Proceedings ArticleDOI
Proactive approach based fast handoff algorithm for VANETs
Debasis Das,Rajiv Misra +1 more
- pp 1-6
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TLDR
From experimental and simulation results, it is found that the use of AP graphs reduces the handoff latency due to re-association process and that the effectiveness of the approach improves dramatically as user mobility increases.Abstract:
In this paper, we have proposed proactive approach for fast-handoff using Access Point (AP) in Vehicular Ad-hoc Network (VANET) The existing schemes are based on context transfer for fast hand-off, but needs to reduce the latency of hand-off for VANETs Fast hand-off in vehicle scans only the selected AP at any instance of time depending upon the association pattern The Fast Hand-off Algorithm using AP Graph with Multiple Vehicles for VANET improves the re-association latency and context transfer process must be separated from reassociation process From experimental and simulation results, we find that the use of AP graphs reduces the handoff latency due to re-association process and that the effectiveness of the approach improves dramatically as user mobility increases The context transfer process for proactive fashion is used for fast handoff and reducing the context transfer latency of handoffs The Inter-Access Point Protocol (IAPP) protocol is called the context transfer protocolread more
Citations
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Book ChapterDOI
A survey on various handoff methods in mobile ad hoc network environment
TL;DR: Various handoff methods that were proposed by various researchers with an intent to increase positive attributes while negating the rest of the components that do not support in increasing the efficiency of the handoff process are discussed and compared.
Effective Retransmission Reducing Ad hoc On Demand Multipath Distance Vector Routing Protocol for VANET
TL;DR: The Effective Retransmission Reducing Ad hoc On-Demand Multipath Distance Vector (ERRAOMDV) routing protocol is proposed to avoid the retransmissions when path loss by making handoff, which reduces to negligible value as compared to any available protocols.
References
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Journal ArticleDOI
An empirical analysis of the IEEE 802.11 MAC layer handoff process
TL;DR: This paper presents an empirical study of this handoff process at the link layer, with a detailed breakup of the latency into various components, showing that a MAC layer function - probe is the primary contributor to the overall handoff latency.
Proceedings ArticleDOI
SyncScan: practical fast handoff for 802.11 infrastructure networks
I. Ramani,Stefan Savage +1 more
TL;DR: SyncScan is described, a low-cost technique for continuously tracking nearby base stations by synchronizing short listening periods at the client with periodic transmissions from each base station and it is demonstrated that it allows better handoff decisions and over an order of magnitude improvement in handoff delay.
Proceedings ArticleDOI
Improving the latency of 802.11 hand-offs using neighbor graphs
TL;DR: The use of a novel and efficient discovery method using neighbor graphs and non-overlap graphs that reduces the total number of probed channels as well as the total time spent waiting on each channel and reduces the overall probe time significantly.
Proceedings ArticleDOI
Context caching using neighbor graphs for fast handoffs in a wireless network
TL;DR: A novel and efficient data structure, neighbor graphs, is described, which dynamically captures the mobility topology of a wireless network as a means for prepositioning the station's context ensuring that the station’s context always remains one hop ahead.
Proceedings ArticleDOI
Reducing MAC layer handoff latency in IEEE 802.11 wireless LANs
TL;DR: A new handoff procedure is developed which reduces the MAC layer handoff latency, in most cases, to a level where VoIP communication becomes seamless, using a selective scanning algorithm and a caching mechanism.