Optimal power loading for multiple-input single-output ofdm systems with bit-level interleaving
IEEE Transactions on Wireless Communications
Bit-interleaved coded modulation
IEEE Transactions on Information Theory
On coding for block fading channels
IEEE Transactions on Information Theory
Optimizing power efficiency of OFDM using quantized channel state information
IEEE Journal on Selected Areas in Communications
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Coding with diversity is one of the keys to reliable wireless communication over fading channels. Adaptive modulation can provide additional performance improvement which may be significant when the channel diversity orders are small. In this letter, we propose adaptation algorithms for improving the power efficiency of coded orthogonal frequency division multiplexing (OFDM) on fading channels. We derive simple power-loading and bit-loading algorithms for achieving a fixed throughput and reliability with minimal transmitter power. We illustrate the performance of our schemes using simulations.