Menghitung Path Loss & Radius Cell

Penjelasan :
HATA PROPAGATION MODEL
Menentukan Path Loss (L50)
a(hm) Dense Urban = 3.2*(LOG(11.75*hm (m)))^2-4.97
a(hm) Urban = (1.1*LOG(f (MHz))-0.7)*hm (m)-(1.56*LOG(f (MHz))-0.8)
L50(du) - (dB) = C1+C2*LOG(f (MHz)-13.82*LOG(hb (m))-a(hm) Dense Urban+(44.9-6.55*LOG(hb (m)))*LOG(r (km))+Cm
L50(u) - (dB) =  C1+C2*LOG(f (MHz)-13.82*LOG(hb (m))-a(hm) Urban+(44.9-6.55*LOG(hb (m)))*LOG(r (km))+Cm
L50(su) - (dB) = L50(u) (dB) - 2*(LOG(f (MHz)/28))^2-5.4
L50(rt) - (dB) = L50(u) (dB) -4.78*(LOG(f (MHz))^2+18.33*LOG(f (MHz))-40.94


Menentukan radius cell ( r )
r(du) - (km) = 10^((L50(du) (dB)-C1-C2*LOG(f (MHz))+13.82*LOG(hb (m))+a(hm) Dense Urban - Cm)/(44.9-6.55*LOG(hb (m))))
r(u) - (km) =  10^((L50(u)  (dB)-C1-C2*LOG(f (MHz))+13.82*LOG(hb (m))+a(hm) Urban /(44.9-6.55*LOG(hb (m))))
r(su) - (km) =  10^((L50(su)  (dB)+2*(LOG(f (MHz)/28))^2+5.4-C1-C2*LOG(f (MHz) +13.82*LOG(hb (m))+a(hm) Urban)/(44.9-6.55*LOG(hb (m))))
r(rt) - (km) = 10^((L50(rt)  (dB) +4.78*(LOG(f (MHz))^2-18.33*LOG(f (MHz)+40.94-C1-C2*(LOG(f (MHz)+13.82*LOG(hb (m))+a(hm) Urban/(44.9-6.55*LOG(hb (m))))

Note : Untuk sistem PCS, parameter menyesuaikan.

COST-231 PROPAGATION MODEL
Menentukan Path Loss (L50)
dhm (m) = hr (m) - hm (m)
Lo (dB) = -10+0.354*O (phi)  untuk 0 <= phi < 35
Lo (dB) = 2.5+0.075*(O (phi) -35) untuk 35 <= phi < 55
Lo (dB) = 4-0.114*(O (phi) -55) untuk 55 <= phi <90
Lbsh (dB) = 18*LOG(1+dhb (m))
Ka = 54-0.8*dhb (m)  untuk r >= 0.5 dan dhb <= 0
Ka = 54-1.6*dhb (m) * r (km)  untuk r < 0.5 dandhb <= 0
Kd = 18-15*(dhb (m) / Lbsh (dB))  untuk dhb <= 0
Kf = 4+0.7*(f (MHz)/925-1)  untuk urban dan suburban
Kf = -4+1.5*(f (MHz)/925-1)   untuk dense urban
Lf (dB) = 32.4+20*LOG(r (km))+20*LOG(f (MHz)
Lrts (dB) = -16.9-10*LOG(W (m))+10*LOG(f (MHz))+20*LOG(dhm (m))+Lo (dB) untuk 0 <= phi < 35 (note: nilai Lo (dB) tergantung besarnya phi)
Lms - dB = Lbsh (dB)+Ka+Kd*LOG(r (km))+Kf*LOG(f (MHz))-9*LOG(b (m)) untuk dhb > 0
(note: nilai Ka & Kd tergantung besarnya dhb & nilai Kf tergantung daerahnya urban,suburban atau dense urban)
L50 - dB = Lf (dB)+Lrts (dB)+Lms (u, du & su) - dB

Menentukan radius cell ( r )
r (u&su) - meter =10^((L50 (u & su)dB-32.4-20*LOG(f (MHz))+16.9+10*LOG(W (m))-10*LOG(f (MHz))-20*LOG(dhm (m))-Lo (dB)-Lbsh (dB)-Ka-Kd*LOG(f (MHz))+9*LOG(b (m)))/(20+Kd))

r (du) - meter = 10^((L50 (du)dB-32.4-20*LOG(f (MHz))+16.9+10*LOG(W (m))-10*LOG(f (MHz))-20*LOG(dhm (m))-Lo (dB)-Lbsh (dB)-Ka-Kf*LOG(f (MHz))+9*LOG(b (m)))/(20+Kd))