Time codes
Pragmatic Space-Time Codes for Cooperative Relaying in Block Fading Channels
... approach of [25, 27]. Our proposed “pragmatic” approach uses a low-complexity architecture for STCs where the code components are built by the concatenation of a binary convolutional encoder and binary phase shift keying ...
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Space Time Codes for Wireless Optical Communications
... In atmospheric optical communication, lognormal fading arising from refractive-index turbulence can make the recov- ery of a transmitted signal extremely difficult at the receiver. As a result, the receiver must have a ...
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Power Allocation Strategies for Distributed Space-Time Codes in Amplify-and-Forward Mode
... transmit power during the second phase, distributed space- time codes under amplify and forward led to opportunistic relaying. Therefore, the whole transmission power during the second phase is transmitted ...
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Layered Steered Space Time Codes Using Iterative Detection
... Abstract— This paper presents a novel multifunctional multiple-input multiple-output (MIMO) scheme that combines the benefits of the Vertical Bell Labs Layered Space-Time (V- BLAST) scheme, of Space-Time ...
5
Cooperative space time codes with network coding
... communications. In this scheme, the cooperating users using space-time codes are assisted by the availability of a fixed relay node proposed for the future wireless networks. We compare our scheme with ...
8
A Novel Decoder for Unknown Diversity Channels Employing Space Time Codes
... Space time coding schemes have been shown to significantly improve the performance of communication over fading channels when multiple antennas are available at transmit- ter and ...space time codes ...
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Space Time Codes and Concatenated Channel Codes for Wireless Communications
... STB codes is given in Section IV and channel-coded space–time codes in Section ...convolution codes and convolutional coding as well as Bose–Chaudhuri–Hocquenghem (BCH) coding- based turbo ...
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A Design Method of Noncoherent Unitary Space Time Codes
... We generalized an constructing method of noncoherent unitary space time codes (N-USTC) over Rayleigh flat fading channels. A family of N-USTCs with T symbol peroids, M transmit and N receive antennas was ...
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Precoding design for space time codes and relay selection with a novel scheme for multiple relay systems
... AF: Amplify-and-forward; AWGN: Additive white Gaussian noise; BPSK: Binary phase-shift keying; CSI: Channel state information; DF: Decode-and-forward; LLR: Log-likelihood ratio; MIMO: Multiple-input multiple-output; ...
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Single Carrier Frequency Domain Equalization with Space Time Trellis Codes
... The performance of any wireless communication system is a measure of the percentage number of bits in error. The performance index of space-time-code is determined by the BER performance: a measure of the distance ...
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Design & Analysis of Space Time Trellis Codes for Different Fading Channels
... of codes called the Space–Time codes for transmission using multiple transmit antennas over Rayleigh or Rician wireless ...ofspace–time codes were also introduced. The performance of ...
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Turbo Coded Adaptive Modulation Versus Space Time Trellis Codes for Transmission over Dispersive Channels
... Finally, in Section IV-C, we compiled all the results and com- pared them to the performance of the proposed turbo-coded AQAM system. Initially, we showed that the uncoded AQAM system outperforms the space–time ...
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A Simple Massive MIMO Scheme based on the Overlap of STBC
... space time codes is proposed. By overlapping the Alamouti codes in spatial dimension and decoding them with the MMSE-BLAST decoder, it is possible to achieve better gain in terms of diversity and ...
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A Survey on MMSE Detector Using Space Time Diversity Technique
... Space-time codes use spatial varying qualities at the transmitter and/or the beneficiary, which structures Multiple Input Multiple Output (MIMO) channels ...in time range is intersymbol interference ...
5
Loop tiling in large scale stencil codes at run time with OPS
... There are a number of compilers focused on applying tiling to stencil computations such as Pochoir [26], image processing workflows such as Polymage and Halide [27], [28], and more generally to computations covered by ...
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Interference-free space-time block codes with directional beamforming for future networks
... block codes (STBC) [6] are MIMO design techniques with the potential of increasing received data rate and reducing the bit error ratio (BER) especially when operated with ...
6
Performance Analysis of Mimo-Wimax System Using Space Time Block Codes
... This block is used for space time diversity coding which is used to reduce the effect of noise and increase the bandwidth by reducing the Bit Error Rate. Alamouti [13] STBC is one of most important technique to ...
6
Iterative Detection of Diagonal Block Space Time Trellis Codes, TCM and Reversible Variable Length Codes for Transmission over Rayleigh Fading Channels
... Abstract – Iterative detection of Diagonal Block Space Time Trellis Codes (DBSTTCs), Trellis Coded Modulation (TCM) and Reversible Variable Length Codes (RVLCs) is proposed. With the aid of efficient ...
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Semisimple group codes and dihedral codes
... We consider codes that are given as two-sided ideals in a semisimple finite group algebra 𝔽 𝑞 𝐺 defined by idem-1. potents constructed from subgroups of 𝐺 in a natural way and compute th[r] ...
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Turbo Detection of Space time Trellis Coded Constant Bit Rate Vector Quantised Videophone System using Reversible Variable Length Codes, Convolutional Codes and Turbo Codes
... In this treatise we characterise the achievable performance of a proprietary video transmission system, which employs a Constant Bit Rate (CBR) video codec that is concatenated with one of of three error correction ...
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