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rate-3/4 convolutional code

Implementation Of High Throughput And Area Efficient Hard Decision Viterbi Decoder Using Verilog Hdl

Implementation Of High Throughput And Area Efficient Hard Decision Viterbi Decoder Using Verilog Hdl

... a rate-3/4 convolutional code used in a TCM system shows that compared with the full trellis VD, the precomputation architecture reduces the power consumption without performance loss, ...

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													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

... error rate (BER) performance is typically improved by choosing longer and more complex codes ...multiple convolutional codes was introduced [3], and was used with Soft Output Viterbi Algorithm ...

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FPGA Implementation of Baseband Modulation for Transceiver of 802.16e (Wi- (MAX)

FPGA Implementation of Baseband Modulation for Transceiver of 802.16e (Wi- (MAX)

... of Convolutional Encoder and Viterbi Decoder for an OFDM based wireless MAN standard, ...of code rate = ½ and constraint length = 3, we have obtained a data rate as high as 211 Mbps on ...

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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 ...is 3[5,7] which is taken ...

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High-rate systematic recursive convolutional encoders: minimal trellis and code search

High-rate systematic recursive convolutional encoders: minimal trellis and code search

... turbo code configuration is the parallel con- catenation of two systematic recursive constituent convo- lutional encoders of rate 1/2 connected via an interleaver, resulting in a code of rate ...

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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

... correction code removes errors induced in communication and make possible error free ...system. Convolutional code corrects both type of errors random and burst and used in deep space and wireless ...

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Hybrid ARQ type I based on convolutional code

Hybrid ARQ type I based on convolutional code

... a convolutional code for packet transmission over wireless channels was ...bit-error rate (BER) performance, according to the different constraint lengths (K=3 and K=4) and code ...

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Power Aware Wireless Communication System Design for Body Area Networks

Power Aware Wireless Communication System Design for Body Area Networks

... either code. For BCH code, BCH (31,19) code has better power efficiency and consumes less resources than BCH (63,51) ...to convolutional code, ...conv.(2,1,3) code also offers ...

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Louisiana Civil Code – Code civil de Louisiane: Preliminary Title; Book III, Titles 3, 4 and 5

Louisiana Civil Code – Code civil de Louisiane: Preliminary Title; Book III, Titles 3, 4 and 5

... Il y a erreur sur la cause lorsqu’elle porte sur la nature du contrat, ou sur la chose objet du contrat ou sur une qualité substantielle de cette chose, ou la personne ou les qualit[r] ...

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Convolution of Barker and Golay Codes for Low Voltage Ultrasonic Testing

Convolution of Barker and Golay Codes for Low Voltage Ultrasonic Testing

... described code sequence and are used as complementary pairs whose auto-correlation coefficients sum to zero in most ...Golay code and Barker code ...

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Articles 3 and 4 of the Uniform Commercial Code in an Electronic Fund Transfer Environment

Articles 3 and 4 of the Uniform Commercial Code in an Electronic Fund Transfer Environment

... Thus articles 3 and 4 of the Uniform Commercial Code, with contractual modifications by the parties and appropriate changes in Federal Reserve and Automated Clearing [r] ...

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Non Iterative Joint Channel Equalisation and Channel Decoding

Non Iterative Joint Channel Equalisation and Channel Decoding

... Figure 3: Comparison of iterative versus non-iterative joint equalisation/decoding over a two-path dispersive Gaussian channel, when using a convolutional code having the following param[r] ...

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Iterative and Adaptive Processing for Multiuser Communication Systems

Iterative and Adaptive Processing for Multiuser Communication Systems

... For the multiple-access IDMA system developed in this chapter, the receiver embeds a NKF-based channel estimator/equalizer into the turbo multiuser detection framework. This approach will be shown to be considerably more ...

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Adaptive OFDM Techniques for Wireless ATM and UMTS Systems: Blind Modem Mode Detection and Turbo Coding

Adaptive OFDM Techniques for Wireless ATM and UMTS Systems: Blind Modem Mode Detection and Turbo Coding

... Figure 4: Probability of erroneous bliiid modulation scheme detection using the proposed parallel trellis algorithm with a I< = 7 convolutional code over an AWGN channel... lises, whose [r] ...

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Interleaved Convolutional Code and Its Viterbi Decoder Architecture

Interleaved Convolutional Code and Its Viterbi Decoder Architecture

... We propose an area-efficient high-speed interleaved Viterbi decoder architecture, which is based on the state-parallel architecture with register exchange path memory structure, for interleaved convolutional ...

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Design and implementation of forward error correction in fpga and verfication

Design and implementation of forward error correction in fpga and verfication

... and convolutional codes. Convolutional codes are widely used in encoders because it is advantageous than other coding ...transmitter convolutional encoders are used. Convolutional encoder with ...

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Layered Steered Space Time Codes Using Iterative Detection

Layered Steered Space Time Codes Using Iterative Detection

... A high level block diagram of the proposed scheme is illustrated in Figure 1. The antenna architecture employed in Figure 1 has M = 4 transmit Antenna Arrays (AA) spaced sufficiently far apart in order to achieve ...

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MI-SBTVD: A proposal for the brazilian digital television system SBTVD

MI-SBTVD: A proposal for the brazilian digital television system SBTVD

... the rate control, which provides Null Pack- ets whenever there is no data packet ...data rate is less than or equal to the system throughput, which is ...

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Compression and Decompression of Embedded System Codes

Compression and Decompression of Embedded System Codes

... The Golomb encoder model can be described in the flow chart as shown in Fig 6. The tail count is controlled by the number of ‘0’s in the input data. If the ‘0’s are read, then the tail count will be increased ...

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Turbo Coded Terrestrial Mobile Video Broadcasting

Turbo Coded Terrestrial Mobile Video Broadcasting

... Figure 6: a Histogram of the probability of occurence for various priority breakpoints and b average PSNR degradation versus BER for the rate-2/3 convolutional coded high priority data a[r] ...

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