帮忙翻译！
Our protocol’s ability to mitigate large variations in propagation loss without increasing power results in variable session durations. The results for the session duration are illustrated in Fig. 6. If a fixed combination of modulation and coding is used, then the session durations are constant regardless of the propagation loss. However, in a dynamic spectrum access network, a radio may not be permitted to increase its power by as much as required for a fixed combination, which may require termination of the session if the increase in the propagation loss exceeds the allowed increase in transmitter power. The session durations for our protocol increase if the propagation loss increases, but it is far better to endure an increase in the session duration than to be forced to terminate the session and reschedule it for a later time or in
a different frequency band. Furthermore, the largest values for the session duration shown in Fig. 6 for our protocol would occur only if the excess propagation loss increases by more than 18 dB immediately following the power-adjustment period and remains above 18 dB for the entire session, which is an extremely unlikely event.
|
