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In this paper, a decoder based on log-MAP (maximum a-priori) algorithm for distributed turbo codes in relay channel is designed. The structure of the proposed turbo decoder is similar to the standard turbo iterative decoder with two soft-input soft-output (SISO) modules. However, the inputs to the decoder as well as the extrinsic signals between the two SISO modules are differently calculated. The...
In this paper, a simple transmit beamforming scheme over MISO channel in two-way relay networks is proposed. Beam in the proposed scheme is built to maximize sum of the receive power of the two receivers according to their geographic location. The key consideration is to estimate signal direction of arrival (DOA) with the location information supported by localization and tracking instead of using...
In this paper, a new two-step communication protocol combined with MIMO technologies is proposed in this paper which allows improving the system throughput in a cooperative networks. The protocol is termed MINEC (MIMO network coding). A three nodes network with multi-antennas on relay node is taken as an illustrative example of MINEC. In step one of MINEC, two source nodes transmit message simultaneously;...
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