摘要
数据业务和话音业务是未来网络中两个重要业务。作为下一代宽带接入的有效解决方案,以太网无源光网络(EPON)为用户提供了业务接口。对EPON中的上行带宽分配算法进行了分析研究,并提出一种基于动态最大传输窗口DMTW的EPON上行带宽分配算法。在本算法中根据业务和用户的优先级动态调整最大的传输窗口,合理分配上行带宽的资源,提高信道利用率和QoS,降低了传输时延。最后通过软件进行仿真,验证了算法的有效性。
In the foreseen future, data services and voice services are two important businesses. As an efficient scheme for next generation broadband access, Ethernet-PON provided an access to the user. In the paper, the band allocation algorithm of uplink in EPON was analyzed. Then DMTW-based（Dynamic Maximum Transmission Window）assignment algorithm of u- plink bandwidth was presented. The Maximum Transmission Window was adapted automatically according to QoS and user priority. The resource of uplink was efficiently assigned. The utilization of channel together with QoS was increased, and the transmission deley was reduced. Simulation verifies the efficiency of the algorithm.
出处
《电子设计工程》
2010年第7期37-40,共4页
Electronic Design Engineering
