differential space-time modulation
Differential space time modulation schemes for smart antenna aided generalized multicarrier DS CDMA systems
... Abstract—Differential space-time modulation (DSTM) schemes were proposed for detection without any knowledge of the Chan- nel State Information (CSI), which is an attractive feature in the ...
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Linear Equalization Combined with Multiple Symbol Decision Feedback Detection for Differential Space Time Modulation
... time modulation is briefly reviewed with the frequency- selective fading channel model in Section 2. The equalization scheme is presented under the LS criterion and the equalizer combined with the multiple ...
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Differential Space Time Spreading using Four Transmit Antennas and Iteratively Detected Sphere Packing Modulation
... novel Differential Space-Time Spreading (DSTS) scheme using four transmit antennas, which exploits the combined advantages of the differential encoding, the multi-user support capability of ...
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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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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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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
... ploying Space-Time Block Codes (STBC) [2], which was capable of achieving a substantial diversity ...as Space-Time Spreading (STS) for the downlink of Wideband Code Division Multiple Access ...
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Soft Bit Assisted Iterative AMR WB Source Decoding and Turbo Detection of Channel Coded Differential Space Time Spreading Using Sphere Packing Modulation
... [14]. Space-Time Spreading (STS) was first proposed by Marzetta ...providing space-time-coding-style spatial transmit diversity gain for CDMA systems, as detailed in Section ...
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Multiple Symbol Decision Feedback Space Time Differential Decoding in Fading Channels
... Space-time differential coding (STDC) is an effective technique for exploiting transmitter diversity while it does not require the channel state information at the receiver. However, like conventional ...
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Differential Detection of Space Time Spreading with Two Transmit Antennas
... In this section, we investigate the performance of STS with coherent and differential detection by simulations. First, we study the performance of the differential detection scheme with respect to the fading speed, where ...
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Differential Space-Time Coding Scheme Using Star Quadrature Amplitude Modulation Method
... unitary space-time coding, however, when spectrum efficiency gets higher, the performance will become worse due to the lower coding gain, which can be seen in Table I in ...unitary space-time ...
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Differential Space Time Block Code Modulation for DS CDMA Systems
... Figure 1 shows the BER comparison for D-Rake, D-Det, and D-Det-DP receivers as a function of the SNR for time- invariant fading channels when U = 7. Note that the D-Det receiver performs better than the D-Rake ...
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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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A Receiver for Differential Space Time Shifted BPSK Modulation Based on Scalar MSDD and the EM Algorithm
... bandwidth e ffi ciency is minimal for the static fading en- vironment, it can be significant for a time-varying chan- nel. As mentioned in the previous paragraph, the pro- posed receiver methodology can also be used ...
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Dual Inverter Control Strategy for Open Ended Winding Motor Drive Applications
... flow two isolated dc sources are utilized for traditionaldual inverter topology, expanding the size and weight of the system. In this paper a dual two- level inverter is displayed which lessens the size and weight of the ...
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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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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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Robust Coding Methods For Space-Time Wireless Communications
... full-diversity space-time block codes with bit-interleaved coded ...bit-interleaved space-time coded modulation ...best space-time trellis codes of comparable ...
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Fuzzy inference system based adaptive modulation scheme for optical wireless communication
... a modulation technique is one of the key technical decisions in the design of any communication ...particular modulation technique is assessed are highlighted optical power efficiency and bandwidth ...
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Performance Analysis of Iteratively Decoded Variable Length Space Time Coded Modulation
... Shannon’s separation theorem stated that source coding and channel coding is best carried out in isolation [1]. However, this theorem was formulated in the context of potentially infinite-delay, lossless entropy-coding ...
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