Need suggestion in identifying the Wireless Device

[cameo_2007]

I would like to get a solution for this from someone who has experience.

Application:
Collect data from the devices within a range of 150 metres.

Practical Conditions:
No Line of sight.
Eg:- Malls,Office Complexes,Flats

Not preferring the GSM communication


What could be the solution.?

 

[deepuj]

There are many other considerations you have to take before deciding the type and power of the RF link required... other than the distance...

For RF front end:
What is your required data rate (if it is a transducer what is the sampling rate)?

For protocol:
Do you need a secure link?

point to point, multicast or broad cast?

etc.