Performance Prediction accuracy first of all depends on the accuracy of environment database Prediction accuracy also depends on Nev:the greater Nev,the better the accuracy.Usually Nev=3-4 for outdoor,Nev=2 for indoor prediction are chosen. Unfortunately,CPU time grows more than linearly with Nv Prediction CPU time error 5Nev Prediction error CPU time Performance • Prediction accuracy first of all depends on the accuracy of environment database • Prediction accuracy also depends on Nev : the greater Nev , the better the accuracy. Usually Nev = 3-4 for outdoor, Nev = 2 for indoor prediction are chosen. • Unfortunately, CPU time grows more than linearly with Nev 5