Distributed Network Coding for Wireless Sensor Networks Based on Rateless LT Codes

Pang, Kun; Lin, Zihuai; Uchôa-Filho, Bartolomeu F.; Vucetic, Branka

doi:10.1109/wcl.2012.080112.120465

Cited by 38 publications

(13 citation statements)

References 15 publications

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“…Through separating the coding and radio into two concurrent threads, the end-to-end delay is shortened, this is the protocol which is proposed by Gao et al [17]. Pang et al [18] have proposed a distributed network coding (DNC) approach, which the relay nodes send data to the destination node by performing network coding. Xu et al [19] have proposed a collaborative data collection scheme, which employing opportunistic in-network recoding in a disruptive network environment [20].…”

Section: Related Workmentioning

confidence: 99%

“…The node distribution follows a homogenous Poisson point process with a density of ρ sensors per unit area; (2) the transmitting radius of sensor node is denoted by r. In the paper, we consider the probability of generation one date packages as λ in a sample cycle [9], and this is refereed to one round. The sensory data is sent to the base station adopting greedy geographic routing [18]. (3) For each node i, the probabilities of successful transmission between node i to node i + 1 are denoted by p i .…”

Section: The Network Modelmentioning

confidence: 99%

“…By formulas (18) and (19), we can calculate the amount of data that the nodes in the inner loops need to send and receive. If the node's redundancy level is reduced by 1, though the receiving data sizes is unchanged, the sending data sizes is decreased,…”

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confidence: 99%

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An unequal redundancy level-based mechanism for reliable data collection in wireless sensor networks

Zhang

Liu

2016

J Wireless Com Network

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Most applications require high reliability with low delay in wireless sensor networks (WSNs). Unfortunately, it is a challenge issue to achieve reliable communication because of the lossy nature of wireless channels. In this paper, a novel unequal redundancy level (URL) data collection scheme is proposed to achieve high reliability for wireless sensor networks while long lifetime can be still guaranteed. Aiming at the imbalance of energy consumption in WSNs, a URL data collection scheme adopts network coding-based mechanism with high redundancy level in non-hotspot areas while adopting low redundancy level in hotspot areas. The theoretical analysis and experimental results show that, comparing with equal redundancy level (ERL) approach, the URL approach improves the lifetime by 15-50 % under the same reliability, and it can also improve the reliability by 14.1-28.3 % under the same lifetime. Comparing with an SW-ARQ approach, the URL approach improves the lifetime by 7-30 % under the same reliability, and it can also improve the reliability by 8-23 % under the same lifetime.

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Section: Related Workmentioning

confidence: 99%

Section: The Network Modelmentioning

confidence: 99%

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An unequal redundancy level-based mechanism for reliable data collection in wireless sensor networks

Zhang

Liu

2016

J Wireless Com Network

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“…The carefully designed degree distribution, such as robust soliton distribution (RSD), for LT codes is efficient on point-to-point channels, but it cannot be directly used in the multisource networks. Much research works [13][14][15][16][17][18][19][20] have been done to study how to apply the LT codes to the multisource networks while still maintaining the key properties of original LT codes.…”

Section: Introductionmentioning

confidence: 99%

Distributed Luby transform coding for three‐source single‐relay networks based on the deconvolution of robust soliton distribution

Shao

Zhang

2015

IET Communications

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The distributed Luby transform (LT) coding is investigated for the multisource networks, especially with three sources. Based on the three-source single-relay network model, the authors propose a threefold deconvolution method of the robust soliton distribution (RSD). The deconvolved distribution is used at each source, and a simple and feasible combining algorithm is developed for re-encoding at the relay. Such a modified LT code with three sources (MLT-3) is constructed. Simulation results verify that the overall degree distribution of the proposed MLT-3 codes agrees well with the RSD. The performance of MLT-3 codes is evaluated and compared with other coding schemes. Simulations reveal that MLT-3 codes have similar behaviour with the two-source or four-source distributed LT codes and the benefits are observed in comparison with the separate LT codes. Simulations also show that MLT-3 codes exhibit good performance on various erasure channels.

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“…Distributed coding [2], [3], is an efficient channel coding strategy to improve the transmission reliability of cooperative communication networks. A distributed network coding scheme using fountain codes, referred to as distributed network-channel coding (DNCC) scheme [4], was proposed to reduce the network code design to the problem of designing a Tanner graph code by matching it to a real-time network topology. In this approach, reliable transmission for the applications where direct communication links do not exist between the source nodes and the sink can be achieved.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Unequal Error Protection Distributed Network Coding Based on Fountain Codes

Yue

Lin

Bai

et al. 2014

IEEE Wireless Commun. Lett.

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In this paper, we propose an unequal error protection (UEP) distributed network coding (DNC) scheme based on fountain codes to provide arbitrary error protection (i.e., infinite protection levels) to all the source nodes in wireless relay networks (WRNs). We derive the upper and lower bit error rate (BER) bounds for the proposed UEP DNC scheme with maximum-likelihood (ML) decoding over Rayleigh fading channels. Numerical results show that the derived analytical bounds are tight and our proposed UEP DNC scheme based on fountain codes has a strong UEP property.Index Terms-Distributed network coding, wireless relay networks, fountain codes, Rayleigh fading channels, upper and lower bit error rate bounds.

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Distributed Network Coding for Wireless Sensor Networks Based on Rateless LT Codes

Cited by 38 publications

References 15 publications

An unequal redundancy level-based mechanism for reliable data collection in wireless sensor networks

An unequal redundancy level-based mechanism for reliable data collection in wireless sensor networks

Distributed Luby transform coding for three‐source single‐relay networks based on the deconvolution of robust soliton distribution

Performance Analysis of Unequal Error Protection Distributed Network Coding Based on Fountain Codes

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