Results 1 - 10 of 3,060

Efficient Scalar Quantization for MIMO Spatial Multiplexing Receivers

by Francisco A. Monteiro, Ian J. Wassell
"... Abstract — The maximum likelihood detection of multiple input multiple output (MIMO) spatial multiplexing systems is strongly limited by its complexity. We propose that a quantized version of this problem permits the multiplications involved in the numerous calculations of Euclidean distances to be ..."
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Abstract — The maximum likelihood detection of multiple input multiple output (MIMO) spatial multiplexing systems is strongly limited by its complexity. We propose that a quantized version of this problem permits the multiplications involved in the numerous calculations of Euclidean distances

MIMO Spatial Multiplexing Systems with Limited Feedback

by unknown authors
"... Abstract — This paper investigates the problem of transmit beamforming in MIMO spatial multiplexing (SM) systems with finite-rate feedback channel. Assuming a fixed number of spatial channels and equal power allocation, we propose a new design criterion for designing the codebook of beamforming matr ..."
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Abstract — This paper investigates the problem of transmit beamforming in MIMO spatial multiplexing (SM) systems with finite-rate feedback channel. Assuming a fixed number of spatial channels and equal power allocation, we propose a new design criterion for designing the codebook of beamforming

Spectral Efficiency of Distributed Antenna Network Using MIMO Spatial Multiplexing

by Shinya Kumagai, Ryusuke Matsukawa, Tatsunori Obara, Tetsuya Yamamoto, Fumiyuki Adachi
"... Abstract—Multiple-input multiple-output (MIMO) spatial multiplexing is known to increase the transmission rate without bandwidth expansion. However, in cellular networks (CNs), the transmission rate of a user close to the cell edge significantly degrades because the received signal-to-interference p ..."
Abstract - Cited by 1 (1 self) - Add to MetaCart
Abstract—Multiple-input multiple-output (MIMO) spatial multiplexing is known to increase the transmission rate without bandwidth expansion. However, in cellular networks (CNs), the transmission rate of a user close to the cell edge significantly degrades because the received signal

Error Performance of Ultrawideband MIMO Spatial Multiplexing Systems

by Jaime Adeane, Ian J. Wassell, Wasim Q. Malik
"... Abstract — Multiple-input multiple-output spatial multiplexing (MIMO-SM) ultrawideband (UWB) systems with orthogonal frequency division multiplexing (OFDM) signaling are developed. It is shown that the proposed linear and nonlinear receivers offer substantial spatial diversity beside data rate enhan ..."
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Abstract — Multiple-input multiple-output spatial multiplexing (MIMO-SM) ultrawideband (UWB) systems with orthogonal frequency division multiplexing (OFDM) signaling are developed. It is shown that the proposed linear and nonlinear receivers offer substantial spatial diversity beside data rate

Joint Transmit/Receive MMSE Filtering for Single-carrier MIMO Spatial Multiplexing

by Shinya Kumagai, Tatsunori Obara, Tetsuya Yamamoto, Fumiyuki Adachi
"... Abstract — Multiple-input multiple-output (MIMO) spatial multiplexing is a powerful technique to increase the transmission data rate. However, if MIMO spatial multiplexing is applied to single-carrier (SC) block transmissions, it suffers from the intersymbol interference (ISI) as well as the inter-a ..."
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Abstract — Multiple-input multiple-output (MIMO) spatial multiplexing is a powerful technique to increase the transmission data rate. However, if MIMO spatial multiplexing is applied to single-carrier (SC) block transmissions, it suffers from the intersymbol interference (ISI) as well as the inter

A novel spatial modulation using MIMO spatial multiplexing,”

by Rajab M Legnain , Roshdy H M Hafez , Ian D Marsland , Abdelgader M Legnain - in Proceedings of the 1st International Conference on Communications, Signal Processing and Their Applications (ICCSPA ’13), , 2013
"... Abstract-In this paper we propose a new Multiple-Input Multiple-Output (MIMO) transmission scheme that combines the generalised spatial modulation (GSM) with MIMO spatial multiplexing technique. Unlike the GSM which uses N A active antennas to transmit the same symbol, the proposed scheme uses the ..."
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Abstract-In this paper we propose a new Multiple-Input Multiple-Output (MIMO) transmission scheme that combines the generalised spatial modulation (GSM) with MIMO spatial multiplexing technique. Unlike the GSM which uses N A active antennas to transmit the same symbol, the proposed scheme uses

Optimal minimum distance based precoder for MIMO spatial multiplexing systems

by Ludovic Collin, Ieee Olivier Berder, Student Member, Student Member, Gilles Burel - IEEE Trans. on Signal Processing , 2004
"... We describe a new precoder based on optimization of the minimum Euclidean distance dmin be-tween signal points at the receiver side and for use in multiple-input multiple-output (MIMO) spatial multiplexing systems. Assuming that channel state information (CSI) can be made available at the transmitte ..."
Abstract - Cited by 13 (2 self) - Add to MetaCart
We describe a new precoder based on optimization of the minimum Euclidean distance dmin be-tween signal points at the receiver side and for use in multiple-input multiple-output (MIMO) spatial multiplexing systems. Assuming that channel state information (CSI) can be made available

Minimum BER Power Allocation for MIMO Spatial Multiplexing Systems

by Neng Wang, Steven D. Blostein
"... Abstract — Power allocation for multiple-input multiple-output (MIMO) spatial multiplexing systems is investigated. Minimization of bit error rate (MBER) is employed as the optimization criterion. MBER power allocation schemes for a variety of receiver structures, including zero-forcing (ZF), succes ..."
Abstract - Cited by 5 (1 self) - Add to MetaCart
Abstract — Power allocation for multiple-input multiple-output (MIMO) spatial multiplexing systems is investigated. Minimization of bit error rate (MBER) is employed as the optimization criterion. MBER power allocation schemes for a variety of receiver structures, including zero-forcing (ZF

Approximate Minimum BER Power Allocation for MIMO Spatial Multiplexing Systems

by Neng Wang, Steven D. Blostein, Senior Member
"... Abstract—Precoding for multiple-input multiple-output (MIMO) spatial multiplexing generally requires high feedback overhead and/or high-complexity processing. Simultaneous reduction in transmitter complexity and feedback overhead is proposed by imposing a diagonal structural constraint to precoding, ..."
Abstract - Cited by 11 (1 self) - Add to MetaCart
Abstract—Precoding for multiple-input multiple-output (MIMO) spatial multiplexing generally requires high feedback overhead and/or high-complexity processing. Simultaneous reduction in transmitter complexity and feedback overhead is proposed by imposing a diagonal structural constraint to precoding

PAPER Computational Complexity Reduction of MLD Based on SINR in MIMO Spatial Multiplexing Systems

by unknown authors
"... SUMMARY MIMO spatial multiplexing systems are attracting a lot of attention because of their high spectral effiencies. Maximum Likelihood Detection (MLD) is known to be the optimal signal detection method for MIMO spatial multiplexing systems in terms of bit error rate (BER). However, the main drawb ..."
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SUMMARY MIMO spatial multiplexing systems are attracting a lot of attention because of their high spectral effiencies. Maximum Likelihood Detection (MLD) is known to be the optimal signal detection method for MIMO spatial multiplexing systems in terms of bit error rate (BER). However, the main
Results 1 - 10 of 3,060