Various techniques are disclosed to improve redundancy in multi-carrier wireless systems. An example technique is provided that may include commonly encoding a block of data, modulating the encoded block of data across a plurality of carriers, and transmitting via a wireless link the encoded block of data including the plurality of carriers. The modulating may, for example, include modulating a first portion of the encoded block onto a first carrier and modulating a second portion of the encoded block onto a second carrier, wherein encoded data on the first carrier for the block of data may be used for error detection and/or error correction of encoded data on the second carrier for the block of data. Error detection and correction for the encoded block may be performed across the plurality of carriers, which may provide frequency diversity for the block of data.