Engineering Project Report (B.Tech) IEEE prescribed

1. ABSTRACT
Nowadays all Enterprises, Internet Service Providers, and Mobile Network
Operators are all looking for cost-effective ways to move data ,voice and video
amongst multiple, separate locations at broadband speeds. Fiber optics solutions often
fall short due to up-front costs, recurring leases from telecommunications companies,
and a lack of flexibility to scale with the operating organization. Broadband Wireless
has emerged as a means to fill these gaps and to provide a lower total cost of
ownership than wired solutions, while maintaining or exceeding the reliability and
performance of those technologies. The IEEE 802.11 and IEEE 802.16 family of
standards and its associated industry consortium, Wi-Fi and WiMAX, promises to
deliver high data rates over large areas to a large number of users in the near future.
This exciting addition to current broadband options such as DSL, Cable, and Wi-Fi
promises to rapidly provide broadband access to locations in the world’s rural and
developing areas where broadband is currently unavailable. The last decade has seen
the exponential growth in the development of mobile applications. This has increased
the demand on the wireless communication services. The capability to achieve
wireless access anywhere, anytime, and anyplace has become common expectation
as it provides significant flexibility and freedom in mobility. But to achieve global
mobility in heterogeneous networks for any mobile device requires seamless
connectivity using vertical handoff. Since none of the existing wireless frameworks
provide practical solutions for vertical handoff. End-to-End Vertical Handoff or
Always Best Connected concept proposed in this thesis offers a new concept to
perform vertical handoff between heterogeneous wireless networks. To deliver
network services without interruption, this concept present a novel design to monitor
the network availability, it then picks the best accessible network for application
layer. Since this approach relies only on existing technologies, deployed protocols, our
approach can be easily implemented. In this thesis all the simulation results are
obtained using NS 2 Stimulator and Matlab. The results for different tested scenarios
indicate the effectiveness of the proposed approach. Future research activities will
integrate several wireless technologies that are discussed in the thesis.
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