Exact(6)
For both users, when the data rate is 0.2 bps/Hz, the algorithm with full information has only 0.3 dB gain over SDLA-I and SDLA-II.
These curves show the rate evolution achieved by both users when the users decide to choose one of the four predefined strategies.
For both users, when the data rate is 0.6 bps/Hz, the algorithm with full information has only 0.7 dB gain over SDLA.
Therefore, the full-cooperation scheme can improve the BER performance of both users when the SNR of the users towards the receiver is relatively high so that the fading dominates the performance.
This indicates that user 1 has to sacrifice its performances for the sake of user 2. On the other hand, the full-cooperation scheme is a win-win situation for both users when the SNR is relatively high.
For both users, when the data rate is 0.8 bps/Hz, SDLA-I has about 0.03 dB gain over SDLA-II. Figure 4 Data rates for secondary users under different resource allocation schemes ( u k = ∑ i = 1 N R k i, α=0.2, V=100 ).
Similar(54)
The other lines below the frontiers show what rate will be achieved by both users when they decide to play one of the predefined strategies all the time.
Google search rankings, video view records and Twitter trending topics tell users when the crowd has moved on.
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This app alerts Google Glass users when the International Space Station is viewable in their area.
Prescriptions dispensed during 2004 were used to identify current drug users when the study period started on 1 January 2005.
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