PFA research paper.
What you need to do ?
1. To improve control channel utilization
2. The proposed method in the paper is HyMAC. They have used switching mechanism to maximum utilize control channel utilization.
3. The paper compared IEEE 802.11p , VeMAC protocols and developed HyMAC protocol
Challenge : If you can develop a technique that can still improve CCH utilization as compare to the above mentioned protocols. That's enough
Read the attached paper