scholarly journals Co-existence performance evaluation of wireless computer networks in a typical office environment

2009 ◽  
Vol 6 (1) ◽  
pp. 169-184 ◽  
Author(s):  
Andreas Miaoudakis ◽  
Dimitrios Stratakis ◽  
Emmanouel Antonidakis ◽  
Vassilios Zaharopoulos ◽  
Radovan Stojanovic
Keyword(s):  
Local Area Networks ◽  
Local Area ◽  
Wireless Local Area Networks ◽  
The Other ◽  
Personal Area Networks ◽  
Wireless Personal Area Networks ◽  
Ieee 802.11B ◽  
Input Devices ◽  
Office Environment ◽  
Ism Band

The Wireless Local Area Networks (WLANs) are often used as a wireless extension to the typical office network infrastructure providing mobility to the users. In addition Wireless Personal Area Networks (WPANs) serve interconnection to computer and mobile phone peripherals as headsets, input devices, printers etc. Thus it is common that WLANs and WPANs have to operate in the same area. IEEE 802.11b/g is the most popular WLAN technology operating in the 2.4GHz Industrial Medical and Scientific (ISM) band. On the other hand Bluetooth (BT) is the technology often used to support WPANs. As BT also uses the 2.4GHz ISM band, there an issue of interference between WLANs and PANs. In this work the performance degradation in Wireless Local Area Networks and Wireless Local Area Networks due to coexistence is examined by real measurements. Both 802.11 to 802.11 and 802.11 to Bluetooth coexistence is addressed.

scholarly journals Experimental Validation of a Coexistence Model of IEEE 802.15.4 and IEEE 802.11b/g Networks

2010 ◽  
Vol 6 (1) ◽  
pp. 581081 ◽  
Author(s):  
Wei Yuan ◽  
Xiangyu Wang ◽  
Jean-Paul M. G. Linnartz ◽  
Ignas G. M. M. Niemegeers
Keyword(s):  
Experimental Validation ◽  
Ieee 802.15.4 ◽  
Local Area Networks ◽  
Real Life ◽  
Local Area ◽  
Wireless Local Area Networks ◽  
Wireless Sensor ◽  
Ieee 802.11B ◽  
Ism Band ◽  
Coexistence Issues

As IEEE 802.15.4 Wireless Sensor Networks (WSNs) and IEEE 802.11b/g Wireless Local Area Networks (WLANs) are often collocated, coexistence issues arise as these networks share the same 2.4 GHz Industrial, Scientific, and Medical (ISM) band. Consequently, their performance may degrade. We have proposed a coexistence model of IEEE 802.15.4 and IEEE 802.11b/g networks, which addresses their coexistence behavior and explains their coexistence performance. As an extension of the previous work, a compact testbed was developed and experiments on the coexistence issues between these networks were conducted. The experiments not only validated the theoretical model but also provided more information and insights about the coexistence issues in the real-life environment.

Wi-Fi Deployment in Large New Zealand Organizations

2007 ◽  
pp. 24-271
Author(s):  
Bryan Houliston ◽  
Nurul Sarkar
Keyword(s):  
Wireless Networks ◽  
New Zealand ◽  
Case Studies ◽  
Low Cost ◽  
Local Area Networks ◽  
Local Area ◽  
Wireless Local Area Networks ◽  
User Mobility ◽  
Ieee 802.11B

Wi-Fi (also known as IEEE 802.11b) networks are gaining widespread popularity as wireless local area networks (WLANs) due to their simplicity in operation, robustness, low cost, and user mobility offered by the technology. It is a viable technology for wireless local area networking applications in both business and home environments. This chapter reports on a survey of large New Zealand organizations focusing on the level of Wi-Fi deployment, reasons for non-deployment, the scope of deployment, investment in deployment, problems encountered, and future plans. Our findings show that most organizations have at least considered the technology, though a much smaller proportion has deployed it on any significant scale. A follow up review of the latest published case studies and surveys suggests that while Wi-Fi networks are consolidating, interest is growing in wider area wireless networks.

scholarly journals Performance evaluation for outdoor wireless scenarios based on IEEE 802.11b/g in the presence of co-channel interference

2020 ◽  
Vol 9 (1) ◽  
pp. 187-197
Author(s):  
Roman Alcides Lara-Cueva ◽  
Michael Santiago Simba-Herrera
Keyword(s):  
Local Area Networks ◽  
Local Area ◽  
Wireless Local Area Networks ◽  
Voice Over Internet Protocol ◽  
Ieee 802.11B ◽  
Time Service ◽  
Delay Jitter ◽  
Channel Interference ◽  
Optimal Values

Voice over Internet Protocol (VoIP) has evolved over the years, being a real-time service. VoIP has been coupled to different technologies, one of them is WiFi, which is one of the most used for wireless local area networks in domestic and commercial environments. In this paper, we evaluate the performance of wireless scenarios by considering VoIP traffic, based on WiFi technology in conformance with IEEE 802.11b/g in interfered outdoor scenarios, by considering an intrusive injection traffic technique, for codecs G711 (1 sample), G711 (2 samples), G723, G729 (2 samples), and G729 (3 samples), related to the main metrics associated to Quality of Service (QoS) parameters. Our results show the best performance was obtained with the codecs G723 and G729 (3 samples), obtaining up to 30 simultaneous voice connections with optimal values of delay, jitter and packet loss according to the recommendations given for VoIP by ITU-T, while the worst performance was obtained with the codec G711 (2 samples), obtaining only 5 simultaneous voice connections, reaching an efficiency loss of around 18% in a co-channel interference scenario.

Link-Level Simulator for Wireless local Area Network

2018 ◽  
Vol 6 (7) ◽  
pp. 314
Author(s):  
Chaithra. H. U ◽  
Vani H.R
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area Networks ◽  
Local Area ◽  
Long Term Evolution ◽  
Wireless Local Area Networks ◽  
Area Network ◽  
Network Simulator ◽  
Term Evolution

Now a days in Wireless Local Area Networks (WLANs) used in different fields because its well-suited simulator and higher flexibility. The concept of WLAN  with  advanced 5th Generation technologies, related to a Internet-of-Thing (IOT). In this project, representing the Network Simulator (NS-2) used linked-level simulators for Wireless Local Area Networks and still utilized IEEE 802.11g/n/ac with advanced IEEE 802.11ah/af technology. Realization of the whole Wireless Local Area Networking linked-level simulators inspired by the recognized Vienna Long Term Evolution- simulators. As a outcome, this is achieved to link together that simulator to detailed performances of Wireless Local Area Networking with Long Term Evolution, operated in the similar RF bands. From the advanced 5th Generation support cellular networking, such explore is main because different coexistences scenario can arise linking wireless communicating system to the ISM and UHF bands.

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