应用光学, 2005, 26 (2): 15, 网络出版: 2006-05-19
OCDMA系统中2-D码和3-D码
2-D and 3-D Codes in OCDMA System
摘要
光码分多址(OCDMA)技术主要应用在接入网中.设计大容量的地址码是该技术实用化的前提.本文在构造2-D素数码的基础上提出了一种用于OCDMA系统的空域/频域/时域3-D地址码.这种码基于素数序列运算.理论分析和数学计算结果表明,3-D码比2-D码的容量更大,系统带宽效率更高,误码率(BER)更低,表现出的性能更好.
Abstract
The technology of OCDMA has many advantages in access network. The design of great capability address codes is the precondition to practicability of this technique. In this paper, on the basis of constructing the 2-D prime code, we put forward a kind of space/frequency/time 3-D code for OCDMA system. It's based on prime sequence arithmetic. The results of the theory analysis and methematic computation show that, comparing with the 2-D code, this 3-D code has larger capacity, lower BER, higher bandwidth efficiency and better performance.
周秀丽, 谭庆贵, 胡渝. OCDMA系统中2-D码和3-D码[J]. 应用光学, 2005, 26(2): 15. 周秀丽, 谭庆贵, 胡渝. 2-D and 3-D Codes in OCDMA System[J]. Journal of Applied Optics, 2005, 26(2): 15.
PDF全文
