In recent years, the Internet of Things (IoT) has received significant attention globally by interconnecting every device from a small household object to large industrial equipment through the Internet. Among diverse applications, the Internet of Vehicles (IoV) is that interconnects numerous vehicles to communicate significant information through the IoT enabled network. The revolution in IoV made every vehicle as a smart object that captures, processes, and communicates information among the connected vehicles. Due to modernization, technological advancements have facilitated an explosive growth in the usage of the number of vehicles. Consequently, it leads to severe traffic congestion, increased number of accidents, the rise in pollution, etc. Hence, the IoV plays a prominent role to effectively administer and manage the traffic conditions. Among several IoT communication technologies, Wireless Personal Area Networks (WPAN) is limited to short transmission ranges, whereas Low Power Wide Area Networks (LPWAN) although it has extended coverage but suffers from lower throughput. Despite the popularity of Wireless Local Area Networks (WLAN), it suffers from severe contention in the dense networks. Hence, IEEE 802.11ah is introduced by the IEEE 802 task group to support IoT applications. IEEE 802.11ah operates at sub-1 GHz International Scientific Medicine (ISM) frequency bands. The standard provides an extended coverage up to 1 km, the data rate of 78 Mbps and connectivity to 8192 devices. It provides several enhancements to the Physical (PHY) and Medium Access Control (MAC) layer. The standard reduces the control overhead by implementing Null Data Packet (NDP) MAC frames, short MAC headers, etc. Hierarchical Association Identifiers (AID) is implemented to enhance the scalability. Above all, Restricted Access Window (RAW) mechanism is introduced to reduce the channel contention among the devices. Analyst forecast that there will be two billion number of vehicles by 2035. To support such dense IoV networks, IEEE 802.11ah is a perfect candidate. However, there exist several design issues and challenges when we propose IEEE 802.11ah for IoV. In this chapter, we discuss the various design issues and challenges in detail.


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    Title :

    IEEE 802.11ah for Internet of Vehicles: Design Issues and Challenges


    Additional title:

    Unmanned Syst. Tech.


    Contributors:


    Publication date :

    2020-09-19


    Size :

    21 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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