Network Model and Definition ll/ll 上洋充通大学 SHANGHAI JIAO TONG UNIVERSITY ▣Network Model: Extended networks: n nodes randomly distributed in a network with size n. Static >Physical channel model Pl(;x;) SNR,+∑rP4(x,+2P】 PI(xx) SINR.N+∑nP)+2x,） where I(xx)=min(1,d) Definition of secrecy capacity Ri=Ry-Re log2 (1+SINR )-log2 (1+SINRie) where SINR=maxce:SINR Asymptotic Analysis on Secrecy Capacity in Large-Scale Wireless Networks 99 Network Model and Definition – II/II ❑ Network Model: ➢ Extended networks: n nodes randomly distributed in a network with size n. ➢ Static ➢ Physical channel model where ➢ Definition of secrecy capacity 0 \{ } \{ } ( , ) ( , ) ( , ) t i j ij t k j r k j k T i k R i Pl x x SINR N Pl x x Pl x x   = + +   0 \{ } ( , ) ( , ) ( , ) t i e ie t k e r k e k T i k R Pl x x SINR N Pl x x Pl x x   = + +   ( , ) min(1, ) i j ij l x x d − = 2 2 log (1 ) log (1 ) s R R R SINR SINR ij ij ie ij ie = − = + − + max ie e ie SINR SINR =  where Asymptotic Analysis on Secrecy Capacity in Large-Scale Wireless Networks