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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...
For multiple access high data rate UWB systems, the inter-symbol-interference (ISI) and multiple access interference(MAI) will influence the performance of the systems. In this paper, a Rake receiver structure is presented with adjusting the tap weights adaptively using recursive least squares(RLS) algorithm, in which the optimal parameters of RLS algorithm can be determined by part of the channel...
A novel channel estimation scheme is proposed for coherent impulse radio ultra wideband (IR-UWB) system based on IEEE 802.15.4a specification. By extracting and utilizing the information on the frequency synchronization, the proposed channel estimation algorithm improves the receiver performance even under the restricted number of preamble symbols in IEEE 802.15.4a signal format. Simulation results...
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