Tapering remains a key topic of debate among investors as year-end approaches and Janet Yellen prepares to take over as Federal Reserve chairman when Ben Bernanke's term expires at the end of January.
While opinions over when the Fed will taper differ, charts suggest that any near-term taper or no-taper decision will do little to fundamentally change the trend in the U.S. dollar index.
(Read more: The dollar bulls are back with a bang)
The U.S. dollar Index chart is defined by two features. The first is a combination of three support and resistance levels, which first act as support before reversing their polarity to act as resistance.
The second is the long-term uptrend line; this was broken on the downside in October but the recent rally has given new life to this trend line acting as a support feature.