Construction of Database in Cognitive Wireless Network Based on Network Situation-Aware
Qi Zhou · Dianzi Ke-ji Daxue xuebao · 2009
How to realize the cognitive capability is a key point to realize the cognitive wireless network.At present the method that combines network situation-aware database with case based reasoning(CBR) is received much attention.The construction of database in cognitive wireless network based on network situation-aware is deeply investigated in unfixed establishment network such as Ad hoc.The combination of NSGA-Ⅱand fuzzy decision is applied to constructing the Database in Cognitive Wireless Network from the aspect of network situation-aware and protocol configuration.Simulation result shows that: when adopting the mechanism of reconfiguration,the average time delay of the network will decrease to 50% above that of worst performance;the ratio of calling success will increase to 100%,and the throughput of the network will increase to 20%.