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In this paper a new time domain approach which combines time reversal (TR) and downlink spatial beamforming (BF) is proposed that can result in WB/UWB Interference Mitigation (IM). In order to design the TR filter and the desired beams, the Channel State Information (CSI) between the UWB system and the other wideband (WB) victim users is required. This information is obtained using a hybrid Electromagnetic...
In this paper, our aim is to use a Kerdock codebook-based precoding scheme for a multi-user MIMO broadcast channel with channel state information at the base station and limited feedback. The main reason for applying a Kerdock code in place of optimal precoding is to reduce VLSI implementation complexity. The proposed scheme exploits the scheduling and precoding methods with a view to maximizing system...
While cyclic prefix (CP) is no larger than the delay span of wireless channels in an orthogonal frequency division multiplexing (OFDM) system, inter-block interference (IBI) and inter-carrier interference (ICI) will occur and the performance of the system will be deteriorated. If OFDM is designed with long enough CP, the efficiency of OFDM modulation is significantly reduced. To effectively mitigate...
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