Experimental Investigation of Security Gaps when using Punctured LDPC Coding in Coherent Systems up to 64-GBd DP-64QAMIn optical transmission systems, security against eavesdroppers is of increasing importance. Following the concept of physical-layer security, we experimentally quantify the security gap ...
Experimental demonstration of nonbinary LDPC convolutional codes for DP-64QAM/256QAM 来自 ResearchGate 喜欢 0 阅读量: 31 作者:T Koike-Akino,K Sugihara,DS Millar,M Pajovic,P Bayvel 摘要: We show the great potential of nonbinary LDPC convolutional codes (NB-LDPC-CC) with low-latency windowed ...
对于给定的系统,所需要的符号数为2n,这里n就是每个符号的比特数。对于4QAM,也就是QPSK,n=2,有4个符号,每个符号2bit:00,01, 10,11;对于16QAM,n=4,因此有16个符号,每个符号4bit:0000,0001,0010等;对于64QAM,n=6,因此有64个符号,每个符号6bit:000000,000001,000010等。由...
联合团队进一步利用采样率高达260Gsa/s、带宽超过75GHz的是德科技M8199B样机这一目前最高性能的任意波形发生器(AWG),实现了破纪录的260G超高波特率DP-QPSK调制(如图2所示),并演示了100km单模光纤传输。还进一步利用185G波特PCS-64QAM高阶调制格式,实现了1.84 Tb/s可达信息比率(AIR)(如图3所示)。铌酸锂薄膜调制器...
DP-QDQ is a partial-response shaping modulation based on 16QAM, which has been proposed in our previous research paper. In this paper, the power spectral density (PSD) of the DP-QDQ signal is analyzed and compared with DP-16QAM, DP-64QAM, and DP-256QAM signals, and the simulation setup...
预置条件: 7/14/28/56MHz; QPSK/16QAM/32QAM/64QAM/128QAM/256QAM每种组合测试步骤: 价格说明 价格:商品在爱采购的展示标价,具体的成交价格可能因商品参加活动等情况发生变化,也可能随着购买数量不同或所选规格不同而发生变化,如用户与商家线下达成协议,以线下协议的结算价格为准,如用户在爱采购上完成线上购买...
UMTSHSPAPLUS64QAM - Windows 10 hardware dev SoftwareLicensing - Windows 10 hardware dev Storage - Windows 10 hardware dev SystemRestore - Windows 10 hardware dev TerminalServices - Windows 10 hardware dev Intelligence - Windows 10 hardware dev NIDefaultTimeout - Windows 10 hardware dev ConnectionTim...
315MHz则可达800公尺（覆盖面积更差距64倍），再加上Sub 1GHz不需要高传输率，不需要16QAM、64QAM等...
低频的好处是相同发送功率下可获得较远的传送距离,若使用315MHz,与Wi-Fi的2.4GHz相比差距约8倍,Wi-Fi若能达100公尺,315MHz则可达800公尺(覆盖面积更差距64倍),再加上Sub 1GHz不需要高传输率,不需要16QAM、64QAM等复杂调变,采行简单调变(如ASK、FSK等)的结果是传输距离更远,可达数公里。
低频的好处是相同发送功率下可获得较远的传送距离,若使用315MHz,与Wi-Fi的2.4GHz相比差距约8倍,Wi-Fi若能达100公尺,315MHz则可达800公尺(覆盖面积更差距64倍),再加上Sub 1GHz不需要高传输率,不需要16QAM、64QAM等复杂调变,采行简单调变(如ASK、FSK等)的结果是传输距离更远,可达数公里。