Make sure you check with RCI regarding their smoking policy. I'm not sure about the Independence, but generally speaking, if you are in a balcony stateroom, you can only smoke on your balcony with the doors closed, and on other designated smoking areas of the ship, whether it's a smoking lounge, etc. I haven't been on the Independence, so I don't know where their smoking areas are.
Under no circumstances is smoking allowed in any stateroom, except on the balcony.
2007 - Majesty of the Seas (Bahamas)
2009 - Enchantment of the Seas (Western Caribbean)
2010 - Freedom of the Seas (Western Caribbean)
2013 - Golden Princess (Alaska, roundtrip from Seattle)