ADHOC网络学习报告

1、introduction of fiber-wireless access network 1 12 23 3contentssimulation based on opnetintroduction main research hot points introduction introduction 1.introduction oan (optical access network)pon (passive optical network)aon (active optical network)tdm-ponwdm-pontdm/wdm-ponaponepongponaponepongpo

2、naponeponfig.1 types of optical access network1.introductionfig.2 illustration of the pon architecture 1.introduction wan (wireless access network)3g、4gblue toothzigbeewifiwimaxblue toothzigbeewifiwimaxfig.3 types of wireless access network 1.introduction fig.4 basic architecture of fiwi access netw

3、ork1 12 23 3contentssimulation based on opnetintroduction main research hot points introduction introduction 2.main research hot pointsdeployment routing algorithmenergy saving mechanism survivabilityrouting algorithm they were all evolved from aodv （ad hoc on-dem and distance vector routing ）and ds

4、r（dynamic source routing） （minimum hop routing algorithm，mhra） （shortest path routing algorithms，spra） （predictive throughput routing algorithm，ptra） （delay-aware routing algorithm，dara） （capacity and delay aware routing，cadar） （risk -and -delay aware routing，radar）2.main research hot pointsenergy s

5、aving mechanism the access network consumes 70% energy of all network; onus consume 60%-80% energy of pon. the typical technology is onu sleep-mode and energy-aware routing algorithm.2.main research hot pointssurvivability network protection mechanism can be divided into link protection and path pro

6、tection, in addition, there is a segment protection between these two kinds of protection mechanism. according to the arrange of fault influence, there are three types of network fault : olt class, onu class and wireless router class.2.main research hot pointsfig.5 domians affected by different leve

7、ls of failures in fiwi access network2.main research hot points2.main research hot pointsfig.6 illustration of feeder fiber protection approach 2.main research hot pointsfig.7 illustration of full protection approach2.main research hot pointsfig.8 illustration of pon protection approach based on wir

8、eless rerouting2.main research hot pointsfig.9 segment protection algorithm with local connection availability, splca(sharing scheme for the allocation of working wireless link capacity)2.main research hot pointsfig.10 path protection algorithm with global connection availability, ppgca(sharing sche

9、me for the allocation of working wireless link capacity in path protection)2.main research hot points3456734363840424446onu数目后端pon被占用带宽容量 splca, a0.90,0.99splca, a0.85,0.99lbsp, a0.90,0.99lbsp, a0.85,0.99102030405020406080100120140160业务数目前端wmn被占用带宽容量 splca, a0.90,0.99splca, a0.85,0.99lbsp, a0.90,0.9

10、9lbsp, a0.85,0.99fig.11 comparison of occupied bandwidth capacity in the back-end pon between splca and lbsp algorithms with different onu numberfig.12 comparison of occupied bandwidth capacity in the front-end wmn between splca and lbsp algorithms with different traffic number 1 12 23 3contentssimulation based on opnetintroduction main research hot points introduction introduction 3.simulation base on opnetnode mode and process mode3.simulation base on opnetwireless mesh networklr-pon (ring-and-s