TY - GEN
T1 - The Impact of Routing Protocols on the Performance of TCP in VANETs
AU - Ahmed, Abdelkader Ralem
AU - Ould-Khaoua, Mohamed
AU - Meribout, Mahmoud
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - Due to its implementation maturity, TCP is regarded as the de facto reliable transport protocol for Vehicular Ad Hoc Networks (VANETs). However, assumptions made at TCP's inception reflected characteristics of the prevalent and reliable infrastructure of wired networks where congestion is the main cause of packet loss. In Contrast, VANETs are characterized by high vehicles' velocities, this can give rise to frequent network disconnections, resulting in packet loss which is not caused by congestion. Nonetheless, TCP still interprets such packet loss as a sign of congestion, and consequently reduces its sending rate unnecessarily, leading to network performance degradation. This paper investigates using simulations the intricate interaction between a typical representative TCP variant namely TCP NewReno and three popular routing protocols namely AODV, DSR and OLSR over a platoon of vehicles on a highway in scenarios involving consistent and frequent route failures. Our study aims to shed some insight into the behaviour of TCP and routing protocols, and provides a clear assessment of system performance in such constantly occurring route breakages. Our simulation results reveal that the detrimental performance effects of the consecutive RTOs of TCP are more pronounced for OLSR, and to a lesser extent for AODV. Our results also indicate that DSR is the most immune to such effects in most considered scenarios.
AB - Due to its implementation maturity, TCP is regarded as the de facto reliable transport protocol for Vehicular Ad Hoc Networks (VANETs). However, assumptions made at TCP's inception reflected characteristics of the prevalent and reliable infrastructure of wired networks where congestion is the main cause of packet loss. In Contrast, VANETs are characterized by high vehicles' velocities, this can give rise to frequent network disconnections, resulting in packet loss which is not caused by congestion. Nonetheless, TCP still interprets such packet loss as a sign of congestion, and consequently reduces its sending rate unnecessarily, leading to network performance degradation. This paper investigates using simulations the intricate interaction between a typical representative TCP variant namely TCP NewReno and three popular routing protocols namely AODV, DSR and OLSR over a platoon of vehicles on a highway in scenarios involving consistent and frequent route failures. Our study aims to shed some insight into the behaviour of TCP and routing protocols, and provides a clear assessment of system performance in such constantly occurring route breakages. Our simulation results reveal that the detrimental performance effects of the consecutive RTOs of TCP are more pronounced for OLSR, and to a lesser extent for AODV. Our results also indicate that DSR is the most immune to such effects in most considered scenarios.
KW - AODV
KW - DSR
KW - OLSR
KW - Simulation
KW - TCP NewReno
KW - VANETs
UR - http://www.scopus.com/inward/record.url?scp=85127652290&partnerID=8YFLogxK
U2 - 10.1109/IUCC-CIT-DSCI-SmartCNS55181.2021.00022
DO - 10.1109/IUCC-CIT-DSCI-SmartCNS55181.2021.00022
M3 - Conference contribution
AN - SCOPUS:85127652290
T3 - Proceedings - 2021 20th International Conference on Ubiquitous Computing and Communications, 2021 20th International Conference on Computer and Information Technology, 2021 4th International Conference on Data Science and Computational Intelligence and 2021 11th International Conference on Smart Computing, Networking, and Services, IUCC/CIT/DSCI/SmartCNS 2021
SP - 46
EP - 53
BT - Proceedings - 2021 20th International Conference on Ubiquitous Computing and Communications, 2021 20th International Conference on Computer and Information Technology, 2021 4th International Conference on Data Science and Computational Intelligence and 2021 11th International Conference on Smart Computing, Networking, and Services, IUCC/CIT/DSCI/SmartCNS 2021
A2 - Hu, Jia
A2 - Hao, Fei
A2 - Wang, Haozhe
A2 - Wang, Miaoqiong
A2 - Zhang, Xu
A2 - Zhao, Zhiwei
A2 - Wang, Zi
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 20th International Conference on Ubiquitous Computing and Communications, 20th International Conference on Computer and Information Technology, 4th International Conference on Data Science and Computational Intelligence and 11th International Conference on Smart Computing, Networking, and Services, IUCC/CIT/DSCI/SmartCNS 2021
Y2 - 20 December 2021 through 22 December 2021
ER -