ADHOC网络学习报告PPT课件

1、1 12 23 3ContentsSimulation based on OPNETIntroduction Main research hot points Introduction Introduction 第1页/共24页 1.Introduction Fig.1 Types of optical access network第2页/共24页1.IntroductionFig.2 Illustration of the PON architecture第3页/共24页 1.Introduction Fig.3 Types of wireless access network第4页/共24

2、页 1.Introduction Fig.4 Basic architecture of FiWi access network第5页/共24页1 12 23 3ContentsSimulation based on OPNETIntroduction Main research hot points Introduction Introduction 第6页/共24页2.Main research hot points Deployment Routing algorithm Energy saving mechanism Survivability第7页/共24页 Routing algo

3、rithm They were all evolved from AODV （Ad hoc On-Dem and Distance Vector Routing ）and DSR（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

4、 Routing，CaDAR） （Risk -and -Delay Aware Routing，RADAR）2.Main research hot points第8页/共24页 Energy saving 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

5、points第9页/共24页 Survivability Network protection mechanism can be divided into link protection and path protection, 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 cla

6、ss, ONU class and wireless router class.2.Main research hot points第10页/共24页Fig.5 Domians affected by different levels of failures in FiWi access network2.Main research hot points第11页/共24页2.Main research hot pointsFig.6 Illustration of feeder fiber protection approach 第12页/共24页2.Main research hot poi

7、ntsFig.7 Illustration of full protection approach第13页/共24页2.Main research hot pointsFig.8 Illustration of PON protection approach based on wireless rerouting第14页/共24页2.Main research hot pointsFig.9 Segment Protection algorithm with Local Connection Availability, SPLCA(Sharing scheme for the allocati

8、on of working wireless link capacity)第15页/共24页2.Main research hot pointsFig.10 Path Protection algorithm with Global Connection Availability, PPGCA(Sharing scheme for the allocation of working wireless link capacity in path protection)第16页/共24页2.Main research hot points3456734363840424446ONU数目后端PON被

9、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, A0.90,0.99LBSP, A0.85,0.99Fig.11 Comparison of occupied bandwidth capacity in the back-end PON between SPLCA and LBSP algorithms with differ

10、ent ONU numberFig.12 Comparison of occupied bandwidth capacity in the front-end WMN between SPLCA and LBSP algorithms with different traffic number 第17页/共24页1 12 23 3ContentsSimulation based on OPNETIntroduction Main research hot points Introduction Introduction 第18页/共24页3.Simulation base on OPNETNode mode and process mode第19页/共24页3.Simulation base on OPNETWireless mesh networkLR-PON (Ring-and-spur topology)第20页/共24页3.Simulation base on OPNETA MANET