Head-of-line blocking exists in input queuing used by ATM switching element , which severely affects the throughput , and the cell lo ss is also very large.
ATM交换单元采用的输入排队由于存在队头阻塞严重影响了吞吐率，并且信元丢失率也很大。
2
The power line communication, the ss communication system and the design technique of FPGA have been discussed in this thesis.
论文对电力线通信、扩频通信系统和FPGA设计方法等进行了相关研究。
3
The article adopts the prevalent technique of Spread Spectrum, and designs a kind of Power Line Modem based on the SS chip SC1128.