[Retracted] A Taxonomy and Analysis on Internet of Vehicles: Architectures, Protocols, and Challenges

Table 3

Comparison of IEEE MAC standards for Internet of Vehicles (IoV) communication.

Parameters	IEEE standards
	802.11a	802.11b	802.11g	802.11n	802.11ac	802.11ad	802.11ah	802.11ax
Standard approval date	1999	1999	2003	2009	2013	2016	2017	2021
Maximum data rate	54 Mbps	11 Mbps	54 Mbps	600 Mbps	6.93 Gbps	7 Gbps	347 Mbps	9607.8 Mbps
Modulation technique	OFDM	CCK (DSSS)	CCK, DSSS, OFDM	CCK, DSSS, OFDM	BPSK, QPSK, QAM,	Single carrier and OFDM	MCS	BPSK, QPSK, 16QAM, 64QAM, 256QAM, 1024QAM
RF band in GHz	5	2.4	2.4	2.4/5	5	60	0.9	2.4/5; 6 GHz for Wi-Fi 6E
Width of channel in MHz	20	20	20	20, 40	20, 40, 80, 160	—	1	20, 40, 80