John H. Lodge

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Demodulation using the symbol-by-symbol maximum a posteriori probability (MAP) algorithm is presented. The algorithm is derived for the case of continuous phase modulation (CPM) signals transmitted over Rayleigh flat-fading channels, and a corresponding receiver structure is specified. It is shown that the MAP algorithm requires computing, for each trellis(More)
Conventional digital modulation schemes provide poor performance over moderately and severely fading channels without the use of coding. The drawback of applying recently developed trellis coded modulation schemes to such channels is that they require coherent detection to achieve their full potential. This paper describes TCMP, a novel modulation strategy(More)
In this paper, we address the problem of designing multirate codes for a multiple-input and multiple-output (MIMO) system by restricting the receiver to be a successive decoding and interference cancellation type, when each of the antennas is encoded independently. Furthermore, it is assumed that the receiver knows the instantaneous fading channel states(More)