SDN-based Handover Scheme in Cellular/IEEE 802.11p Hybrid Vehicular Networks

Self Cite

Multipath TCP (MPTCP) is one of the most important extensions to TCP that enables the use of multiple paths in data transmissions for a TCP connection. In MPTCP, the end hosts transmit data across a number of TCP subflows simultaneously on one connection. MPTCP can sufficiently utilize the bandwidth resources to improve the transmission efficiency while providing TCP fairness to other TCP connections. Meanwhile, it also offers resilience due to multipath data transfers. MPTCP attracts tremendous attention from the academic and industry field due to the explosive data growth in recent times and limited network bandwidth for each single available communication interface. The vehicular Internet-of-Things systems, such as cooperative autonomous driving, require reliable high speed data transmission and robustness. MPTCP could be a promising approach to solve these challenges. In this paper, we first conduct a brief survey of existing MPTCP studies and give a brief overview to multipath routing. Then we discuss the significance technical challenges in applying MPTCP for vehicular networks and point out future research directions.

Section: Mptcp In Vehicular Networkmentioning

confidence: 99%

“…On the other hand, technology such as SDN has been utilized in the vehicular networks to improve the performance [ 98 ]. The SDN technology can be also expected to be utilized for MPTCP in vehicular networks.…”

Section: Open Research Problemmentioning

confidence: 99%

A Brief Review of Multipath TCP for Vehicular Networks

Chao

Yoshinaga

et al. 2021

Self Cite

“…In [ 41 ], the transmission scheduling problem in cognitive vehicular environment was discussed. The importance of handling an efficient handover in V2X communications was discussed in [ 42 ]. The radio resource allocation was optimized by deep reinforcement learning in [ 43 ].…”

Section: Blockchain and The Vehicular Internet Of Thingsmentioning

confidence: 99%

Blockchain for Vehicular Internet of Things: Recent Advances and Open Issues

Peng

Gao

et al. 2020

Self Cite

The vehicular Internet of Things (IoT) comprises enabling technologies for a large number of important applications including collaborative autonomous driving and advanced transportation systems. Due to the mobility of vehicles, strict application requirements, and limited communication resources, the conventional centralized control fails to provide sufficient quality of service for connected vehicles, so a decentralized approach is required in the vicinity to satisfy the requirements of delay-sensitive and mission-critical applications. A decentralized system is also more resistant to the single point of failure problem and malicious attacks. Blockchain technology has been attracting great interest due to its capability of achieving a decentralized, transparent, and tamper-resistant system. There are many studies focusing on the use of blockchain in managing data and transactions in vehicular environments. However, the application of blockchain in vehicular environments also faces some technical challenges. In this paper, we first explain the fundamentals of blockchain and vehicular IoT. Then, we conduct a literature review on the existing research efforts of the blockchain for vehicular IoT by discussing the research problems and technical issues. After that, we point out some future research issues considering the characteristics of both blockchain and vehicular IoT.

“…Many WSN monitoring applications require mobility of sensor nodes; therefore, enabling node mobility has become a significant challenge in WSN research [ 4 , 5 , 6 ]. Many wireless standards and technologies do not efficiently support node mobility [ 7 ], impairing their use, especially if WSNs are being used for supporting critical applications with real-time constraints and reliability requirements.…”

Section: Introductionmentioning

confidence: 99%

A New Association Scheme for Handling Node Mobility in Cluster-Tree Wireless Sensor Networks

Casagrande

Moraes

Montez

et al. 2020

Node mobility in multi-hop communication environments is an important feature of Wireless Sensor Network (WSN)-based monitoring systems. It allows nodes to have freedom of movement, without being restricted to a single-hop communication range. In IEEE 802.15.4 WSNs, nodes are only able to transfer data messages after completing a connection with a coordinator through an association mechanism. Within this context, a handover procedure needs to be executed by a mobile node whenever there is a disconnection from a coordinator and the establishment of a connection to another one. Many applications, such as those found in health monitoring systems, strongly need support for node mobility without loss of data during the handover. However, it has been observed that the time required to execute the handover procedure is one of the main reasons why IEEE 802.15.4 cannot fully support mobility. This paper proposes an improvement to this procedure using a set of combined strategies, such as anticipation of both the handover mechanism and the scan phase enhancement. Simulations show that it is possible to reduce latency during the association and re-association processes, making it feasible to develop WSN-based distributed monitoring systems with mobile nodes and stringent time constraints.