Exploiting Phase Noise Properties in the Design of MIMO-OFDM Receivers

Bittner, Steffen; Zimmermann, Ernesto; Fettweis, Gerhard

doi:10.1109/wcnc.2008.171

Cited by 27 publications

(22 citation statements)

References 14 publications

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“…For simplicity, we assume the Wiener PN model for the free-running oscillator, whose discrete-time expression is given as follows [11,[13][14][15]:…”

Section: System Modelmentioning

confidence: 99%

“…Unfortunately, MIMO-OFDM systems are sensitive to oscillator phase noises [11][12][13][14][15][16][17][18][19][20][21][22][23], which cause common phase error (CPE) and intercarrier interference (ICI). While the CPE is a common phase rotation for all the subcarriers (of one OFDM symbol), the ICI represents the interferences caused by nonorthogonal subcarriers.…”

Section: Introductionmentioning

confidence: 99%

“…The PN effect on single-user MIMO-OFDM (SU-MIMO-OFDM) systems has been well studied in the literature [11][12][13][14][15][16][17][18][19]. Most of the works assume a common oscillator for all the antennas at the transceiver [11][12][13][14][15][16], whereas the case of an independent oscillator for each antenna has been studied in [17][18][19]. Assuming the base station (BS) antennas share a common oscillator, the downlink (DL) of the multiuser MIMO-OFDM (MU-MIMO-OFDM) system (at each user) is similar to the single-user case (in that the user see only a single transmit PN).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Uplink Multiuser MIMO‐OFDM System in the Presence of Phase Noises, Power Imbalance, and Correlation

Chen

Wolfgang

Svensson

2018

Wireless Communications and Mobile Computing

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The effects of phase noises (PNs), power imbalances, and correlations on multiuser orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) systems are studied. It is assumed that each user is equipped with a single antenna, whereas the base station (BS) has multiple antennas and use zero-forcing (ZF) decoder for multiuser detection. Since each user has an independent oscillator, the received uplink (UL) signal at each BS antenna is corrupted by all of these independent PNs. Furthermore, there may be power imbalances and correlations (due to common scatterers) between different users. These impairments are jointly analyzed in this work. A closed-form expression of the mean square error (MSE) performance of the multiuser MIMO-OFDM system is derived. The analytical results are verified by simulations.

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“…For simplicity, we assume the Wiener PN model for the free-running oscillator, whose discrete-time expression is given as follows [11,[13][14][15]:…”

Section: System Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Uplink Multiuser MIMO‐OFDM System in the Presence of Phase Noises, Power Imbalance, and Correlation

Chen

Wolfgang

Svensson

2018

Wireless Communications and Mobile Computing

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“…The subsequent parameters could be a part of a general OFDM system requirement: (Bittner et al, 2008):…”

Section: Ofdm System Designmentioning

confidence: 99%

A Review on OFDM and PAPR Reduction Techniques

Кумар¹,

Gupta²

2015

American Journal of Engineering and Applied Sciences

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OFDM is a multi carrier transmission technique where a single set of data is transmitted over a number of sub-carrier. OFDM takes the advantage of multi-path propagation and reduces the fading effect. The idea of OFDM is to split the total transmission bandwidth into a number of orthogonal subcarriers which reduces the inter-symbol-interference, power consumption and increases the capacity and efficiency of the system. PeakAverage-Power-Ratio (PAPR) is one of the dis-advantage of OFDM which reduces the efficiency of system. In first part of this review, We have describe the OFDM characteristics of signals and its designing by combining the different block and in next part of this work, we have consider the PAPR effect in OFDM signals and have compared and review a several PAPR Reduction Techniques. The aim of this article is to provide a comprehensive detail about the implementation of an OFDM System and to study the different PAPR reduction techniques.

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“…The PN effects on OFDM or MIMO-OFDM systems have been extensively studied in the literature [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. Most of the works assume free-running oscillators, except for [10][11][12][13], where phase locked loop (PLL) based oscillators were also assumed.…”

Section: Introductionmentioning

confidence: 99%

Phase Noise Effect on MIMO-OFDM Systems with Common and Independent Oscillators

Chen

Wang

Fan

et al. 2017

Wireless Communications and Mobile Computing

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The effects of oscillator phase noises (PNs) on multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems are studied. It is shown that PNs of common oscillators at the transmitter and at the receiver have the same influence on the performance of (single-stream) beamforming MIMO-OFDM systems, yet different influences on spatial multiplexing MIMO-OFDM systems with singular value decomposition (SVD) based precoding/decoding. When each antenna is equipped with an independent oscillator, the PNs at the transmitter and at the receiver have different influences on beamforming MIMO-OFDM systems as well as spatial multiplexing MIMO-OFDM systems. Specifically, the PN effect on the transmitter (receiver) can be alleviated by having more transmit (receive) antennas for the case of independent oscillators. It is found that the independent oscillator case outperforms the common oscillator case in terms of error vector magnitude (EVM).

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Exploiting Phase Noise Properties in the Design of MIMO-OFDM Receivers

Cited by 27 publications

References 14 publications

Uplink Multiuser MIMO‐OFDM System in the Presence of Phase Noises, Power Imbalance, and Correlation

Uplink Multiuser MIMO‐OFDM System in the Presence of Phase Noises, Power Imbalance, and Correlation

A Review on OFDM and PAPR Reduction Techniques

Phase Noise Effect on MIMO-OFDM Systems with Common and Independent Oscillators

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