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A Low-complexity Precoder Searching Algorithm for MIMO-OFDM Systems
... of MIMO-OFDM systems. In practical systems, the precoding matrix is computed at the receiver, and then fed back to the ...representing a quantized precoding matrix is fed ...from ... See full document
4
A Low-Complexity Minimum-Interference Symbol Time Estimation for OFDM Systems
... rithms for orthogonal frequency-division multiplexing (OFDM) systems are mostly based on the maximum correlation result of the cyclic ...obtain a better ST ...CIR, a ... See full document
6
Low-complexity Kalman channel estimator structures for OFDM systems with and without virtual carriers
... receiver complexity, especially when the number of subcarriers is ...paper, low-complexity Kalman channel estimator structures are derived for OFDM systems with and without ... See full document
5
Design of an FFT/IFFT processor for MIMO OFDM systems
... in a MIMO OFDM system, as shown in ...cause a large increase in the hardware complexity and power consumption, compared with that of the single FFT ...processor for the ... See full document
9
A 2.4-Gsample/s DVFS FFT processor for MIMO OFDM communication systems
... radix-2 algorithm and scheduling technique are employed to reduce the number of complex multipliers and the power ...rate for FFT core 1 and core ...same for all modes, the input scheduler is located ... See full document
14
MDC FFT/IFFT Processor With Variable Length for MIMO-OFDM Systems
... its low utilization rate in memory and computational elements such as adders and ...suitable for FFT/IFFT processors in MIMO-OFDM systems, because the butterflies and multipliers are ... See full document
12
Joint Sequence Design for Robust Channel Estimation and PAPR Reduction for MIMO-OFDM Systems
... words: MIMO-OFDM, PAPR, superimposed sequence, channel esti- mation, a ffine precoder ...Introduction MIMO-OFDM has proven to be the key enabler of high- speed, bandwidth efficient ... See full document
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Achieving Arbitrary Multiplexing Rates for MIMO-OFDM Systems by Hybrid Cyclic Delay Diversity
... As for the receivers, with HCDD-based SVB, the smaller terminals with single antenna only need to access the subcar- riers carrying the basic layer with highest reliability ( r k = ...because a small ... See full document
8
QRD-based Precoder Selection for Maximum-likelihood MIMO Detection
... computational complexity of the enhanced QRD-based method can be effectively ...Except for precoding, antenna selection is also a common approach to improving the transmission quality in MIMO ... See full document
6
CSI Feedback for Closed-Loop MIMO-OFDM Systems based on B-splines
... an MIMO-OFDM BS system [14] with QPSK modulation, and the transmitter applies beamforming based on the fedback CRs with ...that for the B-spline model, the BER is no longer reduced when the number of ... See full document
5
Statistical covariance-matching based blind channel estimation for zero-padding MIMO-OFDM systems
... Such a phenomenon is not uncommon in the literature, and has been seen in many studies, ...subspace algorithm in the low SNR region, and hence could be a potential candidate in harsh ... See full document
9
Linear Interference Suppression With Covariance Mismatches in MIMO-OFDM Systems
... schemes for MIMO-OFDM ...of a frame due to pilot location offset between the two OFDM ...within a frame, we derived novel relatively low-complexity LMMSE and SIC ... See full document
12
Low-complexity prediction techniques of K-best sphere decoding for MIMO systems
... Maximum-likelihood the proposed schemes are simulated in a 4 x 4 MIMO system (ME) sequence detection is one of the detection schemes for of uncorrelated flat-fading channels, and the sim[r] ... See full document
5
X-Structured Precoder Designs for Spatial-Multiplexing MIMO and MIMO Relay Systems
... the precoder having an ...propose a systematic design method to solve the problems. The proposed precoder has a simple closed- form expression, and no numerical searches and lookup tables are ... See full document
14
Limited Feedback of Precoder and Bit Loading for MIMO Systems: A Joint Design
... of Precoder and Bit Loading for MIMO Systems: A Joint Design Hung-Chun Chen and Yuan-Pei Lin, Senior Member, IEEE Abstract—This paper jointly considers limited feedback of bit loading ... See full document
12
A low-complexity frame synchronization and frequency offset compensation scheme for OFDM systems over fading channels
... exists a residual frequency tracking error that introduces ICI and de- grades the performance of the acquisition ...scheme, a computer simulation is ...(22) for SNR dB and SNR dB, ...results ... See full document
14
Frequency estimators for MIMO-OFDM systems
... EYS algorithm for systems us- ing four short training symbols; true CFO = ...SNR for each receive antenna is assumed to be per- fectly ...of a proper weighting is clearly ...combining ... See full document
7
A low-complexity synchronizer for OFDM-based UWB system
... A Low-Complexity Synchronizer for OFDM-Based UWB System Hsuan-Yu Liu, Student Member, IEEE, and Chen-Yi Lee, Member, IEEE Abstract—In current ultra-wideband (UWB) baseband synchro- ... See full document
5
Algorithm and architecture design for a low-complexity adaptive equalizer
... In this section, three adaptive equalizers based on the LMS algorithm, Chen’s scheme, and the proposed GSPT-A LMS algorithm are implemented on FPGA to compare the im- plement[r] ... See full document
4
Low-Complexity ICI Suppression Methods Utilizing Cyclic Prefix for OFDM Systems in High-Mobility Fading Channels
... Veh. A channel is ...DVB systems, they are plotted in dashed ...even for the most modest CP length, namely, ...extremely low complexity Method 1 ... See full document
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