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Distance-based attenuation is a critical aspect of wireless communications. As opposed to the ubiquitous power-law path loss model, this paper proposes a stretched exponential path loss model that is suitable for short-range communication.…

信息论 · 计算机科学 2017-11-22 Ahmad AlAmmouri , Jeffrey G. Andrews , François Baccelli

Simultaneous Wireless Information and Power Transfer (SWIPT) over a point-to-point frequency-selective Additive White Gaussian Noise (AWGN) channel is studied. Considering an approximation of the nonlinearity of the harvester, a general…

信息论 · 计算机科学 2019-01-08 Morteza Varasteh , Borzoo Rassouli , Bruno Clerckx

This study investigates the outage performance of an under-laying wireless-powered secondary system that reuses the primary users (PU) spectrum in a multiple-input multiple-output (MIMO) cognitive radio (CR) network. Each secondary user…

信息论 · 计算机科学 2023-09-19 Iman Pazouki , Roshanak Soltani , Mohammad Lari

Signal to Noise Ratio (SNR) is an important index for wireless communications. There are many methods for increasing SNR. In CDMA systems, spreading sequences are used. We consider the frequency-selective wide-sense-stationary…

信息论 · 计算机科学 2016-10-17 Hirofumi Tsuda , Ken Umeno

Active reconfigurable intelligent surfaces (RISs) can mitigate the double-fading loss of passive reflection in satellite downlinks. However, their gains are limited by random co-channel interference, gain-dependent amplifier noise, and…

信号处理 · 电气工程与系统科学 2026-02-13 Muhammad Khalil , Ke Wang , Jinho Choi

This paper examines the impact of system parameters such as access point density and bandwidth partitioning on the performance of randomly deployed, interference-limited, dense wireless networks. While much progress has been achieved in…

信息论 · 计算机科学 2014-08-26 Stelios Stefanatos , Angeliki Alexiou

Opportunistic scheduling (OS) schemes have been proposed previously by the authors for multiuser MIMO-SDMA downlink systems with linear combining. In particular, it has been demonstrated that significant performance improvement can be…

信息论 · 计算机科学 2016-11-17 Man-On Pun , Visa Koivunen , H. Vincent Poor

In this paper, the feasibility of adopting an intelligent reflective surface (IRS) in a cell-free wireless communication system is studied. The received signal-to-noise ratio (SNR) for this IRS-enabled cell-free set-up is optimized by…

信号处理 · 电气工程与系统科学 2021-09-28 Diluka Loku Galappaththige , Dhanushka Kudathanthirige , Gayan Amarasuriya

This paper investigates a multi-antenna cache-enabled network with interference nulling (IN) employed at base stations. Two IN schemes, namely, the fixed IN scheme and the flexible IN scheme are considered to improve the received…

信息论 · 计算机科学 2024-03-05 Tianming Feng , Chenyu Wu , Xiaodong Zheng , Peilin Chen , Yilong Liu , Shuai Han

The calculation of the SIR distribution at the typical receiver (or, equivalently, the success probability of transmissions over the typical link) in Poisson bipolar and cellular networks with Rayleigh fading is relatively straightforward,…

信息论 · 计算机科学 2015-06-05 Martin Haenggi

The utilization of extremely high frequency (EHF) bands can achieve very high throughput in satellite networks (SatNets). Nevertheless, the severe rain attenuation at EHF bands imposes strict limitations on the system availability. Smart…

网络与互联网体系结构 · 计算机科学 2021-04-30 Christos N. Efrem , Athanasios D. Panagopoulos

To address the problem of unsupervised outlier detection in wireless sensor networks, we develop an approach that (1) is flexible with respect to the outlier definition, (2) computes the result in-network to reduce both bandwidth and energy…

数据库 · 计算机科学 2013-05-15 Joel W. Branch , Chris Giannella , Boleslaw Szymanski , Ran Wolff , Hillol Kargupta

This article investigates the performance of uplink rate splitting multiple access (RSMA) in a two-user scenario, addressing an under-explored domain compared to its downlink counterpart. With the increasing demand for uplink communication…

信号处理 · 电气工程与系统科学 2026-04-21 Farjam Karim , Nurul Huda Mahmood , Arthur S. de Sena , Deepak Kumar , Bruno Clerckx , Matti Latva-aho

The meta distribution of the signal-to-interference-ratio (SIR) is an important performance indicator for wireless networks because, for ergodic point processes, it describes the fraction of scheduled links that achieve certain reliability,…

信息论 · 计算机科学 2020-08-27 Konstantinos Koufos , Carl P. Dettmann

In a wireless network, the spatial location of the transmitters has a large impact on the achievable rate at each user location. The optimal placement of -- for example -- cellular base stations is a difficult non-convex problem, and is…

信息论 · 计算机科学 2026-05-08 Lukas Taus , Richard Tsai , Jeffrey G. Andrews

Cellular systems are becoming more heterogeneous with the introduction of low power nodes including femtocells, relays, and distributed antennas. Unfortunately, the resulting interference environment is also becoming more complicated,…

信息论 · 计算机科学 2013-04-29 Robert W. Heath , Marios Kountouris , Tianyang Bai

We consider a mesh network at the edge of a wireless network that connects users to the core network via multiple base stations. For this scenario, we present a novel tree-search-based algorithm that strives to identify effective…

网络与互联网体系结构 · 计算机科学 2025-04-03 Siddhartha Kumar , Mohammad Hossein Moghaddam , Andreas Wolfgang , Tommy Svensson

This paper aims to analyze the stochastic performance of a multiple input multiple output (MIMO) integrated sensing and communication (ISAC) system in a downlink scenario, where a base station (BS) transmits a dual-functional…

信息论 · 计算机科学 2023-05-25 Marziyeh Soltani , Mahtab Mirmohseni , Rahim Tafazolli

This paper derives approximate outage probability (OP) expressions for uplink cell-free massive multiple-input-multiple-output (CF-mMIMO) systems with and without pilot contamination. The system's access points (APs) are considered to have…

信息论 · 计算机科学 2023-06-28 Shashank Shekhar , Muralikrishnan Srinivasan , Sheetal Kalyani , Mohamed-Slim Alouini

The spatial structure of transmitters in wireless networks plays a key role in evaluating the mutual interference and hence the performance. Although the Poisson point process (PPP) has been widely used to model the spatial configuration of…

信息论 · 计算机科学 2014-01-16 Na Deng , Wuyang Zhou , Martin Haenggi