Handover performance for IEEE 802.11 wireless local area network | |
| Author | Prasit Gebsaap |
| Call Number | AIT Thesis no.TC-98-13 |
| Subject(s) | Wireless communication systems Local area networks (Computer networks) |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies |
| Publisher | Asian Institute of Technology |
| Abstract | Handover protocol is the potential area of interest for WLAN, since it directly effects the guaranteed QoS such as average throughput and delay. However, the IEEE 802.11 WLAN standard does not include how the handover should be handled. The multicast-based handover protocol has been proposed to enable the fast handover. As the multicast connection requires a larger buffer size at the base station, in this thesis, a new handover protocol was proposed. The performance of the new handover protocol as well as the multicast-based handover protocol is studied for the IEEE 802.11 wireless picocells interconnected by Ethernet network. The simulation is done by tracing the communication between a source and its receiver. The end-to-end throughput and inter-packet time measured at the receiver are used in performance comparison of the handover protocols. From the simulation results, we found that both multicast and modified multicastbased handover protocols can enable the fast handover. The gain of these protocols is visible under heavy load only and gets smaller as the handover latency increases. However, the modified multicast-based handover protocol does not reduce the packet loss during transition. The lower throughput obtained in exchange of less required buffer size and no duplication packet when compared to the multicast-based handover protocol. We have shown by calculation that the required buffer size for multicast-based handover protocol is higher that those of modified multicast-based handover protocol by product of maximum allowed receivers and the number of neighboring cells. |
| Year | 1998 |
| Type | Thesis |
| School | School of Advanced Technologies |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Telecommunications (TC) |
| Chairperson(s) | Erke, Tapio; |
| Examination Committee(s) | Ahmed, Kazi Mohiuddin;Makelainen, Kimmo; |
| Scholarship Donor(s) | Jasmine Telecom Systems Co., Ltd. Bangkok, Thailand; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1998 |