An empirical analysis of the IEEE 802.11 MAC layer handoff process
ACM SIGCOMM Computer Communication Review
Improving the latency of 802.11 hand-offs using neighbor graphs
Proceedings of the 2nd international conference on Mobile systems, applications, and services
Reducing MAC layer handoff latency in IEEE 802.11 wireless LANs
Proceedings of the second international workshop on Mobility management & wireless access protocols
Effect of background scan on performance of neighbouring channels in 802.11 networks
International Journal of Communication Networks and Distributed Systems
Multimedia ready handoff scheme for 802.11 networks
Mobility '07 Proceedings of the 4th international conference on mobile technology, applications, and systems and the 1st international symposium on Computer human interaction in mobile technology
Proceedings of the 7th International Conference on Mobile and Ubiquitous Multimedia
Performance evaluation of a fast MAC handoff scheme using dynamic adjustment of scanning parameters
Proceedings of the 12th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Adaptive handover method with application-awareness for multimedia streaming service in wireless LAN
ICOIN'09 Proceedings of the 23rd international conference on Information Networking
CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
Adaptive system for 802.11 scanning
INFOCOM'09 Proceedings of the 28th IEEE international conference on Computer Communications Workshops
A general inter-AP handoff model for the express mobile gateway
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
An evaluation of the resource discovery process in IEEE 802.11 networks
MobiOpp '10 Proceedings of the Second International Workshop on Mobile Opportunistic Networking
Design and evaluation of a novel MAC layer handoff protocol for IEEE 802.11 wireless networks
Journal of Systems and Software
An efficient MAC layer Handoff scheme for WiFi-based multichannel wireless mesh networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
HaND: fast handoff with null dwell time for IEEE 802.11 networks
INFOCOM'10 Proceedings of the 29th conference on Information communications
A study of the discovery process in 802.11 networks
ACM SIGMOBILE Mobile Computing and Communications Review
Journal of Parallel and Distributed Computing
Design of a fast handoff scheme for vehicular mesh networks with directional antennas
Proceedings of the first ACM international symposium on Design and analysis of intelligent vehicular networks and applications
A signalling technique for disseminating neighbouring AP channel information to mobile stations
ICDCN'06 Proceedings of the 8th international conference on Distributed Computing and Networking
Optimizing throughput performance of FMIPv6 over legacy 802.11 networks using iterative scanning
Computer Networks: The International Journal of Computer and Telecommunications Networking
Scanless fast handoff technique based on global Path-Cache for WLANs
The Journal of Supercomputing
| Hi-index | 0.00 |
The limited service range of the access points demands mobile wireless stations to handoff frequently between different cells in the IEEE 802.11 infrastructure networks. However, the handoff scheme used in the current 802.11 infrastructure networks is far from graceful. In this paper, we propose a smooth MAC layer handoff scheme and a greedy smooth MAC layer handoff scheme. Our schemes scan channels in a smooth manner so that the handoff can have less impact on upper layer applications. In order to limit the frequency of channel scanning, an adaptive mechanism is used to dynamically adjust the threshold triggering the channel scanning operations. We have implemented our handoff schemes using commodity 802.11 devices and extensive experiments have been conducted to evaluate the performance. The experimental results demonstrate that our schemes reduce packet delay and loss during handoff. Our handoff schemes are implemented in the client side only and do not require changes to access points. Therefore, our schemes can be deployed in the existing 802.11 networks.