西安邮电学院学报
西安郵電學院學報
서안유전학원학보
JOURNAL OF XI’AN INSTITUTE OF POSTS AND TELECOMMUNICATIONS
2011年
6期
42-45
,共4页
以太无源光网络%多点控制协议%动态带宽分配%服务质量
以太無源光網絡%多點控製協議%動態帶寬分配%服務質量
이태무원광망락%다점공제협의%동태대관분배%복무질량
Ethernet passive optical network%multi-point control protocol%dynamically bandwidth assignment%quality of service
为了有效利用以太无源光网络中的上行带宽,提高网络的性能,介绍基于授权/请求并适应循环时间的交织轮询算法、基于服务质量的动态带宽分配算法和基于服务质量的预测值算法,并从业务服务质量等方面对它们进行比较研究。通过OPNET对各算法性能进行仿真,结果表明：基于服务质量的预测值算法优于其他两种算法,可提高系统上行带宽利用率。
為瞭有效利用以太無源光網絡中的上行帶寬,提高網絡的性能,介紹基于授權/請求併適應循環時間的交織輪詢算法、基于服務質量的動態帶寬分配算法和基于服務質量的預測值算法,併從業務服務質量等方麵對它們進行比較研究。通過OPNET對各算法性能進行倣真,結果錶明：基于服務質量的預測值算法優于其他兩種算法,可提高繫統上行帶寬利用率。
위료유효이용이태무원광망락중적상행대관,제고망락적성능,개소기우수권/청구병괄응순배시간적교직륜순산법、기우복무질량적동태대관분배산법화기우복무질량적예측치산법,병종업무복무질량등방면대타문진행비교연구。통과OPNET대각산법성능진행방진,결과표명：기우복무질량적예측치산법우우기타량충산법,가제고계통상행대관이용솔。
The Ethernet passive optical network is focused on.To take advantage of its uplink bandwidths,and make full use of its functions,three algorithms are introduced.They are the algorithm about interleaved polling with adaptive cycle time,the algorithm based on the service quality of the dynamic bandwidth allocation and the algorithm based on service quality and prediction.In term of the business service quality,these algorithms are compared with each others.With the help of OPNET,their performances are simulated.The experimental results show that,the algorithm based on service quality and prediction is superior to the others,it can improve uplink bandwidths utilization ratio of the system.
