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multicarrier-CDMA

Fractionally Spread Multicarrier CDMA: A Multiple Access Scheme for Various Wireless Channels

Fractionally Spread Multicarrier CDMA: A Multiple Access Scheme for Various Wireless Channels

... spread multicarrier CDMA arrangement, i.e., the FS MC-CDMA scheme, which employs concatenated T- domain spreading for improving the achievable performance, when communicating over wireless channels ...

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Genetic Algorithm Assisted Multiuser Detection for Asynchronous Multicarrier CDMA

Genetic Algorithm Assisted Multiuser Detection for Asynchronous Multicarrier CDMA

... Multicarrier CDMA (MC-CDMA) [1–3] is a novel transmission technique, which combines DS-CDMA and Orthogonal Fre- quency Division Multiplexing (OFDM) ...

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Generalized Multicarrier CDMA: Unification and Linear Equalization

Generalized Multicarrier CDMA: Unification and Linear Equalization

... GMC- CDMA under variable number of single-rate active users. For a GMC-CDMA system with multirate capabilities, the interested reader is referred to ...group-orthogonal multicarrier CDMA ...

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PERFORMANCE ENHANCEMENT OF MULTICARRIER-CDMA WITH PAPR

PERFORMANCE ENHANCEMENT OF MULTICARRIER-CDMA WITH PAPR

... MC-CDMA is the multicarrier CDMA system which is the combination of CDMA and OFDM system.MC-CDMA is the latest wireless communication system used in mobile communication mainly. Because ...

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On Intercell Interference and Its Cancellation in Cellular Multicarrier CDMA Systems

On Intercell Interference and Its Cancellation in Cellular Multicarrier CDMA Systems

... The handling of intercell interference at the cell border area is a strong demand in future communication systems to guarantee effi- cient use of the available bandwidth. Therefore, this paper focuses on the application of ...

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Design of a Baseband Transceiver for Multicarrier CDMA Communications

Design of a Baseband Transceiver for Multicarrier CDMA Communications

... fading. Multicarrier code-division multiple access (MC-CDMA) is a technique that combines the advantage of multicarrier modulation with that of code-division multiple access (CDMA) to offer ...

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Adaptive constrained CM based multicarrier CDMA receivers in multipath fading channels

Adaptive constrained CM based multicarrier CDMA receivers in multipath fading channels

... multiuser CDMA systems have been examined in many literatures, ...MC- CDMA systems were discussed merely in a few papers, ...the multicarrier systems were also proposed in [17] and [18], ...

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DOA Estimation in the Uplink of Multicarrier CDMA Systems

DOA Estimation in the Uplink of Multicarrier CDMA Systems

... The main contribution of this paper is a method for esti- mating the DOAs of all active users in an MC-CDMA sce- nario characterized by multiple resolvable paths. As men- tioned previously, the major di ffi culty ...

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Multicarrier DS CDMA: A Multiple Access Scheme for Ubiquitous Broadband Wireless Communications

Multicarrier DS CDMA: A Multiple Access Scheme for Ubiquitous Broadband Wireless Communications

... sequence CDMA (SC DS-CDMA), multicarrier CDMA (MC-CDMA), and multicarrier DS- CDMA (MC ...DS- CDMA and MC-CDMA exhibit certain limita- tions that are hard to ...

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IJCSMC, Vol. 5, Issue. 7, July 2016, pg.67 – 73 A Review on MC-CDMA on Mobile Environment

IJCSMC, Vol. 5, Issue. 7, July 2016, pg.67 – 73 A Review on MC-CDMA on Mobile Environment

... implementation and simple receiver design are especially important in wideband applications, where the data rate and consequently the processing burden are very high. However, sinusoid waveforms which are used as the ...

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Multicarrier Block Spread CDMA for Broadband Cellular Downlink

Multicarrier Block Spread CDMA for Broadband Cellular Downlink

... so-called multicarrier block-spread- (MCBS-)CDMA transceiver that preserves the orthogonality among users and guarantees symbol detection, re- gardless of the underlying frequency-selective fading ...

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A Proposed Turbo Coded Wavelet Packet Modulation based MC CDMA

A Proposed Turbo Coded Wavelet Packet Modulation based MC CDMA

... based Multicarrier CDMA system has been proposed to enhance the bit error rate and complexity of the conventional MC-CDMA which based on Fast Fourier Transform FFT over different channel ...MC- ...

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A Unified Approach to the Analysis of Multicarrier DS CDMA over Nakagami $M$ Fading Channels

A Unified Approach to the Analysis of Multicarrier DS CDMA over Nakagami $M$ Fading Channels

... of CDMA and orthogonal fre- quency division multiplexing (OFDM) schemes - which is referred to as multicarrier CDMA (MC-CDMA) - has drawn a lot of atten- tion [1, 2, 3, 4, ...

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Joint Impact of Frequency Synchronization Errors and Intermodulation Distortion on the Performance of Multicarrier DS-CDMA Systems

Joint Impact of Frequency Synchronization Errors and Intermodulation Distortion on the Performance of Multicarrier DS-CDMA Systems

... In this paper, we have evaluated the BER of MC-DS- CDMA downlink systems subject to both CFO and IMD in frequency-selective Rayleigh fading channels. The BER anal- ysis, which is quite accurate in many conditions, ...

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Blind Joint Soft Detection Assisted Slow Frequency Hopping Multicarrier DS CDMA

Blind Joint Soft Detection Assisted Slow Frequency Hopping Multicarrier DS CDMA

... In this contribution, we consider the above FH/MC DS-CDMA system, when using SFH and BPSK data modula- tion. The system operates in a multipath fading environment, and a RAKE receiver structure with maximum-ratio ...

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Blind Soft Detection Assisted Frequency Hopping Multicarrier DS CDMA Systems

Blind Soft Detection Assisted Frequency Hopping Multicarrier DS CDMA Systems

... 3, for the SFH/MC DS-CDMA system using a constant-weight code CQ; 2v; U in order to activate the subcarriers and using a receiver without the explicit knowledge of the FH pattern - exce[r] ...

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Performance of Generalized Multicarrier DS CDMA over Nakagami $m$ Fading Channels

Performance of Generalized Multicarrier DS CDMA over Nakagami $m$ Fading Channels

... From 1991 to 1993, he was a Lecturer in the Department of Electrical Engineering, East-China Jiaotong University, China. From 1993 to 1997 he was with the Modern Communications Research Institute, Northern Jiaotong ...

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Software Defined Radio Assisted Adaptive Broadband Frequency Hopping Multicarrier DS CDMA

Software Defined Radio Assisted Adaptive Broadband Frequency Hopping Multicarrier DS CDMA

... Above we have summarized the philosophy of a number of ART schemes, which can be employed in adaptive FH/MC DS-CDMA-based wireless communication systems. An S-ART scheme requires a certain level of transmitted ...

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A Multicarrier DS CDMA System Using Both Time Domain and Frequency Domain Spreading

A Multicarrier DS CDMA System Using Both Time Domain and Frequency Domain Spreading

... As shown in Fig.1 and (1), each TF-domain spread MC DS- CDMA signal is spread by two signature sequences, one in the context of the T-domain and another one in the F-domain. The employment of concatenated ...

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Recital on Multicarrier Communications: Space Time Coded versus Adaptive OFDM/MC CDMA

Recital on Multicarrier Communications: Space Time Coded versus Adaptive OFDM/MC CDMA

... In these systems the L different users' transmitted signals are separated at the base-station BS with the aid of their unique, user-specific spatial signamre, which is constituted by the[r] ...

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