Northampton Electronic Collection of Theses and Research

WiMAX-WiFi convergence with OFDM bridge

Al-Sherbaz, A., Jassim, S. and Adams, C. (2009) WiMAX-WiFi convergence with OFDM bridge. In: Agaian, S. S. and Jassim, S. (eds.) Mobile Multimedia/Image Processing, Security, and Applications 2009 :. Bellingham, Washington: Society of Photo Optical Instrumentation Engineers (SPIE).

Item Type: Book Section
Abstract: Nowadays, Wireless and mobile communications technologies are the most important areas, which are rapidly expanding either in horizontal or vertical directions. WiMAX is trying to compete with WiFi in coverage and data rate, while the inexpensive WiFi still very popular in both personal and business use. Efficient bandwidth usage, Multi-Standard convergence and Wireless Mesh Networks (WMN) are the main vertical tends in the wireless world. WiMAX-WiFi convergence as an ideal technology that provides the best of both worlds: WiMAX new features and the low cost of the WiFi. In order to create a heterogeneous network environment, differences between the two technologies have been investigated and resolved. In the Multi-Carrier WiMAX-WiFi Convergence, the mismatch between the fixed WiMAX-OFDM (Nfft=256) and the WiFi-OFDM (Nfft=64) has been confirmed as a physical layer issue that will never be solved as MAC layer problem; therefore the current proposal is how to build what we called the “Convergence-Bridge”. This bridge is like an extra thin layer, which is responsible for harmonizing the mismatch. For the WiFi-OFDM physical layer, the paper has selected the IEEE 802.11n OFDM standard while it is being developed. The proposal does not suggest changing the standard itself but modifying some functions to be configurable. The IEEE 802.11 standard has fixed the configurations for WiFi mode only, while our proposal is to set up these functions for WiFi and WiMAX modes
Uncontrolled Keywords: Bridge, Convergence, IEEE 802.11, IEEE 802.16, OFDM, WiFi, WiMAX
Creators: Al-Sherbaz, Ali, Jassim, Sabah and Adams, Chris
Editors: Agaian, Sos S and Jassim, Sabah
Publisher: Society of Photo Optical Instrumentation Engineers (SPIE)
Faculties, Divisions and Institutes: Faculties > Faculty of Arts, Science & Technology > Engineering
Date: 4 May 2009
Date Type: Publication
Title of Book: Mobile Multimedia/Image Processing, Security, and Applications 2009 :
Place of Publication: Bellingham, Washington
Language: English
ISBN: 9780819476173
Status: Published / Disseminated
Refereed: Yes

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