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In this paper, the random matrix in the compressive and subspace compressive detectors is optimized based on the particle swarm optimization (PSO). The PSO, which belongs to swarm intelligent theory, is used for the first time to solve the optimization problem of the random projection matrix, leading to an improved version of the conventional compressive and subspace compressive detectors. Simulation...
A parallel interference cancellation detection algorithm based on QR decomposition for VBLAST-OFDM system is proposed in this paper. It makes use of the first detection layer and separates it into several parallel branches. The detected signal is eliminated successively from the received vector of each branch, after that, other signals are detected by using QR factorization, but only the last detected...
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