Principles of Wireless Networks: A Unified Approach
Principles of Wireless Networks: A Unified Approach
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
Fairness and load balancing in wireless LANs using association control
Proceedings of the 10th annual international conference on Mobile computing and networking
Reducing MAC layer handoff latency in IEEE 802.11 wireless LANs
Proceedings of the second international workshop on Mobility management & wireless access protocols
Wireless mesh networks: a survey
Computer Networks and ISDN Systems
Wireless Communications & Mobile Computing - Special Issue: Emerging WLAN Apllications and Technologies
Fast handoff for seamless wireless mesh networks
Proceedings of the 4th international conference on Mobile systems, applications and services
Using smart triggers for improved user performance in 802.11 wireless networks
Proceedings of the 4th international conference on Mobile systems, applications and services
IMC '05 Proceedings of the 5th ACM SIGCOMM conference on Internet Measurement
Supporting vehicular mobility in urban multi-hop wireless networks
Proceedings of the 6th international conference on Mobile systems, applications, and services
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In IEEE 802.11-based wireless networks, the stations (STAs) are associated with the available access points (APs) and communicate through them. In traditional handoff schemes, the STAs get information about the active APs in their neighborhood by scanning the available channels and listening to transmitted beacons. This paper proposes an 802.11k compliant framework for cooperative handoff where the STAs are informed about the active APs by exchanging information with neighboring STAs. Besides, the APs share useful information that can be used by the STAs in a handoff process. In this way, we minimize the delay of the scanning procedure. We evaluate the performance of our mechanisms through OPNET simulations. We demonstrate that our scheme reduces the scanning delay up to 92%. Consequently, our system is more capable in meeting the needs of QoS-sensitive applications.