1. There are many kinds of channel coding, such as turbo code, convolutional code, Hamming code and LDPC code. LDPC (low-density parity-check) code has been shown to have excellent performance. 通道编码有涡轮码、迴旋码、汉明码、低密度同位检测码，其中低密度同位检测码已被证明拥有非常好的效能。
2. Among these, DPLC(digital power line carrier)access, Ethernet access, LMDS access, wireless WDM access are explained in detail. 其中，尤其对电力线接入等技术作了详细的介绍，并指出了接入网的发展前景。
3. The zero access generally refers to as the parallel access, and it need not wait for access of other information. 立即存取一般指 并行存取 ，不须要等待别的信息存取后再进行。
4. The zero access generally refers to as the parallel access, and it need not wait for access of other information. 立即存取一般指并行存取，不须要等待别的信息存取后再进行。
5. In this paper plastic optical fiber (POF) access network based on optical code-division multiple access (OCDMA) technique is proposed. 本论文提出了一种基于光码分多址（OCDMA）技术的塑料光纤接入网方案，并对这个方案的相关问题作了研究。
网络释义
fast access memory fast access storage quick access memory quick access storage 快速存取存储器;
fast access memory fast access storage quick access memory quick access storage 快速存取存储器;
fast access memory fast access storage quick access memory quick access storage 快速存取存储器;
MONT code mountain station synoptic code MONT code 高山测云电码;
