space-time differential modulation
Performance Evaluation of Spatial Modulation via Numerical Simulations
... Spatial Modulation (SM) is a recently developed low-complexity Multiple- Input Multiple-Output scheme that jointly uses antenna indices and a conventional constellation set to convey ...spatial modulation ...
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Differential space time modulation schemes for smart antenna aided generalized multicarrier DS CDMA systems
... two differential space- time processing schemes based on the principles of DSTS and DSSTS, in order to enhance the attainable performance of gen- eralized MC DS-CDMA systems operating in fast fading ...
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Differential Space Time Spreading using Four Transmit Antennas and Iteratively Detected Sphere Packing Modulation
... In this paper we proposed a novel system that exploits the ad- vantages of both iterative demapping and turbo detection [12], as well as those of the DSTS-SP scheme developed. The proposed DSTS scheme benefits from a ...
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Differential Space Time Spreading using Iteratively Detected Sphere Packing Modulation and Two Transmit Antennas
... 2 space-time block code of [2, ...the time index is removed for notational simplic- ...Euclidean space R 4 , where each of the four elements ...
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A Receiver for Differential Space Time Shifted BPSK Modulation Based on Scalar MSDD and the EM Algorithm
... D[k] ∈ U represents a hypothesis for the data symbol D[k], C[k − 1] ∈ V represents a hypothesis for transmitted sym- bol C[k − 1], and | · | denotes the magnitude of a com- plex vector. Since I is actually independent of ...
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A Simple Differential Modulation Scheme for Quasi Orthogonal Space Time Block Codes with Partial Transmit Diversity
... Orthogonal space-time block codes (O-STBCs) were reported in [1, 2], aiming at achieving maximum diversity ...quasi-orthogonal space- time block codes (QO-STBCs) has been proposed in [3], ...
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Iteratively Decoded Irregular Variable Length Coding and Sphere Packing Modulation Aided Differential Space Time Spreading
... The above-mentioned STBC and STS schemes use coherent detec- tion, which requires channel estimation at the receiver. In practice, the Channel Impulse Response (CIR) of each link between each transmit and receive antenna ...
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Differential Detection of Space Time Spreading with Two Transmit Antennas
... for space-time spreading with two transmit antennas is ...amplitude modulation (QAM) signals are ...speeds, modulation methods, and numbers of receive antennas is studied through ...
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Differential Space-Time Coding Scheme Using Star Quadrature Amplitude Modulation Method
... Differential space-time coding (DSTC) has received much interest as it obviates the requirement of the channel state information at the receiver while maintaining the desired properties of ...
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Differential Space Time Block Code Modulation for DS CDMA Systems
... new modulation scheme to improve the performance of DS-CDMA systems in fast time-dispersive fading ...erential space-time block code modulation for DS-CDMA (DSTBC-CDMA) ...new ...
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Adaptive Differential Space Time Spreading Assisted Turbo Detected Sphere Packing Modulation
... In this contribution, we propose a novel adaptive DSTS-SP aided technique for supporting a wide range of bit rates, where the trans- mission of data from the four antennas is adapted by activating two different ...
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Linear Equalization Combined with Multiple Symbol Decision Feedback Detection for Differential Space Time Modulation
... DSTM system when frequency-selective fading occurs. An equalizer combined with the differential detection is pro- posed by exploiting the structure of the DSTM and its differ- ential detection. The equalizer is to minimize ...
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Dual Inverter Control Strategy for Open Ended Winding Motor Drive Applications
... changed space vector modulation methodology is embraced to dispose of the undesirable voltage levels during the dead-time interims, in this manner enhanced the waveform quality for this floating ...
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Performance Analysis of Iteratively Decoded Variable Length Space Time Coded Modulation
... 3D space between the two EXIT planes becomes wider, since the decoders exploit the additional a priori probabilities given by Equation 7, when the source is ...
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A Turbo Detection and Sphere Packing Modulation Aided Space Time Coding Scheme
... Iterative decoding of spectrally efficient modulation schemes was considered by several authors [1], [9]–[11]. In [12], the em- ployment of the turbo principle was considered for iterative soft demapping in the ...
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Finite Element Method for a Kind of Two Dimensional Space Fractional Diffusion Equation with Its Implementation
... symmetric space-fractional diffusion equation in which the space fractional derivatives are defined in Riesz potential ...in time and Galerkin finite element method in ...
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Fuzzy inference system based adaptive modulation scheme for optical wireless communication
... Constructing the rules using the graphical Rule Editor interface is fairly self-evident. Based on the descriptions of the input and output variables defined with the FIS Editor, the Rule Editor for Adaptive DAPPM ...
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Development Of Space Vector Modulator For 3-Phase Voltage Source Inverter (VSI)
... this modulation technique there have a best advance pulse width modulation (PWM) method which is space-vector pulse width modulation ...width modulation (SPWM), because it provide ...
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Robust Coding Methods For Space-Time Wireless Communications
... di®erential modulation techniques for multi-antenna communications [21, 33, 64, ...di®erential modulation based on space-time block codes with a group ...
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Adaptive differential amplitude pulse position modulation technique (DAPPM) using fuzzy logic for optical wireless communication channels
... particular modulation technique becomes the most important consideration is the different signaling schemes which are usually compared in terms of the required average optical power (or signal to noise ratio) to ...
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