A new class of collision prevention MAC protocols for wireless ad hoc networks

In this paper, we investigate a new class of collision-prevention MAC protocols, called carrier sense multiple access with collision prevention (CSMA/CP), for wireless ad hoc networks. We proposed a collision-free MAC protocol called BROADEN based on CSMA/CP. To the best of our knowledge, BROADEN is the first distributed MAC protocol that can achieve 100% collision-free transmissions in both the control channel and data channel in multihop ad hoc networks. Furthermore, BROADEN can solve the hidden, exposed, and moving terminal problems at the same time. It also improves the performance of previous MAC protocols in terms of average packet delay and network throughput. Moreover, our protocol effectively supports quality-of-service (QoS) provisioning based on prioritization and reservation.