UNIZULU Institutional Repository

Handoff management in the mobile wireless Internet

Show simple item record

dc.contributor.author Cwele, Bheki Agrippa
dc.date.accessioned 2009-06-22T12:58:19Z
dc.date.available 2009-06-22T12:58:19Z
dc.date.issued 2006
dc.identifier.uri http://hdl.handle.net/10530/26
dc.description A dissertation submitted in fulfilment of the requirements for the degree of Master of Science in the Department of Computer Science, Faculty of Science and Agriculture at the University of Zululand, South Africa, 2006. en_US
dc.description.abstract The large number ofnodes in wireless networks and the fact that mobility is an important feature of a wireless system has made it a great challenge to sustain ongoing connections during handoff events. Real-time applications (e.g., Voice-Over-IP (VoIP), Video-Ondemand, and streaming) require little or no service disruptions during handoff because of their nature of being mostly delay-sensitive applications. The network must, therefore, offer minimal handoff delays, minimal latency, low call dropping probability; and should also fully be supportive ofspeed variations in mobile nodes during network layer handoff. In our research we developed and simulated a fast network layer (subnet-to-subnet) handoff management scheme, known as Sector Aware handoff(SAH) strategy. SAH uses cell sectors marked into regions. The sectors have non-handoff region, preparation region and handoff execution region. The SAH scheme uses mobile node's real-time mobility parameters over cell sector regions, to provide accurate and early predictions of Network Layer (L3) handovers - thus initiating L3 handoff preparation appropriately early. SAH is proposed to support primarily, real-time applications' handoff requirements and also fast moving mobile nodes (that is, supports speed variation in mobile nodes). As a means of evaluating the performance of the proposed scheme, a simulation was conducted. The experimental simulation results show that SAH performs better in terms of providing low call dropping probability and maximum system utilisation, when compared to the Fast Hierarchical Mobile IPv6 (FHMIPv6) handoffprotocol. en_US
dc.language.iso en en_US
dc.publisher University of Zululand
dc.subject Wireless Internet en_US
dc.subject Mobile computing en_US
dc.subject Wireless communication systems en_US
dc.title Handoff management in the mobile wireless Internet en_US
dc.type Thesis en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search UZSpace


Browse

My Account