[PDF] Top 20 Low Complexity Blind Symbol Timing Offset Estimation in OFDM Systems
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Low Complexity Blind Symbol Timing Offset Estimation in OFDM Systems
... A low-complexity blind timing algorithm is proposed to estimate timing offset in OFDM systems when multiple symbols are received (the timing offset estimation ... See full document
9
Orthogonal Sequences Based Multi-CFO Estimation and Semi-Blind ICA Based Equalization for Multiuser CoMP Systems
... communication systems. One of the main draw- backs of OFDM systems is their sensitivity to the carrier frequency offset (CFO), due to the imperfect local oscillators between transmitter and ... See full document
22
Fast Synchronization Scheme for GSM at Lower SNR
... communication systems and associated service provisioning has alarmed the requirement for certain optimal communication technique for optimal service of ...GSM systems such as, modulators and signal ...lead ... See full document
10
Joint frequency offset, time offset, and channel estimation for OFDM/OQAM systems
... 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 domain and time ... See full document
19
Carrier frequency offset estimation for OFDM systems with time-varying DC Offset
... CFO, OFDM may also suffer from other disturbances such as direct current offset ...In OFDM systems, DCO not only degrades demodulation performance but also vio- lates CFO estimation ...CFO ... See full document
6
A Practical Scheme for Frequency Offset Estimation in MIMO OFDM Systems
... A subspace-based method for CFO estimation in MIMO- OFDM has recently been proposed in [17]. In this scheme, pilot symbols at different transmit antennas are frequency- division multiplexed (FDM) and placed ... See full document
9
Reducing the Leakage in OFDM Systems by Using Low Complexity DFT- Based Channel Estimation
... parallel-to-parallel(P/P) converter reshapes the modulated data stream x(n).Into, for example, N=8 parallel data streams. This P/P converter makes sure that N=2^n,where n is an integer, so that the transmitter can ... See full document
5
Blind Coarse Timing Offset Estimation for CP OFDM and ZP OFDM Transmission over Frequency Selective Channels
... (the timing offset is simulated as an integer multiple of the receiver’s sampling ...the timing offset estimate falling in the ISI free region. Indeed, for CP-OFDM signals, some symbol timming ... See full document
8
Low Complexity Estimation of CFO and Frequency Independent I/Q Mismatch for OFDM Systems
... CFO estimation scheme partially similar to the approach in ...novel estimation schemes which are robust to any values of both transmitter and receiver I/Q mismatch, and have better accuracy of the I/Q ... See full document
11
TWO APPROACHES ON CARRIER FREQUENCY OFFSET ESTIMATION IN MIMO OFDM SYSTEMS
... wireless systems. Since OFDM offers the possibility for high data rates at low decoding complexity, it has been widely adopted by many standards ...although OFDM is a promising ... See full document
14
Pilot Symbol Assisted Channel Estimation for Space Time Coded OFDM Systems
... these systems, knowl- edge of the channel parameters is required at the receivers for diversity combining and ...a low complexity, bandwidth efficient, pilot-symbol-assisted (PSA) channel ... See full document
10
Low complexity closed-form solution to blind joint channel and symbol estimation in MIMO-OFDM
... wireless systems, the combination of multiple input multiple output (MIMO) system and orthogonal frequency division multiplexing (OFDM) is shown to be the possible ...a low complexity ... See full document
6
Blind estimation of carrier frequency offset, I/Q imbalance and DC offset for OFDM systems
... for estimation of CFO and I/Q imbal- ance and outperforms EDE for DCO estimation espe- cially with low-to-medium ...DCO estimation with validated estimates of I/Q ... See full document
9
Pilot symbol assisted channel estimation for OFDM-based cognitive radio systems
... channel estimation in NC-OFDM cog- nitive radio ...based systems, to obtain better performance call for optimization of both pilot placement as well as pilot power ...The complexity of our ... See full document
11
Low complexity adaptive iteration algorithm for frequency tracking in OFDM systems
... a low-complexity CFO estimator, called simplified LC-CFO (SLC-CFO), adapted from LC-CFO developed in ...a low complexity lies in replacing a set of arc- tangent functions in LC-CFO by simple, ... See full document
9
A Review on Compressed Sensing based Channel Estimation in OFDM System
... LMMSE estimation to reject more clamor, or can even implant the PDP into a TD LMMSE estimator, concentrating on the most important channel taps ...apply estimation to little gatherings of subcarriers [10], ... See full document
5
Low Complexity Channel Estimation for OFDM and MC CDMA
... Our simulations were performed in the base-band frequency domain and the system configuration characterised in Table I is to a large extent similar to that in [6]. We assume having a total bandwidth of 800kHz. In the ... See full document
5
Low Complex Papr Reduction by Alternative Signal Method and Iterative Companding and Filtering Method in OFDM/OQAM Model
... of low data rate carriers to construct a composite high data rate communication ...them. OFDM has been used for Digital Audio Broadcasting (DAB) and Digital Video Broadcasting (DVB) in Europe and for ... See full document
6
Complexity Reduction Techniques for MMSE Channel Estimator in OFDM
... To find such energy contained samples, L is calculated by, , where and Ts represent cyclic extension and sampling interval of the OFDM system, respectively. The ideal value of is often chosen, as recommended by ... See full document
7
Low Complexity Channel Estimation for OFDM and MC CDMA
... SUMMARY In this paper we have proposed a channel estimation method, which is based on a low-complexity decision directed MMSE FS-CLR estimator combined with a robust time-domain FS-CIR p[r] ... See full document
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