Power is one of the most important criterions in designing any modern system. As technology shrinks, the power dissipated by the links of a Network-on-Chip (NoC) starts to compete with the power dissipated by the other elements of the communication subsystem, namely, the routers and the Network Interfaces (NIs). A set of data encoding decoding schemes aimed at reducing the power dissipated by the links of a NoC is presented here. The proposed schemes are general and transparent with respect to the underlying NoC fabric (i.e., their application does not require any modification of the routers and link architecture).