TDMA-Based Control Channel Access for IEEE 802.11p in VANETs

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Provided by: Hindawi Publishing
Topic: Networking
Format: PDF
Motivated by an efficient broadcast service in Vehicular Ad hoc NETworks (VANETs), the authors propose a TDMA-based channel access scheme for IEEE 802.11p Control CHannel (CCH). The scheme reduces the rate of transmission collisions and improves the availability of time slots on the control channel by adjusting disjoint sets of time slots to vehicles moving in opposite directions and to the left and right slot frames. Further, the location information of a node is used to allocate the time slot, which efficiently decreases the rate of access collisions.
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