In wireless communication systems, comparing with traditional radio bands, optical bands has the advantage of hightransmissioncapacity and interference resistance.
在无线通信系统中，光频段与微波以下的射频频段相比，具有传输容量大、不易受到干扰等特殊的优点。
2
The UHVDC power transmission possesses such advantages as hightransmissioncapacity and long working distance, so its position can not be replaced in the electric energy flowing in the future.
特高压直流输电具有送电容量大、送电距离远等优点，在今后的能源流动中具有不可替代的地位。
3
WDM technology is a method for increasing the transmissioncapacity of optical fiber, but the transmission performance in WDM system with high speed and long distance is limited.