Results 21 to 30 of about 98,405 (300)

A Survey on Security Approaches on PPDR Systems Toward 5G and Beyond

open access: yesIEEE Access, 2022
The present survey seeks to contribute to the existing discussion about the changing of current Public Protection and Disaster Relief (PPDR) networks (TETRA, TETRAPOL, P25, and DMR) to commercial cellular networks (4G and 5G).
Floriano Neto   +2 more
doaj   +1 more source

Downlink outage performance of heterogeneous cellular networks [PDF]

open access: yes2016 IEEE International Symposium on Information Theory (ISIT), 2016
This paper derives tight performance upper and lower bounds on the downlink outage efficiency of K-tier heterogeneous cellular networks (HCNs) for general signal propagation models with Poisson distributed base stations in each tier. In particular, the proposed approach to analyze the outage metrics in a K-tier HCN allows for the use of general bounded
Serkan Ak   +2 more
openaire   +2 more sources

Traffic Offloading/Onloading in Multi-RAT Cellular Networks [PDF]

open access: yes, 2013
We analyze next generation cellular networks, offering connectivity to mobile users through multiple radio access technologies (RATs), namely LTE and WiFi.
Gribaudo M.   +9 more
core   +1 more source

Enabling Heterogeneous IoT Networks over 5G Networks with Ultra-Dense Deployment—Using MEC/SDN [PDF]

open access: yes, 2021
The Internet of things (IoT) is the third evolution of the traditional Internet that enables interaction and communication among machines. Many IoT platforms and networks have been developed, and recently, market sectors have started to develop specific ...
Andrey Koucheryavy   +4 more
core   +1 more source

Interference Alignment for the Uplink Heterogeneous Cellular Networks

open access: yesMATEC Web of Conferences, 2016
Heterogeneous cellular networks, due to its multi-tier topological structure, provide significant improvements in terms of increased data rates and cell coverage.
Gao Yingyuan, Wang Gang, Cui Siqian
doaj   +1 more source

Rotating cluster mechanism for coordinated heterogeneous MIMO cellular networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
To increase the average achievable rates per user for cluster-edge users, a rotating clustering scheme for the downlink of a coordinated multicell multiuser multiple-input multiple-output system is proposed in this paper and analyzed in two network ...
Hakimeh Purmehdi   +3 more
doaj   +1 more source

Exploiting dual connectivity in heterogeneous cellular networks [PDF]

open access: yes2017 15th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), 2017
Appeared in part in IEEE WiOpt ...
Narayan Prasad, Sampath Rangarajan
openaire   +2 more sources

Maximizing energy-efficiency in multi-relay OFDMA cellular networks [PDF]

open access: yes, 2013
This contribution presents a method of obtaining the optimal power and subcarrier allocations that maximize the energy-efficiency (EE) of a multi-user, multi-relay, orthogonal frequency division multiple access (OFDMA) cellular network.
Cheung, Kent Tsz Kan   +5 more
core   +1 more source

Energy-Efficient Deployment and Adaptive Sleeping in Heterogeneous Cellular Networks

open access: yesIEEE Access, 2019
This paper focuses on energy efficiency that is a key performance metric in heterogeneous cellular networks to two key areas. First, based on the Poisson point process distributions of small-cell base stations (SBSs) and macrocell base stations (MBSs ...
Yun Li   +5 more
doaj   +1 more source

ABS Ratio Optimization Algorithm for Enhancing Network Energy Efficiency in Hierarchical Heterogeneous Networks [PDF]

open access: yesJisuanji gongcheng, 2018
Hierarchical heterogeneous networks change the topology of traditional cellular networks,and reduce networks energy consumption on the basis of improving networks capacity.However,the serious interlayer interference will cause significant deterioration ...
SUN Yanzan,WANG Jinsong,WU Yating,WANG Tao
doaj   +1 more source

Home - About - Disclaimer - Privacy