Recent demand for high rate of information transmission in wireless communication has resulted in... more Recent demand for high rate of information transmission in wireless communication has resulted in multiple-input/multiple output (MIMO) systems which offer high spectral efficiency. Though massive Multi-user MIMO (MU-MIMO) system introduces interference, it produces a considerable increase in capacity by the use of large number of transmit and receive antennas to communicate with multiple users. Precoding of information is a technique, which helps in elimination of inter symbol interference and minimizes the receiver complexity. In this paper, lattice reduction technique combined with the Vector Perturbation (VP) is proposed to provide reduced bit error rate at all signal to noise ratios with no reduction in capacity. Two schemes have been formulated namely lattice reduction aided VPZF and lattice reduction aided VP -MMSE precoders. Its performance is also compared against that of the conventional VP-ZF and VP –MMSE. The simulation results show that the lattice reduction aided Vecto...
Recent demand for high rate of information transmission in wireless communication has resulted in... more Recent demand for high rate of information transmission in wireless communication has resulted in multiple-input/multiple output (MIMO) systems which offer high spectral efficiency. Though massive Multi-user MIMO (MU-MIMO) system introduces interference, it produces a considerable increase in capacity by the use of large number of transmit and receive antennas to communicate with multiple users. Precoding of information is a technique, which helps in elimination of inter symbol interference and minimizes the receiver complexity. In this paper, lattice reduction technique combined with the Vector Perturbation (VP) is proposed to provide reduced bit error rate at all signal to noise ratios with no reduction in capacity. Two schemes have been formulated namely lattice reduction aided VPZF and lattice reduction aided VP -MMSE precoders. Its performance is also compared against that of the conventional VP-ZF and VP –MMSE. The simulation results show that the lattice reduction aided Vecto...
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