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A scheme for detection of abnormality in molecular nano-networks is proposed. This is motivated by the fact that early diagnosis, classification and detection of diseases such as cancer play a crucial role in their successful treatment. The…

信息论 · 计算机科学 2016-11-17 Siavash Ghavami , Farshad Lahouti , Ali Masoudi-Nejad

In this paper, the problem of distributed caching in dense wireless small cell networks (SCNs) is studied using mean field games (MFGs). In the considered SCN, small base stations (SBSs) are equipped with data storage units and cooperate to…

信息论 · 计算机科学 2016-03-24 Kenza Hamidouche , Walid Saad , Mérouane Debbah , H. Vincent Poor

A heterogenous network with base stations (BSs), small base stations (SBSs) and users distributed according to independent Poisson point processes is considered. SBS nodes are assumed to possess high storage capacity and to form a…

信息论 · 计算机科学 2016-11-17 B. N. Bharath , K. G. Nagananda , H. Vincent Poor

We evaluate the influence of multi-snapshot sensing and varying signal-to-noise ratio (SNR) on the overall performance of neural network (NN)-based joint communication and sensing (JCAS) systems. To enhance the training behavior, we…

信号处理 · 电气工程与系统科学 2024-03-06 Charlotte Muth , Benedikt Geiger , Daniel Gil Gaviria , Laurent Schmalen

\textcolor{blue}{In} this paper, we investigate the performance of physical layer security (PLS) over reconfigurable intelligent surfaces (RIS)-aided wireless communication systems, where all fading channels are modeled with Fisher-Snedecor…

信息论 · 计算机科学 2023-04-14 Farshad Rostami Ghadi , Wei-Ping Zhu , Diego Martín

Densifying the network and deploying more antennas at each access point are two principal ways to boost the capacity of wireless networks. However, due to the complicated distributions of random signal and interference channel gains,…

信息论 · 计算机科学 2017-05-03 Xianghao Yu , Chang Li , Jun Zhang , Khaled B. Letaief

In this paper, we investigate physical-layer security for a heterogeneous cellular network consisting of a macro cell and a small cell in the presence of a passive eavesdropper that intends to tap both the macro-cell and small-cell…

信息论 · 计算机科学 2019-01-30 Yulong Zou , Tong Wu , Ming Sun , Jia Zhu , Mujun Qian , Chen Liu

We consider a fading channel in which a multi-antenna transmitter communicates with a multi-antenna receiver through a reconfigurable intelligent surface (RIS) that is made of $N$ reconfigurable passive scatterers impaired by phase noise.…

信息论 · 计算机科学 2020-05-18 Xuewen Qian , Marco Di Renzo , Jiang Liu , Abla Kammoun , Mohamed-Slim Alouini

This paper addresses three critical limitations in previous analyses of RIS-aided wireless systems: propagation environments with fixed diversity gain, restricted spatial correlation profiles, and approximation methods that fail to capture…

Dense deployment of small cells is seen as one of the major approaches for addressing the traffic demands in next-generation 5G wireless networks. The energy efficiency, however, becomes a key concern together with this massive amount of…

网络与互联网体系结构 · 计算机科学 2019-01-01 Haluk Celebi , Yavuz Yapici , Ismail Guvenc , Henning Schulzrinne

The capacity scaling of a Wi-Fi network with fixed transmit power is investigated. The 802.11 MAC appears to impose a hard limit on the area capacity by enforcing single transmissions in overlapped cell coverage areas. However due to the…

网络与互联网体系结构 · 计算机科学 2016-12-20 Jonathan Ling , Howard Huang , Reinaldo Valenzuela

In this paper, we investigate the performance of energy detection-based spectrum sensing over F composite fading channels. To this end, an analytical expression for the average detection probability is firstly derived. This expression is…

信号处理 · 电气工程与系统科学 2018-07-18 Seong Ki Yoo , Simon L. Cotton , Paschalis C. Sofotasios , Sami Muhaidat , Osamah S. Badarneh , George K. Karagiannidis

This paper considers multi-cell Massive MIMO (multiple-input multiple-output) systems where the channels are spatially correlated Rician fading. The channel model is composed of a deterministic line-of-sight (LoS) path and a stochastic…

信息论 · 计算机科学 2019-06-14 Özgecan Özdogan , Emil Björnson , Erik G. Larsson

It has been recently brought into spotlight that through the exploitation of network coding concepts at physical-layer, the interference property of the wireless media can be proven to be a blessing in disguise. Nonetheless, most of the…

网络与互联网体系结构 · 计算机科学 2010-09-21 M. Amin Rahimian , Ali Ayremlou , Farokh Marvasti

Random Linear Network Coding (RLNC) has been proved to offer an efficient communication scheme, leveraging an interesting robustness against packet losses. However, it suffers from a high computational complexity and some novel approaches,…

网络与互联网体系结构 · 计算机科学 2016-07-25 Garrido Pablo , Lucani E. Daniel , Aguero Ramon

This paper investigates a cellular edge caching problem under a very large number of small base stations (SBSs) and users. In this ultra-dense edge caching network (UDCN), conventional caching algorithms are inapplicable as their complexity…

网络与互联网体系结构 · 计算机科学 2018-03-30 Hyesung Kim , Jihong Park , Mehdi Bennis , Seong-Lyun Kim , Mérouane Debbah

Coverage is one of the fundamental issues in wireless sensor networks (WSNs). It reflects the ability of WSNs to detect the fields of interest. In a real sensor networks application, the detection area is always non-ideal and the terrain of…

网络与互联网体系结构 · 计算机科学 2013-12-25 Lin Feng , Tie Qiu , Zhenlong Sun , Feng Xia , Yu Zhou

Recently, spatial stochastic models based on determinantal point processes (DPP) are studied as promising models for analysis of cellular wireless networks. Indeed, the DPPs can express the repulsive nature of the macro base station (BS)…

信息论 · 计算机科学 2015-03-19 Naoto Miyoshi , Tomoyuki Shirai

Statistical models are employed to characterize the clutter in the radar and the reflective signals of the telecommunication receivers. End to this, Rayliegh distribution is the simplest fading models in NLOS channels possessing…

信号处理 · 电气工程与系统科学 2019-01-23 Zabihollah Hasanshahi , Paeiz Azmi , Mohammad Khajezadeh

Survey-based measurements of the spectral energy distributions (SEDs) of galaxies have flux density estimates on badly misaligned grids in rest-frame wavelength. The shift to rest frame wavelength also causes estimated SEDs to have…

天体物理仪器与方法 · 物理学 2023-10-31 David Kent , Tamás Budavári , Thomas J. Loredo , David Ruppert