CALM M5 is the ISO 21215 standard that incorporates WAVE (WAVE PHY/MAC is IEEE 802.11p standard) and adds the following features: ^[1]

• Global (European) 5 GHz spectrum
• Regulatory domain (border) management
• Directivity and EMC control
• Regional DSRC cooperation
• Multiple radios/interfaces/antenna management through network connection
• GPRS/UMTS/+++ network interconnectivity

See also

• IEEE 802.11p

References

• Status of Project IEEE 802.11p
• Bob Williams, Intelligent Transport Systems Standards, p. 221, Artech House, 2008 ISBN   9781596932913.
• Piyushimita (Vonu) Thakuriah, D. Glenn Geers, Transportation and Information: Trends in Technology and Policy, p. 24, Springer, 2013 ISBN   9781461471295.

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