You have to provide more details on what wireless communication standard you are going to use. CC1101 is a sub 1GHz RF transceiver. There are others who also have similar ICs.
Are you looking to build the RF module yourself using these ICs or you want a ready module? If you would like to build your own module then CC1101 will be good, also check in Atmel, they too have good ICs.
If you want to use a ready module, then I suggest Digi International's products. They are easy to work with.