On the Feasibility of Using 802.11p for Communication of Electronic Toll Collection Systems

Table 5

(i) INVITE messages format	Protocol Version∣Timestamps∣“INVITE”∣RSU ID
(ii) ACCEPT messages format	Protocol Version ∣ Timestamps∣“ACCEPT”∣OBU ID
(iii) SESSION messages format	Protocol Version∣Timestamps∣“SESSION”∣SESSION ID∣RSU ID∣OBU ID
(iv) DATA messages format	Version∣Timestamps∣“DATA”∣SESSION ID∣OBU ID∣Message ID∣RSSI∣Palyload
(v) ACKDATA messages format	Version∣Timestamps∣“DATA”∣SESSION ID∣OBU ID∣Message ID∣ACK ID∣RSSI∣Palyload
(vi) ACK messages format	Version∣Timestamps∣“ACK”∣SESSION ID∣OBU ID∣ACK ID∣RSSI
(vii) SUSPEND messages format	Protocol Version∣Timestamps∣“SUSPEND”∣SESSION ID∣OBU ID
(viii) SIGNAL messages format	Protocol Version∣Timestamps∣“SIGNAL”∣RSU ID
(ix) RSSI messages format	Version∣Timestamps∣“RSSI”∣SESSION ID∣OBU ID∣RSSI
(x) BYE messages format	Protocol Version∣Timestamps∣“BYE”∣SESSION ID∣OBU ID