通过研究OFDMA—PON的媒质接入控制协议,提出了一种针对OFDMA-PON的媒质接入控制协议,并提出了一种基于流量预测的动态带宽分配算法。通过对授权时间内的业务流量进行预测,更加实时反映各个ONU的带宽需求。仿真验证了提出的动态带宽分配算法可以提高OFDMA-PON在高网络负载时包延时方面的性能。
Media access control protocol for OFDMA-PON is discussed in this paper. A media access control protocol that suitable for OFDMA-PON is proposed and dynamic allocation algorithm is proposed based on traffic prediction. Through traffic prediction within the authorized time, it can reflect more real-time band-width requirements of each ONU. Simulation results show that the proposed dynamic bandwidth algorithm can improve the performance of time delay for OFDMA-PON on the high network load.