# Review of V2X-IoT Standards and Frameworks for ITS Applications
## 3 Commercial V2X Products
### Commercial V2X Chipsets  
Following the review of commercially available OBU and RSU platforms on the market, major manufacturers of V2X chipsets are AutoTalks, NXP Semiconductors, and Qualcomm Atheros. For example, the Commsignia V2X Evaluation Kit, Unex OBU-201 and Unex RSU-201 V2X solutions discussed above use AutoTalks V2X chipsets: PLUTON (ATK3100), SECTON and CRATON (ATK4100) [79]. PLUTON is a V2X RF transceiver for the IEEE 802.11p standard with a carrier frequency range from 5.18 GHz to 5.93 GHz. SECTION is a chip designed to implement data security features. Meanwhile, CRATON is a V2X communication processor that processes data from the PLUTON transceiver. Additionally, AutoTalks offers V2X solutions for their latest products, PLUTON2 (ATK3200) and CRATON2 chips. PLUTON2 is a low-power, multi-standard RF transceiver capable of working with both IEEE 802.11p and IEEE 802.11a/b/g/n/ac communication standards. Meanwhile, CRATON2 is a digital communication processor with an integrated V2X hardware security module (eHSM) and a dual-core ARM Cortex A7 processor for middleware and applications. Furthermore, CRATON2 can support IEEE 802.11a/b/g/n/ac standards for external Wi-Fi services. The manufacturer does not provide more detailed specifications for these chips. Cohda Wireless MK5 OBU and Cohda Wireless MK5 RSUs discussed above-use U-blox THEO-P1 modules with NXP Semiconductors chipsets [80]: TEF5100 is a dual radio multi-band RF transceiver for the IEEE 802.11p standard, but is compliant with Japan's (760 MHz), US and European (5.9 GHz) V2X standards; SAF5100--software-defined radio processor; SXF1800--for data security implementation functions. NXP Semiconductors also offers the DSRC modem SAF5400, which combines transceiver, data security and digital signal processing functions into one system. LocoMate OBU, LocoMate RSU and LocoMate ME products use Qualcomm's Atheros AR5414 chipset [81], consisting of a dual-band 2.4/5 GHz RF transceiver and a MAC/Baseband communication processor [82]. This chip is also often used in a variety of scientific works that develop and analyze various V2X solutions [83; 84; 85]. There are also various chips on the market which, according to their manufacturers, can be used to create various V2X systems. Examples of such manufacturers and their products could be Renesas Electronics (R-Car W2R (R7S720004)), Marvell (88W8987 XA), Redpine Signals (WaveCombo module) and Asahi Kasei Microdevices Corporation (AK1553). The technical specifications of the chips provided by these manufacturers are not very detailed, so we will briefly review only their main features. Company Renesas Electronics produced R-Car W2R (R7S720004) is designed exclusively for IEEE 802.11p standard, and integrates RF transceiver and MAC/Baseband communication processor [86]. Marvell's 88W8987 xA chip family has an integrated IEEE 802.11 ac (wave2)/IEEE 802.11p transceiver and Bluetooth-5 specifically designed to support the speed, reliability, and quality requirements for IEEE 1609.x wireless access in vehicular environments and DSRC systems [87]. The RF transceiver has two 2.4 GHz and 5 GHz bands. These family chips also integrate WLAN/MAC/Baseband and Bluetooth-Baseband communication processors. WaveCombo Module is manufactured by Redpine Signals for many IEEE 802.11 standards, including IEEE 802.11p and IEEE 802.154/ZigBee [88]. This module includes an RS8111 chip--a dual-band (2.4/5 GHz) RF transceiver, and a RS9113--MAC Baseband communication processor. Another interesting product is the Japanese company's Asahi Kasei Microdevices Corporation 5.9 GHz RF transceiver AK1553. This transceiver is compliant with the Arib STD-T75 standard and is designed for ETC2.0 systems [89]. This transceiver requires an external MAC/Baseband communication processor. For virtually all of the basic ITS standards, DSRC and C-V2X systems discussed in the previous section, software defined RF transceivers could be suitable.