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The design of low-complexity soft-input soft-output (SISO) linear equalizer (LE) for turbo equalization can be classified into two categories: the Cat-I assuming random a priori soft input (from the decoder) and the Cat-II treating the a priori input deterministic. There is a lack of systematic comparison between the two categories. In this letter, a comprehensive comparison between the two categories...
A sequence-based block decision feedback equalizer (BDFE) with soft feedback is presented for turbo equalization. The proposed algorithm can be used in the channel equalization for calculation of the a posteriori probability (APP) by collecting information of the entire block as in maximum a-posteriori probability (MAP) algorithm. The sequence-based detection is made possible by combining both soft...
For evolution of the GSM/EDGE radio access network (RAN), the use of higher order modulation like 16- and 32-ary quadrature amplitude modulation (QAM) is considered in standardization for increased peak data rates and reduced transmission delays. In this paper, an optimized receiver design for different packet data transmission schemes is proposed. Turbo coding and turbo equalization is discussed...
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