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low-rate convolutional code

DESIGN OF CONVOLUTIONAL ENCODER USING 16 BIT REVERSIBLE LOGIC VEDIC MULTIPLIER

DESIGN OF CONVOLUTIONAL ENCODER USING 16 BIT REVERSIBLE LOGIC VEDIC MULTIPLIER

... of convolutional encoder using 16bit reversible logic Vedic multiplier the convolution code is used to encode using cadence tool very important for low error probability high data rate ...

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Effect of code rate variation on 
		performance of optical convolutionally coded IDMA using random and tree 
		interleavers

Effect of code rate variation on performance of optical convolutionally coded IDMA using random and tree interleavers

... of convolutional encoder Figure-4 which is low rate (1,2) encoder having two memory element shift register and two adders are taken which makes constraint length ...

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Power Aware Wireless Communication System Design for Body Area Networks

Power Aware Wireless Communication System Design for Body Area Networks

... and low power embedded techniques, Body Area Network (BAN) has opened up new frontiers in the race to provide real-time health ...for low power, high reliability applied to medical and non-medical ...

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Analysis of low rate convolutional codes 
		on optical Interleave Division Multiple Access scheme

Analysis of low rate convolutional codes on optical Interleave Division Multiple Access scheme

... system. Code-Division Multiple- Assess (CDMA) scheme has been popularly deployed, in optical platform, for attaining the higher spectrum efficiency throughout the ...using low rate convolution ...

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Channel Encoding Security Via Puncturing and Pruning

Channel Encoding Security Via Puncturing and Pruning

... higher rate and poor performance for specific channel ...a low bit error ...mother convolutional code, this results into a secret pruned trellis that legitimate users are using to perform ...

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Iterative and Adaptive Processing for Multiuser Communication Systems

Iterative and Adaptive Processing for Multiuser Communication Systems

... complexity. Low-level pilot sequences are superimposed on each users’ transmitted data to enable semi-blind channel estimation at the ...using low-rank basis expansion models which provide accurate tracking ...

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Super-Orthogonal Space-Time Turbo Transmit Diversity for CDMA

Super-Orthogonal Space-Time Turbo Transmit Diversity for CDMA

... sequence code-division multiple-access (CDMA) systems is ...technique, low-rate super-orthogonal code-spread CDMA is married with code-division transmit diversity ...turbo ...

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Reduction of Signal Power Consumption in a Digital Communication using Convolutional Code

Reduction of Signal Power Consumption in a Digital Communication using Convolutional Code

... In this section it is being discussed that what strategy was used for designing the proposed communication system. A system can be built in different ways but the important thing is to be able to justify the ideas. R. ...

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Interleaved Convolutional Code and Its Viterbi Decoder Architecture

Interleaved Convolutional Code and Its Viterbi Decoder Architecture

... Viterbi decoding algorithm consists of branch metrics calcu- lation, add-compare-select (ACS) operation, and estimation of the information sequence from the survival path informa- tion. Hamming distance (hard decision) ...

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Trajectory Gesture Recognition Using Convolutional Neural Networks in Intelligent Teaching Interface

Trajectory Gesture Recognition Using Convolutional Neural Networks in Intelligent Teaching Interface

... In order to solve the problem of low recognition rate of the trajectory gesture and poor real-time performance, we proposed a method which the Convolutional Neural Networks is used to re[r] ...

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Construction of Short-Length High-Rates LDPC Codes Using Difference Families

Construction of Short-Length High-Rates LDPC Codes Using Difference Families

... LDPC code has constant number of ones in each column (column weight) and each row (row weight) in the parity-check matrix ...the code is irregular. Code rate r is equal to k/n, which means ...

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1.
													Design and analysis of bch-rsc concatenated system with qpsk modulation technique in wireless communication

1. Design and analysis of bch-rsc concatenated system with qpsk modulation technique in wireless communication

... RS-RSC code is a concatenated code of RS code as the outer code and RSC code as the inner code. Since these two codes have different characteristic in terms of handling the ...

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Novel PAPR Reduction Technique Based On Conventional Partial Transmit Sequence (PTS)

Novel PAPR Reduction Technique Based On Conventional Partial Transmit Sequence (PTS)

... Orthogonal Frequency Division Multiple xing (OFDM ) is an attractive technique for Ultra- wideband wireless communicat ion applications. Ho wever, a we ll- known problem of OFDM is the casual occurrence of high peak-to- ...

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Comparison Study between 1/2 Rate And 2/3 Rate Convolutional Encoder with Viterbi Decoder

Comparison Study between 1/2 Rate And 2/3 Rate Convolutional Encoder with Viterbi Decoder

... Concatenated Codes was first introduced in 1965 by Forney in a bid to resolve a theoretical issue but they enjoyed a wide usage in the 1970’s for space communications. They are basically error-correcting codes which are ...

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Blind recovery of k/n rate convolutional encoders in a noisy environment

Blind recovery of k/n rate convolutional encoders in a noisy environment

... correcting code is mandatory. This error correcting code allows one to obtain good immunity against channel ...transmission rate is decreased due to the redundancy introduced by a cor- recting ...As ...

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IMPLEMENTATION OF VITERBI DECODER WITH VARIABLE CODE RATE

IMPLEMENTATION OF VITERBI DECODER WITH VARIABLE CODE RATE

... ABSTRACT: It is well known that data transmissions over wireless channels are affected by attenuation, distortion, interference and noise, which affect the receiver’s ability to receive correct information. Convolution ...

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Design And Implementation Of Coding Techniques For Communication Systems Using Viterbi Algorithm

Design And Implementation Of Coding Techniques For Communication Systems Using Viterbi Algorithm

... the rate of growth of the "best" path metric, a simpler way to do this is to monitor a single location or "state" and watch it pass "upward" through say four discrete levels within the ...

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PERFORMANCE EVALUATION OF WIMAX SYSTEM USING CONVOLUTIONAL PRODUCT CODE (CPC) A. Ebian, M. Shokair, and K. H. Awadalla

PERFORMANCE EVALUATION OF WIMAX SYSTEM USING CONVOLUTIONAL PRODUCT CODE (CPC) A. Ebian, M. Shokair, and K. H. Awadalla

... In this work, the same technique is used for coding the message, except we use nonrecursive nonsystematic convolutional encoder instead of recursive systematic convolutional encoders for coding both rows ...

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A}rea Efficient Turbo Encoder for Wireless Applications on {FPGA

A}rea Efficient Turbo Encoder for Wireless Applications on {FPGA

... concatenated convolutional codes known as turbo codes plays a crucial ...Concatenated Convolutional Code Encoder has been proposed in this ...

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Hybrid ARQ type I based on convolutional code

Hybrid ARQ type I based on convolutional code

... binary convolutional encoder with constraint length K = 3, k = 1, n = 2, which is shown in Figure ...this code are more conveniently given in octal form as (5, ...

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