Wireless resistance measurement

What sort of wireless are you using?
I am open for suggestions range is 50cm
I need to read resistance in the range of 100MOhms with digits as : 100.000 +-0.5 Ohms
The size of the transmitter should be as low as it can. I am using 1V to operate the resistor.
data rate should be reading every 0.1sec (if it can be less than that, it will be great)
Accuracy and failure rate are very important.
Budget for this project is less problem.
I need to read only one resistor but may buy 2 or more setups.

Thanks.
Sagi