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Block diagonalization (BD) is a linear preceding technique for the multi-user MIMO-OFDM systems that involves transmission of multiple data streams to each receiver such that no multi-user interference is experienced at any of the receivers. With perfect channel knowledge at the transmitter, BD can eliminate other users' interference at each receiver. But it is not practical for receiver to feedback...
In this paper, we consider a multiuser distributed MIMO system, under multipath fading channels, with orthogonal frequency division multiplexing (OFDM) technology. The aim is to extend and evaluate, co-located precoding schemes that have been recently proposed, in a distributed scenario. Assuming knowledge of CSI prior to transmission, we can remove the interference among users by employing precoding...
MIMO systems may achieve spatial multi-user access using singular value decomposition (SVD) MIMO techniques [J.Z. Ying and K.B. Letaief, 12005; J. Kim and J.M. Cioffi, 2000]. The MIMO OFDM systems multiplex the users both in the frequency and the spatial domains. Hence, the co-channel interference caused by the sub-carrier reuse may lower the system's performance. For MIMO OFDM systems with co-channel...
Orthogonal frequency division multiplexing (OFDM) is the modulation scheme of choice for digital video broadcasting-handheld (DVB-H), which is required to operate under high mobility conditions resulting in significant Inter-carrier Interference (ICI). To mitigate ICI, several cancellation schemes have been proposed but they require reliable channel information at the receiver which is quite challenging...
Orthogonal frequency division multiplexing (OFDM) is the modulation scheme of choice for digital video broadcasting-handheld (DVB-H) which is required to operate under high mobility conditions resulting in significant Inter-Carrier Interference (ICI). Under these conditions, the conventional one-tap per subcarrier channel estimation and equalization is suboptimal since it does not account for ICI...
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