  Full-rate space-time block codes (STBCs) achieve high spectral-efficiency by
transmitting linear combinations of information symbols through every transmit
antenna. However, the coefficients used for the linear combinations, if not
chosen carefully, results in ({\em i}) large number of processor bits for the
encoder and ({\em ii}) high peak-to-average power ratio (PAPR) values. In this
work, we propose a new class of full-rate STBCs called Integer STBCs (ICs) for
multiple-input multiple-output (MIMO) fading channels. A unique property of ICs
is the presence of integer coefficients in the code structure which enables
reduced numbers of processor bits for the encoder and lower PAPR values. We
show that the reduction in the number of processor bits is significant for
small MIMO channels, while the reduction in the PAPR is significant for large
MIMO channels. We also highlight the advantages of the proposed codes in
comparison with the well known full-rate algebraic STBCs.
