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Iterative processing for linear matrix channels, aka turbo equalization, turbo demodulation, or turbo code-division multiple access (CDMA), has traditionally been addressed as the concatenation of conventional error control codes with the linear (matrix) channel. However, in several situations, such as CDMA, multiple-input-multiple-output (MIMO) channels, orthogonal frequency-division multiplexing...
Modulation with correlated signal functions is considered. While it is well-known that for low spectral efficiencies linear separation via minimum mean-square error (mmse) filtering provides close to optimal performance, linear approaches fail as higher spectral utilization is desired. The alternatives of approximations to maximum-likelihood decoders, such as sphere decoding quickly become practically...
Iterative processing for linear matrix channels, aka turbo equalization, turbo demodulation, or turbo CDMA, has traditionally been studied as the concatenation of conventional error control codes with the linear (matrix) channel. However, in several situations, such as CDMA, multiple-input multiple- output channels, OFDM, and intersymbol-interference channels, the channel itself either contains inherent...
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