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Massive multiple-input multiple-output (MIMO) networks, where the base stations (BSs) are equipped with large number of antennas and serve a number of users simultaneously, are very promising, but suffer from pilot contamination. Despite…

信息论 · 计算机科学 2015-04-10 Anastasios K. Papazafeiropoulos , Hien Quoc Ngo , Tharm Ratnarajah

We develop a framework for downlink heterogeneous cellular networks with line-of-sight (LoS) and non-line-of-sight (NLoS) transmissions. Using stochastic geometry, we derive tight approximation of achievable downlink rate that enables us to…

信息论 · 计算机科学 2017-01-13 Qi Zhang , Howard H. Yang , Tony Q. S. Quek , Jemin Lee

Besides advanced telecommunications techniques, the most prominent evolution of wireless networks is the densification of network deployment. In particular, the increasing access points/users density and reduced cell size significantly…

信息论 · 计算机科学 2017-07-18 Junyu Liu , Min Sheng , Lei Liu , Jiandong Li

This paper is on the spectral efficiency (SE) of a dense multi-cell massive multiple-input multiple-output (MIMO). The channels are spatially correlated and the multi-slope path loss model is considered. In our framework, the channel state…

信息论 · 计算机科学 2020-11-05 FahimeSadat Mirhosseini , Aliakbar Tadaion , S. Mohammad Razavizadeh

This work considers the uplink of a Massive MIMO network wherein the base stations (BSs) are randomly deployed according to a homogenous Poisson point process of intensity $\lambda$. Each BS is equipped with $M$ antennas and serves $K$ user…

信息论 · 计算机科学 2019-06-04 Fahime Sadat Mirhosseini , Andrea Pizzo , Luca Sanguinetti , Aliakbar Tadaion

Installing more base stations (BSs) into the existing cellular infrastructure is an essential way to provide greater network capacity and higher data rate in the 5th-generation cellular networks (5G). However, a non-negligible amount of…

信号处理 · 电气工程与系统科学 2023-03-02 Lin Chen , Ahmed Elzanaty , Mustafa A. Kishk , Luca Chiaraviglio , Mohamed-Slim Alouini

The need to carry out analytical studies of wireless systems often motivates the usage of simplified models which, despite their tractability, can easily lead to an overestimation of the achievable performance. In the case of dense small…

信息论 · 计算机科学 2015-06-08 Carlo Galiotto , Nuno K. Pratas , Nicola Marchetti , Linda Doyle

Cellular operators are continuously densifying their networks to cope with the ever-increasing capacity demand. Furthermore, an extreme densification phase for cellular networks is foreseen to fulfill the ambitious fifth generation (5G)…

网络与互联网体系结构 · 计算机科学 2016-04-29 Rabe Arshad , Hesham ElSawy , Sameh Sorour , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

The performance of cellular system significantly depends on its network topology, where the spatial deployment of base stations (BSs) plays a key role in the downlink scenario. Moreover, cellular networks are undergoing a heterogeneous…

网络与互联网体系结构 · 计算机科学 2014-11-11 Yifan Zhou , Zhifeng Zhao , Qianlan Ying , Rongpeng Li , Xuan Zhou , Xianfu Chen , Honggang Zhang

Recently heterogeneous base station structure has been adopted in cellular systems to enhance system throughput and coverage. In this paper, the uplink coverage probability for the heterogeneous cellular systems is analyzed and derived in…

信息论 · 计算机科学 2012-07-03 Haichuan Ding , Shaodan Ma , Chengwen Xing , Zesong Fei , Jingming Kuang

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

A novel stochastic geometry framework is proposed in this paper to study the downlink coverage performance in a millimeter wave (mmWave) cellular network by jointly considering the polar coordinates of the Base Stations (BSs) with respect…

信息论 · 计算机科学 2024-04-04 Harris K. Armeniakos , Athanasios G. Kanatas , Harpreet S. Dhillon

In a heterogeneous network consisting of macro base stations (MBSs) and small base stations (SBSs), the traditional cell association policy, i.e., coupled access (CA), is far from optimal, due to the significant difference between the…

信息论 · 计算机科学 2016-05-30 Ran Li , Kai Luo , Tao Jiang , Shi Jin

Poisson-Poisson cluster processes (PPCPs) are a class of point processes exhibiting attractive point patterns. Recently, PPCPs are actively studied for modeling and analysis of heterogeneous cellular networks or device-to-device networks.…

信息论 · 计算机科学 2018-03-19 Naoto Miyoshi

Wireless cellular networks have many parameters that are normally tuned upon deployment and re-tuned as the network changes. Many operational parameters affect reference signal received power (RSRP), reference signal received quality…

Densification of the network deployment, for example by adding new sectors or sites within an existing mobile communication network, has traditionally been an efficient way to improve the system coverage and capacity. That will be the case…

网络与互联网体系结构 · 计算机科学 2022-03-30 Kimmo Hiltunen , Yanpeng Yang , Fedor Chernogorov

Our traditional notion of a cell is changing dramatically given the increasing degree of heterogeneity in 4G and emerging 5G systems. Rather than belonging to a specific cell, a device would choose the most suitable connection from the…

网络与互联网体系结构 · 计算机科学 2014-10-28 Katerina Smiljkovikj , Hisham Elshaer , Petar Popovski , Federico Boccardi , Mischa Dohler , Liljana Gavrilovska , Ralf Irmer

In this paper, we analyze the performance of cellular networks and study the optimal base station (BS) density to reduce the network power consumption. In contrast to previous works with similar purpose, we consider Poisson traffic for…

信息论 · 计算机科学 2015-06-24 Zheng Chen , Ling Qiu

The increasing global push for carbon reduction highlights the importance of integrating renewable energy into the supply chain of cellular networks. However, due to the stochastic nature of renewable energy generation and the uneven load…

信号处理 · 电气工程与系统科学 2026-01-21 Yuxi Zhao , Vicente Casares-Giner , Vicent Pla , Luis Guijarro , Iztok Humar , Yi Zhong , Xiaohu Ge

Large-scale blockages like buildings affect the performance of urban cellular networks, especially at higher frequencies. Unfortunately, such blockage effects are either neglected or characterized by oversimplified models in the analysis of…

信息论 · 计算机科学 2013-09-18 Tianyang Bai , Rahul Vaze , Robert W. Heath