[PDF] Top 20 Adaptive Frequency-Domain Channel Estimator in 4 x 4 MIMO-OFDM Modems

... Subcarrier frequency allocation. B. Adaptive Frequency-Domain Channel Estimator ...subcarrier frequency allocation. Each OFDM symbol employs 64 subcarriers, 52 are ... See full document

... orthogonal frequency-division multiplexing (OFDM) technology, and space-time block code (STBC) scheme comprises a potential solution for next-generation wireless communications ...However, ... See full document

... pointed in order to make systems work ...orthogonal frequency-di- vision multiplexing (SISO-OFDM) and multiple-input multiple-output orthogonal frequency-division multiplexing ... See full document

... proposed channel estimator is shown in Fig. 8 and 9 for OFDM with 32 active carriers as functions of E b /N 0 ...LMS channel estimators, as well as the “perfect” channel ... See full document

... For several special classes of cyclic reference sequences, the stability bounds of the adaptive filter with least mean-square (LMS) algorithm and its variants, leaky-LMS [r] ... See full document

... resolution in the monostable delay amplifier, a counter is employed to count the number of rounds of the inner loop to reduce the hardware cost and maintain ...glitch in signal ...output frequency by ... See full document

... With its low hardware complexity and accurate estimation performance, the raised-cosine frequency- domain interpolation channel estimator will find many appli- cations in OFDM co[r] ... See full document

... the frequency estimator’s MSE performance when the SNR for each receive antenna is assumed to be per- fectly ...both frequency estimators using the optimal weighting is insensitive to the SNR ... See full document

... employ frequency domain equalization (FDE) to estimate the channel response, including frequency response of the 60 GHz RoF system and the MIMO wireless ...and MIMO techniques, ... See full document

... is in the range ...expressed in CSD codes and searched for their common subexpressions; then, the multiplications of can be implemented by CSD ...implemented in parallel ...decorrelations in ... See full document

... MMSE MIMO FDDFE with N g =0 and conventional receiver with N g =16 and 32 for ...note in Fig. 5 that while the BER of the conventional OFDM receiver is higher for ν = 31 than for ν = 15 ...(Fig. ... See full document

... our MIMO OFDM system, two issues should be taken into ...specification in different modes, the 256-point FFT unit needs to support 1–8-stream 300-Msample/s or ...shown in Fig. 3. It can ... See full document

... Received: 4 March 2008 / Revised: 4 August 2009 / Accepted: 6 August 2009 / Published online: 8 September 2009 # 2009 Springer Science + Business Media, ...Manufactured in the United States Abstract ... See full document

... conventional adaptive DFE for any step ...conventional adaptive DFE. We then consider a time-varying channel constructed from Proakis C channel used ...paths in the channel now ... See full document

... multi-carrier MIMO system if the MIMO dimension is very ...size in the OFDM ...the MIMO detection must be performed on every subcarrier, the complexity of QR decom- position becomes ... See full document

... analysis of a PLL for timing recovery in hard disk drives,” Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on , Volume: 46 Issue: 8 , Aug. 1999 pp. 1026 -1031 • [5] O. Yaniv and D. ... See full document

... The channel transfer function of pilot tones are estimated by using low-rank MMSE estimator, and the channel transfer function of data tones are in- terpolated by piecewise l[r] ... See full document

... 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

... LS estimator when the dual updating frequencies option is not ...inversion in both Phase I and Phase II and significantly reduce the computing ...time domain modelling order, 𝐾 𝐿 , is small, the ... See full document

... blind channel estimation scheme for zero-padding (ZP) multiple- input multiple-output (MIMO)–orthogonal frequency division multiplexing (OFDM) ...Toeplitz channel matrix structure, it ... See full document