Name
Abstract | ||
|---|---|---|
IEEE 802.11 is an economical and efficient standard that has been applied to vehicular networks. However, the long handoff latency of the standard handoff scheme for IEEE 802.11 has become an important issue for seamless roaming in vehicular environments, because more handoffs may be triggered due to the higher mobility of vehicles. This paper presents a new and fast location-based handoff scheme particularly designed for vehicular environments. With the position and movement direction of a vehicle and the location information of the surrounding access points (APs), our protocol is able to accurately predict several APs that the vehicle may possibly visit in the future and to assign these APs different priority levels. APs on higher priority levels will be scanned first. A blacklist scheme is also used to exclude those APs that showed no response to the scanning during previous handoffs. Thus, time spent on scanning APs is supposed to be significantly reduced. The simulation results show that the proposed scheme attains not only a lower prediction error rate but also lower link layer handoff latency and that it has a smaller influence on jitter and throughput. Moreover, these results show that the proposed scheme has a smaller total number of handoffs than other handoff schemes. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/TVT.2014.2309677 | Vehicular Technology, IEEE Transactions |
Keywords | Field | DocType |
access protocols,jitter,mobility management (mobile radio),vehicular ad hoc networks,wireless LAN,IEEE 802.11 vehicular networks,access points,blacklist scheme,fast location-based handoff scheme,jitter,link layer handoff latency,media access control layer,prediction error rate,priority levels,throughput,vehicle mobility,vehicle movement direction,vehicle position direction,Handoff,IEEE 802.11,media access control (MAC) layer | IEEE 802.11,Computer science,Computer network,Vehicular ad hoc network,IEEE 802.11r-2008,Handover | Journal |
Volume | Issue | ISSN |
63 | 8 | 0018-9545 |
Citations | PageRank | References |
8 | 0.59 | 12 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Mohammed Almulla | 1 | 147 | 20.60 |
| Yikun Wang | 2 | 8 | 0.59 |
| Azzedine Boukerche | 3 | 4301 | 418.60 |
| Zhenxia Zhang | 4 | 134 | 11.76 |