一种光正交编码的研究

Reseach on an optical orthogonal coding method

为了进一步提高光纤通信系统的容量和传输速率,光CDMA技术成为研究热点。寻找一种具有好的传输特性的正交编码成为解决问题的关键。文章提出了一种正交设计的二维时空编码设计方案,该编码方案具有强的自相关性和弱的互相关性。针对多用户干扰和接受机噪声两种情况,对它在光CDMA网络传输时的特性进行了仿真实验,结果表明该时空编码具有较好的接受效果。

In order to increase the capacity and transmission rate of the optical communication system, CDMA technology is becoming fashionable. Looking for a coding method which has good performance in the property of transmission is the key to solving the problem. We present a space time code in terms of orthogonal design, which has better self-correlation and weak inter-correlation. Aiming at the multi-user and noise in the receiver, we conducted the simulating experiment for the property of CDMA. The result shows that the coding method has good performance of reception.