turbo space-time codes
Concatenated Space Time Block Codes and TCM, Turbo TCM Convolutional as well as Turbo Codes
... Figure 5 shows the a coding gain versus the number of iterations and b the coding gain versus complexity for the TC2,1,3, TC2,1,4 and TC2,1 ,5 codes, where the coding parameters used are[r] ...
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Space Time Turbo Coded Modulation: Design and Applications
... trellis codes, building an equivalent recur- sive code from a nonrecursive convolutional code is straight- forward and is done by closing the feedback from the out- put to the input of the encoders block ...the ...
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Adaptive Wireless Transceivers: Turbo Coded, Turbo Equalised and Space Time Coded TDMA, CDMA and OFDM Systems
... In the early phase of research more emphasis was dedicated to the system aspects of adaptive modulation in a narrow-band environment. A reliable method of transmitting the modulation control parameters was proposed by ...
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Space Time Codes and Concatenated Channel Codes for Wireless Communications
... half-rate turbo codes, such as the ( ) arrangement, it is better to protect the parity bits more ...half-rate turbo codes, such as the ( ) and ( ) schemes, better performance is achieved by ...
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Comparative Study of Concatenated Turbo Coded and Space Time Block Coded as well as Space Time Trellis Coded OFDM
... In Figure 2, we show our FER performance comparison between the various 2 BPS e ective throughput schemes, namely the 4PSK space-time trellis codes and the spacetime block code G2 concat[r] ...
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Layered Steered Space Time Codes Using Iterative Detection
... tion between the inner unity-rate code’s (URC) decoder and the outer convolutional code’s decoder is employed and analysed using EXIT charts. The URC is capable of completely eliminating the system’s error-floor as well ...
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Space Time Turbo Trellis Coded Modulation for Wireless Data Communications
... a space-time turbo trel- lis coded modulation ...constituent codes in a parallel concatenation struc- ture, benefiting from interleaver gain and iterative decod- ...ST turbo TCM is less ...
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Turbo Detected Unequal Protection MPEG 4 Audio Transceiver Using Convolutional Codes, Trellis Coded Modulation and Space Time Trellis Coding
... At the receiver, we employ N r = 2 receive antennas and the received signals are fed to the iterative decoders for the sake of estimating the audio bit sequences in both class-1 and class- 2, as seen in Figure 1. The ...
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Super-Orthogonal Space-Time Turbo Transmit Diversity for CDMA
... This layered ST architecture forms the basis for the class of orthogonal decomposable coded ST codes presented in this paper. The Alamouti ST block codes are members of this class of codes [3, 6]. ...
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Turbo Equalization of Serially Concatenated Systematic Convolutional Codes and Systematic Space Time Trellis Codes
... Bpa 2 concerning the systematic bit of the convolutional codeword and the combined channel and extrinsic LLRs Gip 0 of the systematic STT coded symbol generated by the channel equalizer [r] ...
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Turbo Coding, Turbo Equalisation and Space Time Coding
... The decoder of Figure 4.3 operates iteratively, and in the first iteration the first compo- nent decoder takes channel output values only, and produces a soft output as its estimate of the data bits. The soft output from ...
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Turbo Coded Adaptive Modulation Versus Space Time Trellis Codes for Transmission over Dispersive Channels
... TBCH codes in conjunction with fixed modulation-based sys- tems for both low- and high-channel interleaver ...of turbo codes in the context of ...the time of writing no analytical formula ...
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Image Transmission over Space Time Coded MIMO OFDM System with Punctured Turbo Codes
... The Fig.1 gives the block diagram of the progressive compressed image transmission system. As the output of the SPIHT encoder is progressive, the SPIHT embedded bit stream send to the FEC tech. PTC, resulting bits ...
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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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Comparative Study of Turbo Equalization Schemes using Convolutional, Convolutional Turbo, and Block Turbo Codes
... the turbo-equal- ized CC systems transmitting over the dispersive Gaussian and Rayleigh fading channels of (1) and (2), respectively, approach the nondispersive AWGN ...the turbo-coded CT and BT schemes ...
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Turbo Codes―A New PCCC Design
... the value of the primary information. The final stage of the decoding procedure is conducted by the Hard Deci- sion section. The APP decoder provides one input of the encoder’s log-likelihood input and one input of the ...
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Analysis and design of turbo like codes
... threshold of random codes − union bound threshold of random codes − new bound binary input channel capacity threshold of RA codes −union bound threshold of RA codes − new bound... AWGN R[r] ...
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Multi non binary turbo codes
... This work opens a new horizon for TCs: using of the multi-non-binary convolutional encoders by generalizing the concepts of multi-binary and non-binary codes. The sample of MNBTC presented in this paper ...
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The Super Trellis Structure of Turbo Codes
... The turbo codes have an identical number of 4096 super states in conjunction with both interleavers, which explains, why their coding performance is fairly ...the turbo code with the 333 2 3 ...
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Turbo Codes with Golden Section Interleaver
... In data networks errors are introduced by several noise sources. Interleavers are simple devices that permute sequences, they are widely used for improving error correction capabilities of coding schemes over bursty ...
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