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multi-carrier communication systems

Lowest PAPR Selection Technique from SLM and PTS with One IFFT Block in Wireless MC-CDMA Communication Systems

Lowest PAPR Selection Technique from SLM and PTS with One IFFT Block in Wireless MC-CDMA Communication Systems

... Besides, multi-carrier (MC) transmission technique has many advantages such as high bandwidth efficiency, excellent frequency diversity, and high speed parallel ...

5

Digital adaptive carrier phase estimation in multi level phase shift keying coherent optical communication systems

Digital adaptive carrier phase estimation in multi level phase shift keying coherent optical communication systems

... international communication infrastructures ...fiber communication systems can be significantly degraded by the transmission impairments, such as chromatic dispersion (CD), polarization mode ...

6

A time frequency localized signal basis for multi carrier communication

A time frequency localized signal basis for multi carrier communication

... enable communication. The frequencies useful for wireless communication range from about 30kHz to 300GHz, referred to as the ...Cisco Systems, presented by Morgan Stanley, forecasts a 66 times ...

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A resource allocation approach to control 
		interference in Multi  Carrier DS CDMA systems

A resource allocation approach to control interference in Multi Carrier DS CDMA systems

... ISI multi-carrier modulation is used by both schemes to condense the symbol rate and amount of ISI per ...a Multi-carrier –DS-CDMA (MC- DS-CDMA) mobile communication system is ...

8

Design of Space-Time Coded Single-Carrier and Multi-Carrier MIMO-CDMA systems

Design of Space-Time Coded Single-Carrier and Multi-Carrier MIMO-CDMA systems

... antenna communication systems, in these systems multiple access interference mitigation at the receiver via multi-user beam forming and space-time modulation and coding for MIMO systems ...

5

Design, characterisation and performance assessment issues of multi-carrier CDMA exploiting higher order PSK/QAM formats for future wireless systems

Design, characterisation and performance assessment issues of multi-carrier CDMA exploiting higher order PSK/QAM formats for future wireless systems

... multi­ carrier Code Division Multiple Access (CDMA) communication ...of multi-carrier CDMA with higher order Phase Shift Keying (PSK) and Quadrature Amplitude Modulation (QAM) mapping has been ...

185

Adaptive modulation and rate coding multi carrier code division multiple 
		access technique for 4G mobile communication systems

Adaptive modulation and rate coding multi carrier code division multiple access technique for 4G mobile communication systems

... mobile communication requires 100 Mbps data rate, video and audio streaming, asymmetric, multiple access, adaptive modulation and code rate, dynamic packet arrangement, adaptive antenna and IPv6 utilization ...

5

Resource management issues for multi carrier relay enhanced systems

Resource management issues for multi carrier relay enhanced systems

... The in-band resource partitioning has, however, also several drawbacks. First of all, communication on both the backhaul and access links is not continuous in time, thus additional forwarding delay is introduced. ...

18

PAPR Reduction Using PSO-GSA Tuned PTS Techniques in MC-CDMA System

PAPR Reduction Using PSO-GSA Tuned PTS Techniques in MC-CDMA System

... Abstract—Multi Carrier Code Division Multiple Access (MC-CDMA) is a promising technology for 4G wireless communication ...and Multi Carrier Code Division Multiple Access (MC-CDMA), ...

7

Timing and carrier synchronization in wireless communication systems: a survey and classification of research in the last 5 years

Timing and carrier synchronization in wireless communication systems: a survey and classification of research in the last 5 years

... For multi-carrier OFDM systems, PUs adopt OFDM mod- ulation and SUs make use of cyclic prefix, pilot tones of OFDM signals, or cyclostationarity to detect the ...radio-based communication ...

38

Carrier Frequency Offset Estimation for OFDM Systems Using Time/Frequency-Domain Techniques

Carrier Frequency Offset Estimation for OFDM Systems Using Time/Frequency-Domain Techniques

... chosen multi-carrier modulation technique for wireless and multimedia communication ...(WiMax) systems and HIPERLAN2 (High Performance Local Area Network) ...mobile communication is ...

7

An Improved Technique to Reduce ICI in OFDM Systems

An Improved Technique to Reduce ICI in OFDM Systems

... Orthogonal Frequency Division Multiplexing (OFDM) modulation scheme is an emerging trend in the field of wireless communication. OFDM promises at providing high data rate transmission while maintaining spectral ...

7

Effect of Cyclic Prefix on OFDM Signal

Effect of Cyclic Prefix on OFDM Signal

... a multi-carrier scheme used in modern broadband wire- less communication systems to transmit data over a number of orthogonal ...single carrier modulated with all the data to be sent, ...

6

Analytical estimation in differential optical transmission systems influenced by equalization enhanced phase noise

Analytical estimation in differential optical transmission systems influenced by equalization enhanced phase noise

... fiber communication systems will be degraded significantly due to the EEPN, with the increment of fiber dispersion, LO laser linewidths, modulation levels, symbol rates and system bandwidths ...WDM ...

6

Performance measurement of Hermite based multi carrier communication

Performance measurement of Hermite based multi carrier communication

... The main research question was accompanied by the question: “How well is its spectral efficiency compared to e.g. OFDM?” Under the same circumstances, an OFDM system with a rectangular symbol grid (optimal for the OFDM ...

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Improved OFDM by cancellation carrier frequency offset in GFDM based on multi-carrier modulation for future machine to machine systems

Improved OFDM by cancellation carrier frequency offset in GFDM based on multi-carrier modulation for future machine to machine systems

... Due to its attractive properties, generalized frequency division multiplexing is recently being discussed as a candidate waveform for the fifth generation of wireless communication systems (5G). generalized ...

6

On the Characteristic of Orthogonality for Multi Carrier Based Systems

On the Characteristic of Orthogonality for Multi Carrier Based Systems

... The dominate factors caused by reasons of losing the orthogonality in fading channel including FBC (fading branch correlation), CFO (carrier frequency offset), and even the CPN (carrier phase noise) are ...

5

Scalar Wavelet packet based multi-user Cognitive Radio Transceiver

Scalar Wavelet packet based multi-user Cognitive Radio Transceiver

... reliable communication [1]. Even though OFDM based systems have been proposed to be the most promising candidate for CR transmission [2]-[5], recent research work propose wavelet based schemes to be an ...

7

A performance of a new hybrid PTS CCPAB 
		PAPR reduction technique in OFDM Transmitters

A performance of a new hybrid PTS CCPAB PAPR reduction technique in OFDM Transmitters

... Many techniques have been developed to reduce performance degradation resulting from the PAPR problem that is inherent in the transmitter of OFDM systems;however, each technique has its advantages and ...

10

Performance Comparison Analysis between Multi FFT OFDM for Power Line Carrier Communication

Performance Comparison Analysis between Multi FFT OFDM for Power Line Carrier Communication

... The communication over Power Line is not so new when we are concerned about generation, transmission or deliverance of power but here our main concern is control and management of power rather than transmission or ...

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