Chris T. K. Ng , Muriel Medard

Wireless communication can be simply subjected to malicious attacks due to its open nature and shared medium. Detecting jamming attacks is the first and necessary step to adopt the anti-jamming strategies. This paper presents novel…

信息论 · 计算机科学 2025-09-16 Amir Mehrabian , Georges Kaddoum

This paper considers a MIMO Integrated Sensing and Communication (ISAC) system, where a base station simultaneously serves a MIMO communication user and a remote MIMO sensing receiver, without channel state information (CSI) at the…

信号处理 · 电气工程与系统科学 2025-06-12 Alex Obando , Saman Atapattu , Prathapasinghe Dharmawansa , Akram Hourani , Kandeepan Sithamparanathan

In order to further exploit the potential of joint multi-antenna radar-communication (RadCom) system, we propose two transmission techniques respectively based on separated and shared antenna deployments. Both techniques are designed to…

信号处理 · 电气工程与系统科学 2021-01-29 Chengcheng Xu , Bruno Clerckx , Jianyun Zhang

This paper proposes a belief propagation (BP)-based algorithm for sequential detection and estimation of multipath component (MPC) parameters based on radio signals. Under dynamic channel conditions with moving transmitter/receiver, the…

信息论 · 计算机科学 2022-05-24 Xuhong Li , Erik Leitinger , Alexander Venus , Fredrik Tufvesson

In this paper, the problem of load balancing in network intrusion detection system is considered. Load balancing method based on work of several components of network intrusion detection system and on the analysis of multifractal properties…

网络与互联网体系结构 · 计算机科学 2019-04-15 Dmytro Ageyev , Lyudmyla Kirichenko , Tamara Radivilova , Maksym TawalbehRadivilova , Maksym Tawalbeh , Oleksii Baranovskyi

We consider a setting in which a sender wishes to broadcast a block of K data packets to a set of wireless receivers, where each of the receivers has a subset of the data packets already available to it (e.g., from prior transmissions) and…

信息论 · 计算机科学 2015-03-16 Mingchao Yu , Alex Sprintson , Parastoo Sadeghi

As the interest in multi- and many-objective optimization algorithms grows, the performance comparison of these algorithms becomes increasingly important. A large number of performance indicators for multi-objective optimization algorithms…

人工智能 · 计算机科学 2024-11-28 Amin Ibrahim , Azam Asilian Bidgoli , Shahryar Rahnamayan , Kalyanmoy Deb

Semiparametric accelerated failure time (AFT) models are a useful alternative to Cox proportional hazards models, especially when the assumption of constant hazard ratios is untenable. However, rank-based criteria for fitting AFT models are…

统计方法学 · 统计学 2022-01-20 Piotr M. Suder , Aaron J. Molstad

Independent parallel q-ary symmetric channels are a suitable transmission model for several applications. The proposed weighted-Hamming metric is tailored to this setting and enables optimal decoding performance. We show that some…

信息论 · 计算机科学 2024-02-16 Sebastian Bitzer , Alberto Ravagnani , Violetta Weger