伪随机二进制序列(Pseudo Random Binary Sequence,PRBS)作为测试码型,广泛应用于高速误码率测试中。通过分析并行PRBS生成原理,提出了一种误码率测试中同步的实现方法。由仿真和实际测试结果可知,该方法具有同步速度快、结构简单和消...伪随机二进制序列(Pseudo Random Binary Sequence,PRBS)作为测试码型,广泛应用于高速误码率测试中。通过分析并行PRBS生成原理,提出了一种误码率测试中同步的实现方法。由仿真和实际测试结果可知,该方法具有同步速度快、结构简单和消耗资源少等优点,已成功应用于2G OFDM-PON系统的研发与测试。展开更多
In this paper, we overview the principle of Orthogonal Frequency Division Multiplexing Passive Optical Network （OFDM-PON） systems, with a particular focus on upstream architectures capable of achieving 10Gbit/s colo...In this paper, we overview the principle of Orthogonal Frequency Division Multiplexing Passive Optical Network （OFDM-PON） systems, with a particular focus on upstream architectures capable of achieving 10Gbit/s colorless upstream transmission using Reflective Semiconductor Optical Amplifier （RSOA）. We propose an architecture of RSOA based OFDM-PON which can achieve 10Gbit/s upstream transmission over a single wavelength. A novel Dynamic Subcarrier Assignment （DSA） algorithm is also proposed to support my architecture, namely Service based Polling in Pipeline （SPP） dynamic subcarrier algorithm. A simulation was conducted to study the performance of SPP algorithm. Compared with the traditional dynamic bandwidth allocation algorithms, service based polling meets the quality of in pipeline algorithm service requirements excellently, and adapts orthogonal frequency division multiplexing passive optical network better with higher bandwidth efficiency and lower algorithm complexity.展开更多
文摘伪随机二进制序列(Pseudo Random Binary Sequence,PRBS)作为测试码型,广泛应用于高速误码率测试中。通过分析并行PRBS生成原理,提出了一种误码率测试中同步的实现方法。由仿真和实际测试结果可知,该方法具有同步速度快、结构简单和消耗资源少等优点,已成功应用于2G OFDM-PON系统的研发与测试。
基金supported by NSFC Project No.61372119863 Program No.2011AA01A104Doctoral Scientific Fund Project of the Ministry of Education of China(No.20120005110010)
文摘In this paper, we overview the principle of Orthogonal Frequency Division Multiplexing Passive Optical Network （OFDM-PON） systems, with a particular focus on upstream architectures capable of achieving 10Gbit/s colorless upstream transmission using Reflective Semiconductor Optical Amplifier （RSOA）. We propose an architecture of RSOA based OFDM-PON which can achieve 10Gbit/s upstream transmission over a single wavelength. A novel Dynamic Subcarrier Assignment （DSA） algorithm is also proposed to support my architecture, namely Service based Polling in Pipeline （SPP） dynamic subcarrier algorithm. A simulation was conducted to study the performance of SPP algorithm. Compared with the traditional dynamic bandwidth allocation algorithms, service based polling meets the quality of in pipeline algorithm service requirements excellently, and adapts orthogonal frequency division multiplexing passive optical network better with higher bandwidth efficiency and lower algorithm complexity.
