TY - GEN
T1 - A TDMA-Based MAC Protocol for Efficient Delivery of Emergency Messages in VANETs
AU - Latif, Muhammad Bilal
AU - Liu, Feng
AU - Liu, Kai
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/10/28
Y1 - 2020/10/28
N2 - It is very necessary to timely report critical events in vehicular ad hoc networks (VANETs) in order to ensure road safety and avoid catastrophic situation. To report critical events within a minimum possible latency, we present a time division multiple access (TDMA) based medium access control (MAC) protocol for efficient delivery of emergency messages (EDEM-TMAC) in VANETs. Instead of relying only on periodic messages, which is commonly adopted by the existing TDMA-based MAC protocols for VANETs, we intelligently employ event-driven messages to optimize efficiency. Access collision problem between event-driven messages and association request messages is resolved by dynamically partitioning the free channel. Simulation results show that compared with the existing MAC protocol, EDEM-TMAC can reduce the delay of reporting critical events up to 99%, and remain enough high packet delivery ratio of emergency messages even at high node density.
AB - It is very necessary to timely report critical events in vehicular ad hoc networks (VANETs) in order to ensure road safety and avoid catastrophic situation. To report critical events within a minimum possible latency, we present a time division multiple access (TDMA) based medium access control (MAC) protocol for efficient delivery of emergency messages (EDEM-TMAC) in VANETs. Instead of relying only on periodic messages, which is commonly adopted by the existing TDMA-based MAC protocols for VANETs, we intelligently employ event-driven messages to optimize efficiency. Access collision problem between event-driven messages and association request messages is resolved by dynamically partitioning the free channel. Simulation results show that compared with the existing MAC protocol, EDEM-TMAC can reduce the delay of reporting critical events up to 99%, and remain enough high packet delivery ratio of emergency messages even at high node density.
KW - medium access control
KW - time division multiple access
KW - vehicular ad hoc network
UR - https://www.scopus.com/pages/publications/85099589512
U2 - 10.1109/ICCT50939.2020.9295736
DO - 10.1109/ICCT50939.2020.9295736
M3 - 会议稿件
AN - SCOPUS:85099589512
T3 - International Conference on Communication Technology Proceedings, ICCT
SP - 770
EP - 775
BT - 2020 IEEE 20th International Conference on Communication Technology, ICCT 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 20th IEEE International Conference on Communication Technology, ICCT 2020
Y2 - 28 October 2020 through 31 October 2020
ER -