Search Results - "Sezginer, S."
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1
OFDM peak power reduction with simple amplitude predistortion
Published in IEEE communications letters (01-02-2006)“…In this paper, we propose a new peak-to-average power ratio (PAPR) reduction algorithm for OFDM transmission. The algorithm is based on simple amplitude…”
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Journal Article -
2
Asymptotically Efficient Reduced Complexity Frequency Offset and Channel Estimators for Uplink MIMO-OFDMA Systems
Published in IEEE transactions on signal processing (01-03-2008)“…In this paper, we address the joint data-aided estimation of frequency offsets and channel coefficients in uplink multiple-input multiple-output orthogonal…”
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Journal Article -
3
Metric-Based Symbol Predistortion Techniques for Peak Power Reduction in OFDM Systems
Published in IEEE transactions on wireless communications (01-07-2007)“…In this paper, we present a novel metric-based symbol predistortion algorithm and describe three variants for peak-to-average power ratio (PAPR) reduction in…”
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Journal Article -
4
Full-rate full-diversity 2 x 2 space-time codes of reduced decoder complexity
Published in IEEE communications letters (01-12-2007)“…Multiple-input multiple-output (MIMO) techniques have become an essential part of broadband wireless communications systems. For example, the recently…”
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Journal Article -
5
Asymptotic Cramér-Rao Bounds and Training Design for Uplink MIMO-OFDMA Systems With Frequency Offsets
Published in IEEE transactions on signal processing (01-07-2007)“…In this paper, we address the data-aided joint estimation of frequency offsets and channel coefficients in the uplink transmission of multiple-input…”
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Journal Article -
6
Peak-to-average power ratio reduction in CDMA systems using metric-based symbol predistortion
Published in IEEE communications letters (01-08-2006)“…In this paper, we propose a simple peak-to-average power ratio (PAPR) reduction algorithm for code-division multiple access (CDMA) systems. The described…”
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Journal Article -
7
On High-Rate Full-Diversity 2 x 2 Space-Time Codes with Low-Complexity Optimum Detection
Published in IEEE transactions on communications (01-05-2009)“…The 2times2 MIMO profiles included in mobile WiMAX specifications are Alamouti's space-time code (STC) for transmit diversity and spatial multiplexing (SM)…”
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Journal Article -
8
MIMO techniques and full frequency reuse in mobile WiMAX systems
Published in 2009 International Conference on Telecommunications (01-05-2009)“…We first review recent developments in multiple-input multiple-output (MIMO) techniques for mobile WiMAX systems and discuss full-rate and high-rate space-time…”
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Conference Proceeding -
9
Joint frequency offset and channel estimation in the OFDMA uplink: Cramer-Rao bounds and training sequence design
Published in IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, 2005 (2005)“…In this paper, we address the data-aided joint estimation of frequency offsets and channel coefficients in the uplink of an OFDMA scheme. For large training…”
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Conference Proceeding -
10
A Simple and Robust Equal-Power Transmit Diversity Scheme
Published in IEEE communications letters (01-01-2011)“…Spatial diversity techniques are now used in most wireless communications systems to improve robustness to signal fading. On the downlink of cellular systems,…”
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Journal Article -
11
Iterative compensated MMSE channel estimation in LTE systems
Published in 2012 IEEE International Conference on Communications (ICC) (01-06-2012)“…In this paper, an iterative channel estimation algorithm is considered in LTE systems. In order to take advantage of "null" sub-carriers (guard band) in LTE…”
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Conference Proceeding -
12
Co-channel interference cancellation in reuse-1 deployments of WiMAX system
Published in 2012 IEEE Wireless Communications and Networking Conference (WCNC) (01-04-2012)“…In order to maximize the spectral efficiency, the current wireless systems tend to allocate the same frequency resources to different users, which causes the…”
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Conference Proceeding -
13
Robust MIMO Detection Under Imperfect CSI Based on Bayesian Model Selection
Published in IEEE wireless communications letters (01-08-2013)“…A robust receiver for multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) systems is proposed. We are interested in the…”
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14
TSVD-EM channel estimation for transmit diversity in LTE systems
Published in 2012 IEEE Wireless Communications and Networking Conference (WCNC) (01-04-2012)“…In this paper, the truncated singular value decomposition expectation-maximization (TSVD-EM) based channel estimation on single transmit antenna transmission…”
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Conference Proceeding -
15
Cram É R-Rao Bound and Training Sequence Selection for Mimo-Ofdma Transmissions Impaired by Frequency Offsets
Published in 2006 IEEE International Conference on Acoustics Speech and Signal Processing Proceedings (2006)“…In this paper, we investigate the data-aided estimation of frequency offsets and channel coefficients in the uplink transmission of MIMO-OFDMA systems. A…”
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Conference Proceeding -
16
Downlink Performance Analysis of Full-Rate STCs in 2x2 MIMO WiMAX Systems
Published in VTC Spring 2009 - IEEE 69th Vehicular Technology Conference (01-04-2009)“…MEMO techniques play a key role in the current wireless specifications including IEEE 802.1 In, IEEE 802.16e, and LTE. Indeed, spatial multiplexing (SM) and…”
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Conference Proceeding -
17
Full Frequency Reuse in OFDMA-Based Wireless Networks with Sectored Cells
Published in 2009 IEEE Wireless Communications and Networking Conference (01-04-2009)“…Due to overlap of antenna radiation patterns and the resulting interference between sectors, different frequency bands are typically used in different sectors…”
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Conference Proceeding -
18
Analysis of Linear Precoding Techniques for OFDMA Systems
Published in 2007 IEEE Wireless Communications and Networking Conference (01-03-2007)“…This paper investigates the performance of linearly precoded OFDMA systems. Based on the pairwise error probability (PEP) analysis, a new design criterion,…”
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Conference Proceeding -
19
Asymptotically Efficient Reduced-Complexity Frequency Offset Estimation for Uplink MIMO-OFDMA Systems
Published in 2007 IEEE International Conference on Communications (01-06-2007)“…In this paper, we address the joint data-aided estimation of the frequency offsets and channel coefficients in the uplink MIMO-OFDMA systems. A novel low…”
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Conference Proceeding -
20
A Comparison of Full-Rate Full-Diversity 2x2 Space-Time Codes for WiMAX Systems
Published in 2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications (01-08-2008)“…Multiple-input multiple-output (MIMO) techniques have become an essential part of broadband wireless communications systems. For example, the recently…”
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Conference Proceeding