We first use one-hop message exchange to build CG at each mobile node.
It then specifies routing rules to disseminate multi-hop message in each of the traffic density scenarios.
This nonetheless, is out of the scope of this paper which is focused on efficient multi-hop message dissemination.
Each vehicle with a queued multi-hop message picks a random integer in the range [ 0,R n ] to calculate the duration of its black burst signal.
As this application is based on fast multi-hop message propagation, including information such as position, direction, and speed, it is crucial for the data exchange system of the vehicular application to be resilient to security attacks.
Vehicles with a queued multi-hop packet suspends transmitting any single-hop message generated during the current multi-hop time slot until the start of the next multi-hop time slot Tmhop[ k+1].
The urban multi-hop broadcast (UMB) protocol [23] partitions a road into small segments and lets the vehicles in the furthest non-empty segment forward the received multi-hop message.
To consider both channel quality and transmission distance in selecting the next relay node, Slavik and Maghoub [22] assign a shorter waiting time to vehicles belonging to a connected dominating set (CDS) and employs acknowledgements for every multi-hop message.
The length of the black burst signal is at least equal to the transmission time of a single-hop message to allow all single-hop messages transmitted before the black burst to complete their transmissions.
Specifically, the proposed multi-hop time slot starts with the transmission of a black burst energy signal (channel jamming signal) [23, 38] of duration T b =U f (0,R n )Tslot+Tsh, where U f (x,y) represents a uniformly distributed random value in the interval [ x,y], R n is an integer, Tslot is the slot time in the IEEE 802.11 standard, and Tsh is the single-hop message transmission time.
A cursory examination of internet hip-hop message boards (this is what we do all day, btw) will reveal that The Pack are taking a controversial stand with their choice of footwear.
