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In this paper, we evaluate the performance of the next generation standard IEEE 802.11ac wireless local area network (WLAN) system. IEEE 802.11 for the first time will employ downlink multi-user multi-input multi-output (MU-MIMO) technology. Precoding techniques greatly influences the performance of MU-MIMO transmission. We measure these improvements when realistic channel conditions are applied....
Recently Multi User MIMO has been becoming an interesting topic in wireless communication system. Vector Perturbation can achieve near capacity, but it has high complexity which makes it is difficult to be implemented in the hardware. In this paper we propose an algorithm to reduce the complexity of the Vector Perturbation with negligible decrease in performance.
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