[go: up one dir, main page]

Ramadan et al., 2018 - Google Patents

Virtual quadrature phase shift keying with low-complexity equalization for performance enhancement of OFDM systems

Ramadan et al., 2018

Document ID
8628838274825776948
Author
Ramadan K
Dessouky M
Abd El-Samie F
Elagooz S
Publication year
Publication venue
AEU-International Journal of Electronics and Communications

External Links

Snippet

Abstract The Zero-Forcing (ZF) equalizer suffers from two main problems; the noise enhancement and the high complexity due to direct matrix inversion, especially with a large number of sub-carriers. On the other hand, the Minimum Mean Square Error (MMSE) …
Continue reading at www.sciencedirect.com (other versions)

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; Arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks ; Receiver end arrangements for processing baseband signals
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2608—Allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions
    • H04L27/2607—Cyclic extensions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; Arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; Arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/022—Channel estimation of frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field

Similar Documents

Publication Publication Date Title
Ramadan et al. Virtual quadrature phase shift keying with low-complexity equalization for performance enhancement of OFDM systems
US8891662B2 (en) Reference symbol structure for DFT spread OFDM system
Al-Kamali et al. Joint low-complexity equalization and carrier frequency offsets compensation scheme for MIMO SC-FDMA systems
Dai et al. Linearly time-varying channel estimation for MIMO/OFDM systems using superimposed training
Bandari et al. OQAM implementation of GFDM
Bishnu et al. A new scheme of ICI self-cancellation in OFDM system
Ramadan et al. Joint low‐complexity nonlinear equalization and carrier frequency offset compensation for multiple‐input multiple‐output orthogonal frequency division multiplexing communication systems
Kumar et al. An efficient inter carrier interference cancellation schemes for OFDM systems
JP2018007056A (en) Radio communication system, radio transmission device and radio reception device
WO2017167386A1 (en) A transmitter for transmitting and a receiver for receiving a plurality of multicarrier modulation signals
Kaur et al. Carrier frequency offset estimation for OFDM systems using time/frequency-domain techniques
Jose et al. Peak to average power ratio reduction and inter symbol interference cancellation of FBMC-OQAM signals
Montezuma et al. Frequency-Domain Receiver Design for Doubly Selective Channels
Chang et al. PAPR Reduction for OFDM Mobile Wireless Communications by Constant-Amplitude Signal Decomposition
Al-Hussaini et al. A novel low complexity high efficiency hybrid PAPR reduction for OFDM systems
Nadar et al. OFDM pilot based channel estimation
Bereket et al. Maximum likelihood CFO estimation in OFDM based communication systems
Salehi et al. Channel estimation for MIMO-OFDM systems based on multiplexed pilot and superimposed pilot
Kavitha et al. LMMSE channel estimation algorithm based on channel autocorrelation minimization for LTE-Advanced with adaptive guard interval
Adegbite et al. Time-domain SI estimation for SLM based OFDM systems without SI transmission
Suzuki et al. Pilot-based reference amplitude compensation for ultra-multi-level PAM-SSB-DFTs-OFDM
Guerreiro et al. On the optimum performance of CE-OFDM schemes in frequency-selective channels
Singh A DFT based channel estimation technique in orthogonal-frequency division-multiplexing (OFDM): A Review
Chamkhia et al. Improvement of LTE System Performances by Using a New Pilot Structure
Matsumoto et al. Frequency domain phase noise compensation employing adaptive algorithms for millimeter-wave OFDM systems