Hence, the probability of multiple concurrent secondary transmissions over the i th channel, pMSU, is given by p MSU = ∑ k = 2 ∞ e - ρ SU A c ( ρ SU A c ) k k !
In this article, we propose a MAC protocol called concurrent access MAC (CA-MAC) for CRAHNs capable of concurrent transmissions on multiple channels by different pairs of devices.
Santhapuri et al.[12, 15] proposed an MIM-aware centralized packet scheduling algorithm called Shuffle that supports concurrent transmissions from multiple APs.
To improve channel utilization in high latency environments, we propose a novel approach that exploits the idle waiting time during a 2-way handshake to set up concurrent transmissions from multiple nodes.
Interventions to reduce HIV transmission should incorporate comprehensive risk reduction strategies aimed at decreasing behavioral risks for HIV transmission including reducing multiple concurrent partnerships and promoting consistent condom use.
Previous studies from Tanzania have documented the increase of HIV transmission among those with multiple concurrent partners (6, 8, 10, 11).
Risk factors for sexual transmission of HIV include multiple concurrent sexual partnerships, commercial sex, and inconsistent or non-use of condoms.
Note that the rationale behind using the contention window, even after performing carrier sensing, is to mandate contending users to access the channel only after a further deferral (random backoff) period which would possibly avoid concurrent transmissions (literally, packet collisions) from multiple contending users.
A high prevalence of STIs, early age at first sexual experience, and the culturally accepted practice among some sub-groups to have multiple, concurrent partners are thought to substantially increase HIV transmission risk [ 16].
