Orthogonal Multi-Carrier Modulation(OMCM) is adopted to overcome the frequency selectivity and time variation of low-voltage power line channel.
为克服低压电力线信道的频率选择性和时变性,系统采用正交多载波方式传输信息。
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Next, the system structure of OFDM and multi-carrier system are discussed, followed by the pilot based channel estimation for the multi-carrier CDMA systems.
Additionally, another advantage of software radio is that it can process multi-carrier, decrease the RF channel, lessen the devices 'solidity, and save the its cost.