Title :
Implications of Antenna Sharing in Colocated 1XRTT and EV-DO Systems: Downtilt Angle Analysis
Author :
Badra, Renny E. ; Zambrano, Alfonso R.
Author_Institution :
Electron. & Circuits Dept., Univ. Simon Bolivar, Caracas
Abstract :
The impact of antenna downtilt on the forward links of overlayed CDMA2000 1XRTT and EV-DO systems is examined via numerical simulations. A system model for colocated IX / EV-DO networks is proposed and employed to provide a perspective on the issues and trade-off situations derived from using the same cell site antennas and, consequently, the same downtilt angles for the two networks. A set of recommendations regarding the fade margins of both downlink budgets and the optimum antenna downtilt angles as a function of the IX cell load is drawn from the simulations results.
Keywords :
3G mobile communication; antenna radiation patterns; cellular radio; CDMA2000 1XRTT system; EV-DO system; antenna sharing; cell site antenna; downtilt angle analysis; Adaptive arrays; Adaptive systems; Circuits; Consumer electronics; Downlink; Loaded antennas; Multiaccess communication; Numerical simulation; Performance analysis; Radio frequency;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.481
