WiMAX-WiFi techniques for baseband convergence and routing protocols

Al-Sherbaz, A. (2010)
 WiMAX-WiFi techniques for baseband convergence and routing protocols. 
Doctoral thesis. The University of Buckingham.

Abstract
The focus of this study was to investigate solutions that, when implemented in any heterogeneous wireless network, shall enhance the existing standard and routing protocol connectivity without impacting the standard or changing the wireless transceiver’s functions. Thus achieving efficient interoperability at much reduced overheads. The techniques proposed in this research are centred on the lower layers. This because of the facts that WiMax and WiFi standards have not addressed the backward compatibility of the two technologies at the MAC and PHY layers, for both the baseband functions as well as the routing IP addresses. This thesis describes two innovate techniques submitted for a PhD degree. The first technique is to combine WiMax and WiFi signals so to utilise the same "baseband implementation chain" to handle both of these technologies, thus insuring ubiquitous data communication. WiMax-WiFi Baseband Convergence (W2BC) implementation is proposed to offer an optimum configurable solution targeted at combining the 802.16d WiMax and the 802.11a WiFi technologies. This approach provides a fertile ground for future work into combining more OFDM based wireless technologies. Based on analysis and simulation, the W2BC can achieve saving in device cost, size, power consumption and implementation complexity when compared to current side-by-side implementations for these two technologies. The second technique, called "Prime-IP", can be implemented with, and enhance, any routing protocol. During the route discovery process, Prime-IP enables any node on a wireless mesh network (WMN) to dynamically select the best available route on the network. Prime-IP proposes a novel recursive process, based on prime numbers addressing, to accumulate knowledge for nodes beyond the “neighbouring nodes”, and to determine the sequence of all the “intermediate nodes” used to form the route.

To read the thesis go to: http://nectar.northampton.ac.uk/4241/1/AlSherbaz20104241.pdf
Contact Ali.Al-Sherbaz@northampton.ac.uk


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WiMax - WiFi Techniques for Baseband Convergence

A new book by Dr Ali Al-Sherbaz, Department of Computing and Immersive Technologies, University of Northampton "WiMax - WiFi Techniques for Baseband Convergence" has recently being published by Lambert Academic Publishing. ISBN 

978-3-659-49970-8

Book Details
This book illustrates solutions that, when implemented in any heterogeneous wireless network, shall enhance the existing standard without impacting the standard or changing the wireless transceiver’s functions. Thus achieving efficient interoperability at much reduced overheads. The techniques proposed in this research are centred on the lower layers. This because of the facts that WiMax and WiFi standards have not addressed the backward compatibility of the two technologies at the MAC and PHY layers for the baseband functions. The proposed technique is to combine WiMax and WiFi signals so to utilise the same "baseband implementation chain" to handle both of these technologies, thus insuring ubiquitous data communication. WiMax-WiFi Baseband Convergence (W2BC) implementation is proposed to offer an optimum configurable solution targeted at combining the 802.16d WiMax and the 802.11a,n WiFi technologies. This approach provides a fertile ground for future work into combining more OFDM based wireless technologies. The W2BC can achieve saving in device cost, size, power consumption and implementation complexity when compared to side-by-side implementations for these two technologies.

W2BC: A Proposal for a Converged Baseband Implementation of WiMax and WiFi Transceivers

A recently published paper by Dr Ali Al-Sherbaz in 

International Journal of Information and Network Security  Vol 2, No 1 (2013)

ihsan lami, Ali Al-Sherbaz (2013) W2BC: A Proposal for a Converged Baseband Implementation of WiMax and WiFi Transceivers

International Journal of Information and Network Security (IJINS) 

Vol.2, No.1, February 2013, pp. 426 - 437 

ISSN: 2089-3299

W2BC: A Proposal for a Converged Baseband Implementation of WiMax and WiFi Transceivers

ihsan lami, Ali Al-Sherbaz

Abstract

There have been many attempts to converge wireless teraservers functionality and implementation at various layers. The approach of this work is to explore the similarities of the OFDM signals, as used in WiMax and WiFi, to converge their baseband implementation at the physical layer. The proposed W2BC solution reduces implementation complexity, size, power, and cost, while preserving signal and communication integrity for standalone WiMax and WiFi functionality. This paper reviews the convergence approaches that lead to the proposed W2BC implementation, explain the mathematical derivation, describe the simulation model and discuss the test results for real-world usage scenarios.

Full Text version can be found at: PDF

The Anatomy of a Mobile 'Phone

Coventry Event

The Anatomy of a Mobile 'Phone

Thursday 14 Jun 2012, 18:30 - refreshments from 6:00pm, 

Goldstein Lecture Theatre, 

Coventry University (opposite Coventry Cathedral)

Peter Andersen – IET

Have you ever wondered how your mobile 'phone works? This lecture will explore both the transmission systems, the environment they work in and the electronic devices (chips) that make up their circuit boards. The mysteries of WiFi, Bluetooth, GPS, detecting magnetic north and many other functions will be uncovered and demonstrated. 

To book, please follow this link to the IET website thanks.