Performance survey of IDMA with different interleavers

Sharma, Sparsh; Sau, Paresh Chandra; Shukla, Aasheesh

doi:10.1109/spin.2014.6776975

Cited by 12 publications

(7 citation statements)

References 12 publications

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“…The Hash function distributes the message bits around the transmission codeword. This performs a similar function to that of random interleaving which provides resistance to burst errors and can be used for multi user access [ 18 ][ 19 ][ 20 ]. However there is a fundamental difference here.…”

Section: Methodsmentioning

confidence: 99%

Concurrent Codes: A Holographic-Type Encoding Robust against Noise and Loss

Benton

2016

PLoS ONE

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Concurrent coding is an encoding scheme with ‘holographic’ type properties that are shown here to be robust against a significant amount of noise and signal loss. This single encoding scheme is able to correct for random errors and burst errors simultaneously, but does not rely on cyclic codes. A simple and practical scheme has been tested that displays perfect decoding when the signal to noise ratio is of order -18dB. The same scheme also displays perfect reconstruction when a contiguous block of 40% of the transmission is missing. In addition this scheme is 50% more efficient in terms of transmitted power requirements than equivalent cyclic codes. A simple model is presented that describes the process of decoding and can determine the computational load that would be expected, as well as describing the critical levels of noise and missing data at which false messages begin to be generated.

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Section: Methodsmentioning

confidence: 99%

Concurrent Codes: A Holographic-Type Encoding Robust against Noise and Loss

Benton

2016

PLoS ONE

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“…Generally, two traditional types of interleaves usually named to as block and convolutional. Block divided into many types as follow [13,14]:…”

Section: Working Principle and Types Of Interleavermentioning

confidence: 99%

The efficient interleaving of digital-video-broadcasting-satellite 2nd generations system

Ameen

2020

TELKOMNIKA

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The DVB-S2 system is designed as a toolbox to permit the execution of the satellite programs. Interleaver is an essential part of the DVB-S2 system. The current general block interleaver in DVB-S2 is not best, which leads to high BER and maybe not satisfy the requirements of the system. The purpose of this paper is to study the several interleaver types and comparative analyses are done between them to find which of these give better performance. Simulations results obtained prove that the 2D interleavers minimize BER more than other interleavers of DVB-S2. Further, the performance of 2D interleaver is better on a system that required a low SNR.

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“…As can be seen from Table 1, this complexity analysis shows that the computational complexity of our proposed method is less than that of the MMSE algorithm [26]. In the first stage of the simulations, we compare our proposed estimator to LS, MMSE, MLP-BP, and RBFNN with regard to BER and MSE criteria by using a four-tap frequency-selective fading channel that has [0, 4,8,12] µs relative delays and [0, -3, -6, -9] dB power paths. After that, the OFDM-IDMA system performance is observed for two different user numbers with the considered channel estimation techniques with regard to BER criteria.…”

Section: The Complexity Of Anfismentioning

confidence: 99%

“…ISI and MAI, two main obstacle in wireless communication systems, are prevented by the OFDM and IDMA parts, respectively [4,5]. In the OFDM-IDMA system, the signals belonging to different users are separated by the interleavers generated particularly for each user [6][7][8][9]. MAI is prevented with the aid of a chip-by-chip multiuser detection algorithm in a low-cost way [10,11].…”

Section: Introductionmentioning

confidence: 99%

Channel estimation using an adaptive neuro fuzzy inference system in the OFDM-IDMA system

Taşpınar¹,

Şimşir²

2017

Turk J Elec Eng & Comp Sci

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Abstract:In this paper, a channel estimator based on an adaptive neuro fuzzy inference system (ANFIS) is proposed for the purpose of estimating channel frequency responses in orthogonal frequency division multiplexing-interleave division channel estimator based on ANFIS shows better performance than both the LS algorithm and the other considered heuristic methods like MLP-BP, MLP-LM, and RBFNN, whereas the MMSE algorithm still shows the best performance as expected because of exploiting channel statistics and noise information, which makes it very complex to be used in any system. As well as being less complex compared to the MMSE algorithm, the estimator based on ANFIS does not need pilot tones for channel estimation. These properties bring our proposed method to an advantageous position among the other estimation techniques.

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Performance survey of IDMA with different interleavers

Cited by 12 publications

References 12 publications

Concurrent Codes: A Holographic-Type Encoding Robust against Noise and Loss

Concurrent Codes: A Holographic-Type Encoding Robust against Noise and Loss

The efficient interleaving of digital-video-broadcasting-satellite 2nd generations system

Channel estimation using an adaptive neuro fuzzy inference system in the OFDM-IDMA system

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