Exact(39)
To obtain node-dependent slot access probabilities, we take the node-independent access probabilities and modify them by a metric that quantifies a node's capabilities.
This is because these two users start from equal initial access probabilities and have equal step sizes for increasing or decreasing their access probabilities over time.
In the paper at hand, we determine node access probabilities for each slot.
To improve the energy efficiency, our proposed schemes benefit from adaptive access probabilities at the users.
Under the proposed distributed implementation, channel access probabilities are updated as (17).
This CCC used PU channel access probabilities when selecting the hopping pattern in the control phase.
Similar(21)
b Simplified application profile using an access probability.
For this, if the user transmitted in the previous time slot, it decreases its current access probability and increases the access probability otherwise.
Figure 8 Probability of successful transmission per SU vs. SU channel access probability for five SUs. Figure 9 Probability of successful transmission per SU vs. SU channel access probability for ten SUs. Figure 10 Probability of collision among SUs vs. SU channel access probability for five SUs. Figure 11 Probability of collision among SUs vs. SU channel access probability for ten SUs.
Each user may have a transmission in a frame with probability p, called the access probability.
More specifically, we propose mechanisms to adaptively control the access probability at the users.
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