  Dedicated short-range communications (DSRC) attracts popularity in the
military applications thanks to its easiness in establishment, no need for paid
subscription, and wide compatibility with any other IEEE 802.11 standards. The
main challenge in DSRC is congestion due to existence of only 7 channels, which
may not be enough to accommodate the increased number of transmitters expected
to be deployed in the near future. Recently, there are a myriad of urban
operation scenarios for the military including urban warfare and humanitarian
assistance/disaster relief (HA/DR). The key challenge is that the
communications among the military vehicles can be interfered by civilian users.
It is the desire that the messages transmitted by the military vehicles hold a
higher significance so that they can avoid the interference coming from the
civilian users, which is not supported in the current version of DSRC. As a
remedy, this paper proposes a protocol that prioritizes the military DSRC users
while muffling the civilian DSRC users. Our results show that this
prioritization method achieves higher communications performances for the
military DSRC users.
