摘要(英) |
LMDS is the most obtrusive among mini-meter wave propagation techniques. Because it can provide wideband integrated services including two-way voice, video, and data transmission. The asymmetry between downstream and upstream is quite consistent with the normal data flow, particularly for residential applications.
In this article, we first analyze interference in O-CDMA system. The performance of system with and without scrambling code will be compared. Of course, the technique of power control will be applied to reduce inter-cell interference effect. Besides, high rainfall attenuation is a significant challenges associated with deploying systems at Ka band. And with dynamic modulation scheme, we can choose the mode to be modulated according to channel situation. |
參考文獻 |
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