1/3 convolutional codes
Comparative Study of Turbo Equalization Schemes using Convolutional, Convolutional Turbo, and Block Turbo Codes
... block-turbo codes, namely Bose–Chaudhuri–Hocquenghen turbo codes, convolutional codes, and convolutional turbo codes having high code rates, such as = 3 4 and = 5 6, over ...
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FPGA Prototyping of RNN Decoder for Convolutional Codes
... block codes decoding [2, 3] and then for convolutional [4–7] and turbo codes decoding ...decode convolutional codes of a small code rate, and the developed recurrent artificial ...
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A new class of parallel data convolutional codes
... Fig. 1 depicts the CRSC code adopted in the DVBRCS stan dard [6]. The data sequence to be encoded consists of a block of N bits grouped into M couples (N = 2M ). The incoming data is first demultiplexed and fed ...
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Reliable Transmission Of Information Over Channels Using Cryptography And Convolutional Codes
... A convolutional encoder is often seen as a finite state ...Figure 3. A solid line corresponds to input 0, a dotted line – to input 1 (note that encoder states are designated in such a way that the ...
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On Locally Invertible Encoders and Multidimensional Convolutional Codes
... the 1-D case (see Theorem 3.6.2), minimal-basic m-D convolutional encoders have not been characterized [10], and a straightforward algebraic algorithm [30, ...that 1-D locally invertible encoders are ...
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A Systematic Approach to Modified BCJR MAP Algorithms for Convolutional Codes
... of codes, called turbo codes, which have demonstrated performance close to the theoretical limit predicted by information the- ory ...turbo codes, a soft-input soft-output (SISO) MAP algorithm is ...
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An efficient algorithm for the reconstruction of punctured convolutional codes
... high-rate convolutional code is by puncturing a low rate (n, 1) code, called the mother ...punctured convolutional code is obtained through a periodic deletion of encoded symbols generated from the ...
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Low complexity high throughput decoding architecture for convolutional codes
... The 57-64 GHz unlicensed bandwidth around 60 GHz can accommodate multi-gigabits per second (multi- Gbps) wireless transmission in a short range. There are several standards for 60 GHz systems, such as Wire- lessHD ...
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A new computational decoding complexity measure of convolutional codes
... Convolutional codes are widely adopted due to their capacity to increase the reliability of digital communica- tion systems with manageable encoding/decoding com- plexity ...A convolutional code can ...
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Generalized Punctured Convolutional Codes with Unequal Error Protection
... In several applications of digital transmission (e.g., video [1], images [2], voice [3], and data [4]), the importance of di ff erent bits in the input sequence of the channel encoder often varies and ...
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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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The Performance of LDPC Convolutional Codes – A Quantitative Analysis
... block codes and time invariant convolutional codes whereas JFZ method uses a matrix based unwrapping procedure to obtain the H matrix of a periodically time varying convolutional code from the ...
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Hybrid ARQ type I based on convolutional code
... a convolutional code for packet transmission over wireless channels was ...and 1/3) of convolutional codes on HARQ type I simulation scheme are ...
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Adaptive decoding of convolutional codes
... D 3 + D 2 + 1, D 3 + D 2 + D + 1] (19) with v = 3 path registers and corresponding syndrome former H T = [ D 3 + D 2 + D + 1, D 3 + D 2 + 1 ] T (20) The ...
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Hybrid Concatenated Convolutional Code for Deep Space Mission
... concatenated codes was first noticed by Forney in ...of convolutional codes can be classified into three ...concatenated convolutional codes (HCCC). The constituent convolutional ...
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Convolutional Codes based FCA when Combiner Function is 1-CI
... The performance of the algorithms and are described in [13, 14]. The algorithms work well when the LFSR contains few taps, but for LFSRs with many taps the algorithms fail. The reason for this failure is that for LFSRs ...
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Learning temporal information from spatial information using capsnets for human action recognition
... 3D convolutional layers to extract the fea- tures maps needed to create the capsules, which drastically increases the number of capsules and thus, the computational cost of ...
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A Novel Decoding Method for Non Binary TCM Codes
... TCM codes outperform binary TCM codes with a small increase in decoding ...TCM codes led to reduction in the effective input block length, since each m bits of binary information correspond to one ...
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Trade-off among the different PAPR Reduction Techniques for OFDM Signals used in Wireless Communication
... Irrespective of the good performance of the OFDM systems the main problem associated with the OFDM transmitter and receiver is the Peak-to-Average Power ratio (PAPR) [1]. Practically during the transmission the ...
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FPGA implementation of trellis decoders for linear block codes
... It can already be seen, that the recursion steps are im- portant in both the VA and the max-log-MAP. It consists of add-compare-select (ACS) operations in Eq. (1) and requires permutations of state metrics ...
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