Results 81 to 90 of about 1,897,069 (281)

Slotted Aloha for Networked Base Stations with Spatial and Temporal Diversity [PDF]

open access: yesarXiv, 2014
We consider framed slotted Aloha where $m$ base stations cooperate to decode messages from $n$ users. Users and base stations are placed uniformly at random over an area. At each frame, each user sends multiple replicas of its packet according to a prescribed distribution, and it is heard by all base stations within the communication radius $r$.
arxiv  

Modelling the energy efficiency of microcell base stations [PDF]

open access: yes, 2011
The power consumption of wireless access networks will become a major issue in the coming years. Therefore, it is important to have a realistic idea about the power consumption of each element in those access networks. In this paper, an energy efficiency
Deruyck, Margot   +3 more
core  

An Examination of Aerosol Jet‐Printed Surface Roughness and its Impact on the Performance of High‐Frequency Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores aerosol jet‐printed (AJP) surface roughness, its effects on the performance of microwave electronics, and its process contributors. First, an electromagnetic model is vetted for AJP's unique roughness signature. Simulations are built which show process‐induced roughness is as significant as conductor resistivity in driving microwave
Christopher Areias, Alkim Akyurtlu
wiley   +1 more source

Green Base Station Assignment for NOMA-Enabled HCNs

open access: yesIEEE Access, 2019
In this paper, for the heterogeneous cellular networks (HCNs) with non-orthogonal multiple access (NOMA), we mainly concentrate on the design of green base station (BS) assignment integrating with power allocation.
Tianqing Zhou   +5 more
doaj   +1 more source

Channel Service Based High Speed Railway Base Station Arrangement [PDF]

open access: yesarXiv, 2013
With the rapid development of high-speed railways, demands on high mobility wireless communication increase greatly. To provide stable and high data rate wireless access for users in the train, it is necessary to properly deploy base stations along the railway.
arxiv  

Spatio-Temporal Dynamic Graph Relation Learning for Urban Metro Flow Prediction [PDF]

open access: yesarXiv, 2022
Urban metro flow prediction is of great value for metro operation scheduling, passenger flow management and personal travel planning. However, it faces two main challenges. First, different metro stations, e.g. transfer stations and non-transfer stations, have unique traffic patterns.
arxiv  

Spatial SINR Games of Base Station Placement and Mobile Association

open access: yes, 2011
We study the question of determining locations of base stations that may belong to the same or to competing service providers. We take into account the impact of these decisions on the behavior of intelligent mobile terminals who can connect to the base ...
Altman, Eitan   +3 more
core   +1 more source

Femtosecond Single‐ and Double‐Pulse Fabrication of Periodic Nanostructures on Stainless Steel for Surface‐Enhanced Raman Spectroscopy

open access: yesAdvanced Engineering Materials, EarlyView.
Periodic submicron features are fabricated on 304 stainless steel using single and double femtosecond laser pulses. By adjusting polarization, fluence, and inter‐pulse delay, 1D and 2D nanostructures are formed. Enhanced hydrophobicity and dense surface‐enhanced Raman spectroscopy hotspots enable analyte detection down to 10−10 M with good ...
Balaji Baskar   +3 more
wiley   +1 more source

Competitive Charging Station Pricing for Plug-in Electric Vehicles [PDF]

open access: yesarXiv, 2015
This paper considers the problem of charging station pricing and plug-in electric vehicles (PEVs) station selection. When a PEV needs to be charged, it selects a charging station by considering the charging prices, waiting times, and travel distances.
arxiv  

"WindFi" - a renewable powered base station for rural broadband [PDF]

open access: yes, 2012
The HopScotch rural wireless broadband access test bed uses a network of low power base stations, powered by renewable energy sources to provide a low-cost rural broadband solution.
Brew, Malcolm Ronald   +4 more
core  

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