NDLI: Evaluating the performance boundaries of WI-FI, WiMAX and UMTS using the network simulator (ns-2)

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Evaluating the performance boundaries of WI-FI, WiMAX and UMTS using the network simulator (ns-2)

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Evaluating the performance boundaries of WI-FI, WiMAX and UMTS using the network simulator (ns-2)

Content Provider	ACM Digital Library
Author	Márquez-Barja, Johann M. Calafate, Carlos T. Manzoni, Pietro Cano, Juan-Carlos
Abstract	Currently, the different wireless technologies available allow users to access the Internet under the "always on" paradigm. Therefore, switching from one wireless technology to another, a process known as vertical handover, is often required. It is very important for vertical handover agents to know the performance of each candidate wireless network in order to switch into a network that fulfills the applications' requirements. In this work we present a performance evaluation of the main wireless technologies currently in use by mobile devices: Wi-Fi, WiMAX and UMTS. In our set of experiments we tested various schemes with different parameters for each technology, including modulation and channel bandwidth. Using the Network Simulator ns-2, we evaluate the performance of each network technology under different network congestion conditions. Results show that each technology offers different data rates, depending on the selected parameters. Moreover, we found that bandwidth availability status becomes of utmost importance for successful vertical handover.
Starting Page	25
Ending Page	30
Page Count	6
File Format	PDF
ISBN	9781450302784
DOI	10.1145/1868612.1868618
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2010-10-20
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Performance evaluation Wi-fi Wimax Ns-2 Umts
Content Type	Text
Resource Type	Article

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