On the other hand, power control and data rate allocation are two fundamental techniques for improving the spectral efficiency of wireless multimedia communications.
另一方面,功率控制、数据速度分配也是改善无线多媒体通信频谱利用率的两种基本技术。
3
It has only twohand-operator uses to direct the redundant computer control twists to select the desired operating altitude and moves fore and aft to select the rate of climb.