Table 2 Channel state classification according to for transmitter/receiver-cooperated method.
However, in our analysis, it is not true for transmitter-independent method and transmitter/receiver-cooperated method under certain situations.
Considering hidden terminal and exposed node problems, a theoretical analysis on the performance of commonly used energy detection methods, such as ideal method, transmitter-independent method, and transmitter/receiver-cooperated method, is analyzed in terms of detection probability.
In this paper, considering hidden terminal and exposed node problems, we make a theoretical analysis on the performance of commonly used energy detection methods, such as ideal method, transmitter-independent method, and transmitter/receiver-cooperated method, in terms of detection probability.
However, for CSMA/CA systems, the transmitter/receiver-cooperated energy detection method treating as Busy achieves better performance when, and treating as Fake Busy can always achieve better performance.
(iii Using transmitter/receiver-cooperated energy detection methods, it can acquire better performance for TDMA primary systems, ALOHA systems and CSMA systems.
From the theoretical results, we found that it is easy to correctly detection the channel status when primary systems are heavily occupied for ideal energy detection method and tansmitter/receiver-cooperated energy detection method.
In the "equal-proportion" condition, 50% defected, 50% cooperated, and in the "cooperators-rare" condition, 80% of partners defected and 20% cooperated.
In this case, for real system design, we evaluate the performance in terms of detection probability for ideal energy detection method, transmitter-independent energy detection method, and transmitter/receiver-cooperated energy detection method.
If one player defected and the other cooperated, the defector earned $3 and the cooperator nothing.
But there are reports that American Muslim organizations that have in the past cooperated with law enforcement are feeling alienated by increasing pressure, and reconsidering their cooperation.
