GroupScan: Group-Based Fast Handoff Scheme for Wireless LAN
| Autor: | Jangkyu Yun, Byunghwa Lee, Kijun Han, Mahnsuk Yoon |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Voice over IP
Computer Networks and Communications Wireless network business.industry Computer science Quality of service ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Real-time computing IEEE 802.11 Handover Wireless lan Link layer Electrical and Electronic Engineering business Software IEEE 802.11r-2008 Computer network |
| Zdroj: | IEICE Transactions on Communications. :2929-2932 |
| ISSN: | 1745-1345 0916-8516 |
| DOI: | 10.1587/transcom.e94.b.2929 |
| Popis: | Handoff is a critical issue for stations in IEEE 802.11-based wireless networks. In order to provide Voice-over IP (VoIP) and real-time streaming applications to stations, a handoff mechanism is needed that can reduce latency and provide seamless communication. However, the IEEE802.11 handoff scheme is not appropriate to supply their quality of service (QoS), because it is based on a full-scanning approach. Full-scanning spends too much time searching for access points (APs). Therefore, various pre-scan handoff protocols such as SyncScan and DeuceScan have been proposed. They scan to find nearby APs before the station loses contact with its current AP, but the pre-scanning overhead is considerable. Our handoff mechanism reduces the delay and overhead associated with the link layer handoff by periodically scanning the channel groups. |
| Databáze: | OpenAIRE |
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