[PDF] Top 20 Semiblind frequency-domain timing synchronization and channel estimation for OFDM systems

... in timing syn- chronization at very low ...perfect timing synchronization when SNR exceeds 1 ...perfect timing synchro- nization is achievable using the proposed algorithm when SNR = 6 ... See full document

... of channel coefficients and synchronization parameters are two main challenges in realization of MIMO- OFDM systems which are ...no, estimation of cannel coefficients is done with the ... See full document

... Since synchronization and channel estimation are mutu- ally related, joint channel estimation and synchronization would provide better performance ...the estimation of ... See full document

... a semiblind channel estimation method for MIMO–OFDM systems based on a specific and non-redundant precoding scheme, say, circular pre- coding, since the circular precoding allows ... See full document

... priori channel- estimation MSE as a function of the corresponding estimation MSEs associated with the previous N tap [t] number of OFDM ...priori estimation MSEs. Since the recursive ... See full document

... and frequency grid of the LTE system in ...the channel estimator is based on a cascaded 2×1D LMMSE technique during 14 OFDM symbols,as shown in ...in frequency domain is followed by the ... See full document

... Channel estimation plays a very important role in any wireless communication ...Basically channel estimation are classified into two types namely, pilot-based channel estimation ... See full document

... in channel impulse response (CIR) can be regarded as ...the channel delays of all transmit antenna can be consid- ered to be consistent due to the small transmission base station ...the channel ... See full document

... orthogonal frequency division multi- plexing (OFDM) systems have gained a lot of popularity due to high bandwidth, power efficiency, flexibility, and use of license-free spectrum ...optical ... See full document

... for channel estimation and ...the OFDM data block. Thus to iteratively achieve reliable time-domain channel estimation and frequency-domain data detection in ... See full document

... So, channel estimation in the system is ...the channel estimation method in multi-antenna systems is better performance than in one antenna ...the channel estimation with ... See full document

... multipath channel can be modeled by a tapped delay line, and the methods to emulate time-varying Rayleigh fading on each channel tap are ...Two channel models recommended by the standards [113, 114] ... See full document

... iterative frequency-domain block turbo equalizer for SC systems with average approximation, for both perfect and estimated ...in OFDM systems we have not used any guard bands around the ... See full document

... joint timing synchronization and channel estimation algorithm suitable for down- link MIMO networks based on a time-domain train- ing sequence arrangement in the short-range wireless ... See full document

... TO estimation along with the proposed method) with that of the system with ideal timing and fre- quency ...The channel parameters can be ob- tained by (10) and the phase offset is compensated by ... See full document

... the frequency offset by using CP without using training sequences and hence requires no additional bandwidth,but the performance of the estimator depends on the length of CP and its estimation range does not ... See full document

... STO estimation, during the past decade, many pilot-based channel estimation schemes have been proposed for OFDM/OQAM systems, which can be broadly classified into frequency ... See full document

... symbol timing synchronization in multipath channels, utilizing a correlation length that equals the summation of the channel and CP ...for synchronization, the simplified algo- rithm in [12] ... See full document

... orthogonal frequency division multiplexing (OFDM) [1] and single carrier with frequency domain equalization (SC-FDE) [2], which are compared to impulse based UWB communication system in terms ... See full document

... the channel, which is compared to the rounded mean delay of the ...the estimation τ ˜ , pro- duces no ...the estimation performance, the influence of the CFO on the RMSE is investigated in Figure 6, ... See full document