ComputationWorld 2019
May 05, 2019 to May 09, 2019 - Venice, Italy

  • SERVICE COMPUTATION 2019, The Eleventh International Conference on Advanced Service Computing
  • CLOUD COMPUTING 2019, The Tenth International Conference on Cloud Computing, GRIDs, and Virtualization
  • FUTURE COMPUTING 2019, The Eleventh International Conference on Future Computational Technologies and Applications
  • COGNITIVE 2019, The Eleventh International Conference on Advanced Cognitive Technologies and Applications
  • ADAPTIVE 2019, The Eleventh International Conference on Adaptive and Self-Adaptive Systems and Applications
  • CONTENT 2019, The Eleventh International Conference on Creative Content Technologies
  • PATTERNS 2019, The Eleventh International Conference on Pervasive Patterns and Applications
  • COMPUTATION TOOLS 2019, The Tenth International Conference on Computational Logics, Algebras, Programming, Tools, and Benchmarking
  • BUSTECH 2019, The Ninth International Conference on Business Intelligence and Technology

InfoSys 2019
June 02, 2019 to June 06, 2019 - Athens, Greece

  • ICNS 2019, The Fifteenth International Conference on Networking and Services
  • ICAS 2019, The Fifteenth International Conference on Autonomic and Autonomous Systems
  • ENERGY 2019, The Ninth International Conference on Smart Grids, Green Communications and IT Energy-aware Technologies
  • WEB 2019, The Seventh International Conference on Building and Exploring Web Based Environments
  • DBKDA 2019, The Eleventh International Conference on Advances in Databases, Knowledge, and Data Applications
  • SIGNAL 2019, The Fourth International Conference on Advances in Signal, Image and Video Processing
  • BIOTECHNO 2019, The Eleventh International Conference on Bioinformatics, Biocomputational Systems and Biotechnologies

InfoWare 2019
June 30, 2019 to July 04, 2019 - Rome, Italy

  • ICCGI 2019, The Fourteenth International Multi-Conference on Computing in the Global Information Technology
  • ICWMC 2019, The Fifteenth International Conference on Wireless and Mobile Communications
  • VEHICULAR 2019, The Eighth International Conference on Advances in Vehicular Systems, Technologies and Applications
  • INTERNET 2019, The Eleventh International Conference on Evolving Internet
  • COLLA 2019, The Ninth International Conference on Advanced Collaborative Networks, Systems and Applications
  • INTELLI 2019, The Eighth International Conference on Intelligent Systems and Applications
  • VISUAL 2019, The Fourth International Conference on Applications and Systems of Visual Paradigms
  • HUSO 2019, The Fifth International Conference on Human and Social Analytics
  • BRAININFO 2019, The Fourth International Conference on Neuroscience and Cognitive Brain Information

DataSys 2019
July 28, 2019 to August 01, 2019 - Nice, France

  • AICT 2019, The Fifteenth Advanced International Conference on Telecommunications
  • ICIW 2019, The Fourteenth International Conference on Internet and Web Applications and Services
  • ICIMP 2019, The Fourteenth International Conference on Internet Monitoring and Protection
  • SMART 2019, The Eighth International Conference on Smart Cities, Systems, Devices and Technologies
  • IMMM 2019, The Ninth International Conference on Advances in Information Mining and Management
  • INFOCOMP 2019, The Ninth International Conference on Advanced Communications and Computation
  • MOBILITY 2019, The Ninth International Conference on Mobile Services, Resources, and Users
  • SPWID 2019, The Fifth International Conference on Smart Portable, Wearable, Implantable and Disability-oriented Devices and Systems
  • ACCSE 2019, The Fourth International Conference on Advances in Computation, Communications and Services

NexTech 2019
September 22, 2019 to September 26, 2019 - Porto, Portugal

  • UBICOMM 2019, The Thirteenth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies
  • ADVCOMP 2019, The Thirteenth International Conference on Advanced Engineering Computing and Applications in Sciences
  • SEMAPRO 2019, The Thirteenth International Conference on Advances in Semantic Processing
  • AMBIENT 2019, The Ninth International Conference on Ambient Computing, Applications, Services and Technologies
  • EMERGING 2019, The Eleventh International Conference on Emerging Networks and Systems Intelligence
  • DATA ANALYTICS 2019, The Eighth International Conference on Data Analytics
  • GLOBAL HEALTH 2019, The Eighth International Conference on Global Health Challenges
  • CYBER 2019, The Fourth International Conference on Cyber-Technologies and Cyber-Systems

