Recent Advances in Multiuser MIMO Systems
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Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:157
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Reconfigurable antennas and configuration selection methods for MIMO ad hoc networks
In this paper, we quantify the performance enhancements that can be provided by reconfigurable antennas in an ad hoc network where all nodes employ multiple input multiple output communication techniques. We p...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:147 -
Improved and weighted sum rate maximization for successive zero-forcing in multiuser MIMO systems
We propose an improved algorithm for optimizing the transmit covariance matrices for successive zero-forcing (SZF) precoding in multiple-input multiple-output systems. We use a conjugate gradient projection me...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:133 -
Average minimum transmit power to achieve SINR targets: performance comparison of various user selection algorithms
In multi-user communication from one base station (BS) to multiple users, the problem of minimizing the transmit power to achieve some target-guaranteed performance (rates) at users has been well investigated ...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:127 -
Hadamard upper bound on optimum joint decoding capacity of Wyner Gaussian cellular MAC
This article presents an original analytical expression for an upper bound on the optimum joint decoding capacity of Wyner circular Gaussian cellular multiple access channel (C-GCMAC) for uniformly distributed...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:110 -
Frequency domain equalization space-time block-coded CDMA transmission system
In this work we propose a space-time block-coded (STBF) CDMA transmission system suitable for use with frequency domain equalization (FDE) algorithms. We illustrate the FDE by implementing the maximal ratio co...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:80 -
Joint iterative beamforming and power adaptation for MIMO ad hoc networks
In this paper, we present distributed cooperative and regret-matching-based learning schemes for joint transmit power and beamforming selection for multiple antenna wireless ad hoc networks operating in a mult...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:79 -
Low complexity lattice reduction scheme for STBC two-user uplink MIMO systems
Recently, a lattice reduction-aided (LRA) multiple-input multiple-output detection scheme has been proposed in junction with linear (as well as nonlinear) detectors. It is well known that these schemes provide...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:76 -
The promise of downlink MU-MIMO for high-capacity next generation mobile broadband networks based on IEEE 802.16 m
The dramatic increase of the demand for mobile broadband services poses stringent requirements on the performance evolution of currently deployed mobile broadband networks, such as Mobile WiMAX Release 1 and 3...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:63 -
Adaptive antenna selection and Tx/Rx beamforming for large-scale MIMO systems in 60 GHz channels
We consider a large-scale MIMO system operating in the 60 GHz band employing beamforming for high-speed data transmission. We assume that the number of RF chains is smaller than the number of antennas, which m...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:59 -
Reduced feedback for selective fading MIMO broadcast channels
In this article, we analyze the selective multiple-input multiple-output broadcast channel, where links are assumed to be selective in both time and frequency. The assumption of full channel knowledge at the t...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:45 -
Orthogonal beamforming using Gram-Schmidt orthogonalization for multi-user MIMO downlink system
Simultaneous transmission to multiple users using orthogonal beamforming, known as space-division multiple-access (SDMA), is capable of achieving very high throughput in multiple-input multiple-output (MIMO) b...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:41 -
Interference-aware receiver structure for multi-user MIMO and LTE
In this paper, we propose a novel low-complexity interference-aware receiver structure for multi-user MIMO that is based on the exploitation of the structure of residual interference. We show that multi-user M...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:40 -
Adaptive utility-based scheduling algorithm for multiuser MIMO uplink
Resource allocation issues are discussed in the context of a virtual multiuser MIMO uplink assuming users equipped with a single antenna. A scheduling algorithm, which efficiently mitigates the co-channel inte...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:22 -
On the achievable rates of multiple antenna broadcast channels with feedback-link capacity constraint
In this paper, we study a MIMO fading broadcast channel where each receiver has perfect channel state information while the channel state information at the transmitter is acquired by explicit channel feedback...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:21 -
On the Lambert-W function for constrained resource allocation in cooperative networks
In cooperative networks, a variety of resource allocation problems can be formulated as constrained optimization with system-wide objective, e.g., maximizing the total system throughput, capacity or ergodic ca...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:19 -
Vector perturbation based adaptive distributed precoding scheme with limited feedback for CoMP systems
A downlink adaptive distributed precoding scheme is proposed for coordinated multi-point (CoMP) transmission systems. The serving base station (BS) obtains the optimal precoding vector via user feedback. Meanw...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:8 -
Power allocation strategies for distributed precoded multicell based systems
Multicell cooperation is a promising solution for cellular wireless systems to mitigate intercell interference, improve system fairness, and increase capacity. In this article, we propose power allocation tech...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:1 -
Performance-Driven Symbol Mapping for Downlink and Point-to-Point MIMO Systems
An adaptive symbol mapping scheme is proposed for single-user point-to-point and multiuser downlink multiple-input multiple output (MIMO) systems aiming at the minimization of the overall system bit error rate...
Citation: EURASIP Journal on Wireless Communications and Networking 2011 2011:376394