Study on optimization of the optical fiber access network communication

With the frequency bandwidth, low cost, fast speed and many other advantages, Optical fiber communication network is widely used in many directions. But, optical fiber access network switch and terminal equipment can´t adapt itself to the requirements of long distance communication. Once the distance is too long, the light signal intensity mass attenuation, until the network data can´t be transmitted. The traditional solution is to rely on the relay amplification device. The equipment has to compensate the attenuation of signal, to realize the long distance communication, but the compensation process just by judging distance, high energy consumption, the compensation process is not careful, the effect not beautiful. This paper presents a new method of optimal coding optimizing communication process, using optimized coding mechanism of constructing multiple virtual private network, virtual private network replacing hardware equipment, network data are complete and accurate in any a virtual private network, realize long distance transmission of the data in the optical access network. Introduced in the simulation experiment data throughput gain as test standard, to verify the data in each virtual private network and multiple virtual private network transmission of the integrity of the results show that using optimized coding method to build a virtual network, the data in each of the private network and multiple virtual private network can complete the transmission.