NetWare 2019
October 27, 2019 to October 31, 2019 - Nice, France

  • SENSORCOMM 2019, The Thirteenth International Conference on Sensor Technologies and Applications
  • SENSORDEVICES 2019, The Tenth International Conference on Sensor Device Technologies and Applications
  • SECURWARE 2019, The Thirteenth International Conference on Emerging Security Information, Systems and Technologies
  • AFIN 2019, The Eleventh International Conference on Advances in Future Internet
  • CENICS 2019, The Twelfth International Conference on Advances in Circuits, Electronics and Micro-electronics
  • ICQNM 2019, The Thirteenth International Conference on Quantum, Nano/Bio, and Micro Technologies
  • FASSI 2019, The Fifth International Conference on Fundamentals and Advances in Software Systems Integration
  • GREEN 2019, The Fourth International Conference on Green Communications, Computing and Technologies

SoftNet 2019
November 24, 2019 to November 28, 2019 - Valencia, Spain

  • ICSEA 2019, The Fourteenth International Conference on Software Engineering Advances
  • ICSNC 2019, The Fourteenth International Conference on Systems and Networks Communications
  • CENTRIC 2019, The Twelfth International Conference on Advances in Human-oriented and Personalized Mechanisms, Technologies, and Services
  • VALID 2019, The Eleventh International Conference on Advances in System Testing and Validation Lifecycle
  • SIMUL 2019, The Eleventh International Conference on Advances in System Simulation
  • SOTICS 2019, The Ninth International Conference on Social Media Technologies, Communication, and Informatics
  • INNOV 2019, The Eighth International Conference on Communications, Computation, Networks and Technologies
  • HEALTHINFO 2019, The Fourth International Conference on Informatics and Assistive Technologies for Health-Care, Medical Support and Wellbeing

 


ThinkMind // International Journal On Advances in Telecommunications, volume 10, numbers 3 and 4, 2017 // View article tele_v10_n34_2017_6


Experimental Assessment of WiFi Coordination Strategies Using Radio Environment Maps

Authors:
Rogerio Dionisio
Paulo Marques
Tiago Alves
Jorge Ribeiro

Keywords: Radio Environment Map; Portable Radio Test-bed; Radio Resource Management; WiFi; Interference Management; Load Balancing

Abstract:
The rapidly increasing popularity of WiFi has created unprecedented levels of congestion in the unlicensed frequency bands, especially in densely populated urban areas. This results mainly because of the uncoordinated operation and the unmanaged interference between WiFi access points. In this context, the main objective of this experiment is to assess the benefit of a coordinated management of radio resources in dense WiFi networks for both 2.4 GHz and 5 GHz bands, using Radio Environment Maps (REM). This experiment has used the w-iLab.t test environment and the portable test-bed provided by iMINDS for indoor scenarios. It was shown that REMs can detect the presence of interfering links on the network (co-channel or adjacent channel interference), and a suitable coordination strategy can use this information to reconfigure Access Points (AP) channel assignment and re-establish the client connection. The coordination strategy almost double the capacity of a WiFi link under strong co–channel interference, from 6.8 Mbps to 11.8 Mbps, increasing the aggregate throughput of the network from 58.7 Mbps to 71.5 Mbps. However, this gain comes with the cost of a relatively high-density network of spectrum sensors, increasing the cost of deployment. The technique of AP hand-off was tested to balance the load form one AP to another, although the aggregate throughput is lower after load balancing. REMs are also capable of detecting coverage holes on the network, and a suitable Radio Resource Management strategy use this information to reconfigure the APs transmit power to re-establish the client connection and increase the throughput of the overloaded AP, at a cost of diminishing the aggregate throughput of the network. The insights coming out from this experiment helped to understand the opportunities and limitations of WiFi coordination strategies in realistic scenarios.

Pages: 155 to 166

Copyright: Copyright (c) to authors, 2017. Used with permission.

Publication date: December 31, 2017

Published in: journal

ISSN: 1942-2601

SERVICES CONTACT
2010 - 2017 © ThinkMind. All rights reserved.
Read Terms of Service and Privacy Policy.