Two-Source Asymmetric Turbo-Coded Cooperative Spatial Modulation Scheme with Code Matched Interleaver

Zhao, Chunli; Yang, Fang; Umar, Rahim; Mughal, Shoaib

doi:10.3390/electronics9010169

Cited by 13 publications

(17 citation statements)

References 33 publications

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“…Simulation results for proposed system with single relay and multiple relays modified iterative chase Pyndiah decoder show gain improvement respectively over BER performance of uncooperative system. 3) iteration (5)…”

Section: Discussionmentioning

confidence: 99%

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Iterative Decoding of Chase Pyndiah Decoder Utilizing Multiple Relays Network

Alnawayseh¹

2021

IJACSA

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In this paper, a distributed Encoding and decoding of Turbo Product Code (TPC) over single and multiple relays network are proposed. The information message matrix is encoded at source by Bose Chaudhuri Hochquenghem (BCH) as component code and transmitted to destination and relays in the midway between source and destination. The coded source message is decoded by simple chase П decoder at relay and encoded again horizontally and vertically by BCH component code to construct TPC. Two scenarios were investigated. First scenario, utilizing one relay in cooperative network, where the vertical parity part of TPC is transmitted to destination to be the input of row decoder for original chase pyndiah decoder, while the received encoded horizontally matrix from source is the input of the column decoder. In the second scenario multiple relays are utilized and multiple copies of vertical parity part of TPC are sent to destination to be decoded by the proposed modified iterative chase pyndiah decoder with multiple integrated stages for each iteration. Simulation results for the first scenario over Additive White Gaussian (AWGN) and Rayleigh fading channels and using original chase Pyndiah decoder at destination shows 2dB gain improvement at BER= − and 4dB gain improvement at BER= − respectively over BER performance of un cooperative system. While results for distributed TPC decoding for the second scenario and using the proposed modified iterative chase Pyndiah decoder at destination shows 2.7 dB and 3 dB gain at BER = − for AWGN and Rayleigh fading channels respectively over the first scenario.

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Section: Discussionmentioning

confidence: 99%

“…Distributed decoding of turbo codes has been investigated widely over cooperative relay network system [1], [2], [3], [4], and [5]. One of the turbo codes types is the Turbo Product Code TPC.…”

Section: Introductionmentioning

confidence: 99%

Iterative Decoding of Chase Pyndiah Decoder Utilizing Multiple Relays Network

Alnawayseh¹

2021

IJACSA

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“…Multiple-input multiple-output (MIMO) systems have been recognized as a core technique for improving the spectral efficiency and link reliability comparing with single antenna wireless systems [1]. A well-known MIMO technique is the vertical Bell Labs Layered Space-Time (V-BLAST) architecture.…”

Section: Introductionmentioning

confidence: 99%

Jointly optimized design of distributed RS-coded spatial modulation by appropriate selection at the relay

Zhao

Yang

Ullah

et al. 2023

J Wireless Com Network

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This paper proposes the distributed Reed–Solomon (RS)-coded spatial modulation (DRSC-SM) scheme over quasi-static Rayleigh fading channel. Two different RS codes are used, one having a smaller minimum distance at the source and the other having a larger minimum distance at the relay. In order to obtain an optimized code at the destination, a proper encoding strategy must be adapted at the relay. Thus, an efficient design approach is proposed that suitably selects the symbols at the relay. Using this optimized approach as a benchmark, another design is proposed to achieve reduced complexity. To jointly decode the source and relay RS codes, three different decoding algorithms known as the naive, smart and improved smart algorithms are presented. Monte Carlo simulated results reveal that the proposed DRSC-SM scheme utilizing the improved smart decoding algorithm outperforms its counterpart DRSC-SM scheme employing the naive and smart decoding algorithms under identical conditions. The simulation results also validate the superiority of the proposed DRSC-SM scheme over its corresponding coded noncooperative scheme under the same decoding algorithm.

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“…It is because SM has a significant feature, i.e., at each time instant a single active transmitting antenna propagates symbols taken from constellation diagram, which efficiently avoids the inter-channel interference (ICI) and inter-antenna synchronization (IAS) [11], [12]. Many related literatures such as [13][14][15] have reported the coded SM schemes, and they also present that incorporating SM into channel coding can achieve a good performance. Motivated by this, we investigate the QC-LDPC coded SM (QC-LDPCC-SM) as the amalgamation of the new channel coding technique (5G LDPC codes) and SM.…”

Section: Introductionmentioning

confidence: 99%

Distributed QC-LDPC Coded Spatial Modulation for Half-Duplex Wireless Communications

Zhao¹,

Yang²,

Waweru³

et al. 2022

RADIOENGINEERING

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The bit error rate (BER) performance of spatial modulation (SM) can be further improved by applying quasi-cyclic low-density parity-check (QC-LDPC) codes recommended in 5G to SM. It motivates us to propose a QC-LDPC coded SM (QC-LDPCC-SM) scheme, where SM signals are protected by QC-LDPC codes. To estimate the channel state information at the receiver, a novel iterative joint channel estimation and data detection based on variable block length (IJCEDD-VBL) for SM is presented. In standard 5G LDPC codes, the parity-check matrix contains multiple submatrices, and then we can construct two different QC-LDPC codes by suitably selecting the submatrices. Thus, the QC-LDPCC-SM scheme can be effectively extended to cooperative scenarios when deploying the generated LDPC codes at the source and relay, respectively. We develop an analytical approach for the BER performance of the proposed schemes. The simulation and theoretical results are in good agreement at high signal-to-noise ratio (SNR). Furthermore, the proposed coded cooperative scheme outperforms its corresponding non-cooperative counterpart and the existing scheme. The numerical results also validate the effectiveness of the proposed channel estimation scheme.

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Two-Source Asymmetric Turbo-Coded Cooperative Spatial Modulation Scheme with Code Matched Interleaver

Cited by 13 publications

References 33 publications

Iterative Decoding of Chase Pyndiah Decoder Utilizing Multiple Relays Network

Iterative Decoding of Chase Pyndiah Decoder Utilizing Multiple Relays Network

Jointly optimized design of distributed RS-coded spatial modulation by appropriate selection at the relay

Distributed QC-LDPC Coded Spatial Modulation for Half-Duplex Wireless Communications

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