Time Domain Feedback Equalizer for Fast Fading Channel in OFDM with Scattered Pilot
スポンサーリンク
概要
- 論文の詳細を見る
In this letter, a new feedback equalization scheme to suppress inter-carrier interference (ICI) in an OFDM system using scattered pilot is investigated. On a fast fading channel severe ICI occurs due to a Doppler shift and it deteriorates a bit error rate (BER) seriously because of small subcarrier spacing. In an ISDB-T receiver the equalization is mainly processed in a frequency domain because the scattered pilot is transmitted over the subcarriers. However, the frequency domain equalization may not suppress severe ICI in the case of the fast fading channel with a large Doppler shift. The proposed equalization scheme uses the scattered pilot symbols transformed in a time domain as the reference signal for feedback taps. Numerical results through computer simulation show that the proposed scheme improves the BER performance especially with low carrier-to-noise ratio (CNR) conditions.
- （社）電子情報通信学会の論文
- 2010-12-01
著者
-
Sanada Yukitoshi
Dept. Of Electronics And Electrical Engineering Keio University
-
NAKAGAWA Yutaro
Dept. of Electronics and Electrical Engineering, Keio University
-
Nakagawa Yutaro
Dept. Of Electronics And Electrical Engineering Keio University
-
Sanada Yukitoshi
Dept. Of Electronics And Electrical Engineering Keio Univ.
関連論文
- Multipath Diversity through Time Shifted Sampling in Repeater assisted Spatially Correlated OFDM Systems
- Improvement on Diversity Gain with Filter Bandwidth Enlargement in Fractional Sampling OFDM Receiver
- Performance of Adaptive Array Antennas with Multicarrier DS/CDMA in a Mobile Fading Environment
- Channel Estimation Scheme for a RAKE Receiver with Fractional Sampling in IEEE802.11b WLAN System
- Modified Direct Insertion/Cancellation Method Based Sample Rate Conversion for Software Defined Radio
- Frequency Offset Estimation Scheme in the Presence of Time-Varying DC Offset for OFDM Direct Conversion Receivers(Wireless Communication Technologies)
- Experimental Investigation of Sampling Rate Selection with Fractional Sampling for IEEE802.11b WLAN System
- Direct-Sequence/Spread-Spectrum Communication System with Sampling Rate Selection Diversity
- Adjacent Channel Interference Cancellation Scheme for Low-IF Receiver in Multi-Channel Reception(Wireless Communication Technologies)
- Interference Suppression in OFDM-Antenna Array with Time Shifted Sampling
- Effect of Pulse Shaping Filters on a Fractional Sampling OFDM System with Subcarrier-Based Maximal Ratio Combining
- Sampling Rate Selection for Fractional Sampling in OFDM
- Novel CSMA Scheme for DS-UWB Ad-hoc Network with Variable Spreading Factor(Wide Band Systems)
- Experimental Investigation of an IR-UWB Positioning System with Comparators(UWB, Wideband Systems)
- Sampling Point Selection Scheme for Fractional Sampling-OFDM Receivers on Fast Time-Varying Multipath Channels
- IQ Imbalance Estimation Scheme in the Presence of DC Offset and Frequency Offset in the Frequency Domain
- IQ Imbalance Compensation Scheme for MB-OFDM Using Transmission Diversity(Wide Band Systems)
- Analysis on IR-TR-UWB Interference against Narrowband Systems
- OFDM Interference Suppression for DS/SS Systems Using Complex FIR Filter(OFDM/CDMA, Wideband Systems)
- Time Domain Feedback Equalizer for Fast Fading Channel in OFDM with Scattered Pilot
- Path Diversity with Fractional Delay Transmission for Fractional Sampling-MIMO-OFDM System
- Frequency Offset Amplify-and-Forward Relay in OFDM System
- Non-orthogonal Access Scheme over Multiple Channels with Iterative Interference Cancellation and Fractional Sampling in OFDM Receiver
- Reliable Data Transmission for Resonant-Type Wireless Power Transfer
- Experimental Investigation of Joint Decoding in Overloaded MIMO-OFDM System