A Novel IEEE 802.11p Make Before Break Handover for Connected Car
Ronny Yongho Kim · 2016
In this paper, a novel IEEE 802.11p make before break handover scheme is proposed. IEEE 802.11 based Wireless Local Area Network (WLAN) does not provide handover mechanism because cellular like centralized control is not possible. In order for IEEE 802.11 Station (STA) to communication with Access Point (AP), association procedure is required. Similarly, in order to handover to a new AP, re-association with the new AP is required which causes some delay until the commencement of communication with the new AP. Since IEEE 802.11p STAs are normally vehicles and make connection with other vehicles and Road Side Units (RSUs), association procedure with a communication party can be skipped in IEEE 802.11p. By exploiting simple association procedure and multi-channel operation of IEEE 802.11p, a novel and seamless IEEE 802.11p Make Before Break (MBB) handover scheme is proposed. The proposed scheme utilizes two IEEE 802.11p communication channels for seamless handover. By exploiting the proposed scheme, seamless connected car control is possible.