Experimental Comparison of Uniform and Probabilistically Shaped PAM-8 for IMDD System at Transmission Rates Beyond 200 Gbit/s 华为,德国慕尼黑 对于PAM8信号,概率整形比常规PAM8灵敏度高出1dB 实验结果表明,在接收灵敏度为70和80GBaud时,每个 pam-
Why won't vsftpd let me log in with a virtual user account?按照wiki的方法创建虚拟用户,却无法登陆.后来发现是.passwd文件创建的问题https://superuser.com/questions/386531/why-wont-vsftpd-let-me-log-in-with-a-virtual-user-accounth