scholarly journals Correction to: Rbot: development of a robot‑driven radio base station maintenance system

2021 ◽  
Author(s):  
Djamel Sadok ◽  
Daniel Bezerra ◽  
Marrone Dantas ◽  
Gabriel Reis ◽  
Pedro Leuchtenberg ◽  
...  
Keyword(s):  
Base Station ◽  
Maintenance System

Research and Realize of High Availability in Femto Communication System

2012 ◽  
Vol 249-250 ◽  
pp. 1219-1223
Author(s):  
Zhi Yuan Shi ◽  
Bin Xu ◽  
Lian Fen Huang
Keyword(s):  
Communication Network ◽  
Communication System ◽  
Base Station ◽  
High Availability ◽  
Access Technology ◽  
System Availability ◽  
3G Networks ◽  
Maintenance System ◽  
Backup System ◽  
Indoor Coverage

With the continuous development of 3G networks, Femto has gotten more and more attention and development, as a kind of access technology in cellular base station,it improves indoor coverage、cell capacity and relieve network pressure of outdoor macro base station. But how to ensure the efficient and uninterrupted in communication network is a problem which we currently facing. This paper will solve this problem using HA (High Availability) technology, when the computer system or network hardware or software fail, it can switch to the backup system by the switch-over technology to achieve uninterrupted service and maintenance system availability.

Gripper Design for Radio Base Station Autonomous Maintenance System

2021 ◽  
Author(s):  
Gabriel Reis ◽  
Marrone Dantas ◽  
Daniel Bezerra ◽  
Gibson Nunes ◽  
Pedro Dreyer ◽  
...  
Keyword(s):  
Base Station ◽  
Maintenance System

Rbot: development of a robot-driven radio base station maintenance system

2021 ◽  
Author(s):  
Djamel Sadok ◽  
Daniel Bezerra ◽  
Marrone Dantas ◽  
Gabriel Reis ◽  
Pedro Leuchtenberg ◽  
...  
Keyword(s):  
Base Station ◽  
Maintenance System

A Survey on Hierarchical Cluster Based Secure Routing Protocols and Key Management Schemes in Wireless Sensor Networks

2018 ◽  
pp. 18-26
Author(s):  
Yugashree Bhadane ◽  
Pooja Kadam
Keyword(s):  
Routing Protocol ◽  
Routing Protocols ◽  
Key Management ◽  
Energy Efficient ◽  
Base Station ◽  
Secure Routing ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Management Schemes ◽  
Cluster Based Routing

Now days, wireless technology is one of the center of attention for users and researchers. Wireless network is a network having large number of sensor nodes and hence called as “Wireless Sensor Network (WSN)”. WSN monitors and senses the environment of targeted area. The sensor nodes in WSN transmit data to the base station depending on the application. These sensor nodes communicate with each other and routing is selected on the basis of routing protocols which are application specific. Based on network structure, routing protocols in WSN can be divided into two categories: flat routing, hierarchical or cluster based routing, location based routing. Out of these, hierarchical or cluster based routing is becoming an active branch of routing technology in WSN. To allow base station to receive unaltered or original data, routing protocol should be energy-efficient and secure. To fulfill this, Hierarchical or Cluster base routing protocol for WSN is the most energy-efficient among other routing protocols. Hence, in this paper, we present a survey on different hierarchical clustered routing techniques for WSN. We also present the key management schemes to provide security in WSN. Further we study and compare secure hierarchical routing protocols based on various criteria.

Fair Deployment of an Unmanned Aerial Vehicle Base Station for Maximal Coverage

2019 ◽  
Vol E102.B (10) ◽  
pp. 2014-2020
Author(s):  
Yancheng CHEN ◽  
Ning LI ◽  
Xijian ZHONG ◽  
Yan GUO
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Base Station ◽  
Aerial Vehicle

Analysis of Antenna Types Performance in Mobile Phone Base Station

2017 ◽  
Author(s):  
Saba Fadhel Jaf ◽  
Muhamed Fadhel Jaf ◽  
Niyaz Fadhel Jaf
Keyword(s):  
Mobile Phone ◽  
Base Station ◽  
Mobile Phone Base Station

Study of Power Control in CDMA System on the basis of optimization Technique

2017 ◽  
Vol 7 (8) ◽  
pp. 126
Author(s):  
. Geetanjli
Keyword(s):  
Power Control ◽  
Multiple Access ◽  
Optimization Technique ◽  
System Optimization ◽  
Base Station ◽  
Particle Swarm Algorithm ◽  
Cdma System ◽  
Frequency Division ◽  
Cdma Systems ◽  
Time Division

The power control in CDMA systems, grant numerous users to share resources of the system uniformly between each other, leading to expand capacity. With convenient power control, capacity of CDMA system is immense in contrast of frequency division multiple access (FDMA) and time division multiple access (TDMA). If power control is not achieved numerous problems such as the near-far effect will start to monopolize and consequently will reduce the capacity of the CDMA system. However, when the power control in CDMA systems is implemented, it allows numerous users to share resources of the system uniformly between themselves, leading to increased capacity For power control in CDMA system optimization algorithms i.e. genetic algorithm & particle swarm algorithm can be used which regulate a convenient power vector. These power vector or power levels are dogged at the base station and announce to mobile units to alter their transmitting power in accordance to these levels. The performances of the algorithms are inspected through both analysis and computer simulations, and compared with well-known algorithms from the literature.

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