Age-Optimal Network Coding HARQ Scheme for Satellite-Based Internet of Things

Ding, Jing; Jiao, Jian; Huang, Jianhao; Wu, Shaohua; Lu, Rongxing; Zhang, Qinyu

doi:10.1109/jiot.2022.3182006

Cited by 11 publications

(9 citation statements)

References 38 publications

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“…A group of researchers from the Harbin Institute of Technology have been presenting articles since 2020 that combine network coding and hybrid automatic repeat request principles, together with the matching NC HARQ transmission method created for satellite-based IoT systems. The researchers studied fixed interval network coding (f-NC HARQ) and adaptive network coding (A-NC HARQ) and published the related data transmission protocol, which demonstrated that A-NC HARQ can achieve the lowest peak age of information and average end-to-end delay [29]- [31].…”

Section: The Use Of Network Coding In Data Transfer Protocolsmentioning

confidence: 99%

Network Coding Datagram Protocol for TCP/IP Networks

et al. 2023

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In this article, a new multicast protocol is introduced at the session layer, which is based on network coding and is called the Network Coding Datagram Protocol (NCDP). The NCDP protocol is specifically designed for content delivery systems that utilize multicast data transmission from multiple sources. The development of the NCDP packet and its operational logic takes into consideration the variability of the protocols used in conjunction with it, as well as the packet header processing algorithms for routing nodescoders. Additionally, a virtual laboratory bench is proposed to facilitate research on the operation of the protocol. The article also includes the results of testing the NCDP protocol in networks with butterfly and diamond topologies, with a comparison between simple sequential multicast transmission and network coding transmission.

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Section: The Use Of Network Coding In Data Transfer Protocolsmentioning

confidence: 99%

Network Coding Datagram Protocol for TCP/IP Networks

et al. 2023

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“…Motivated by the effectiveness of AoI on capturing the freshness of status updates in terrestrial networks, some works have turned to characterize the S-IoT. The works of Ding et al [26][27][28] pointed out that in upcoming S-IoT, a noted limitation is the non-trivial propagation latency due to the long distances and complicated environment between satellite and terrestrial devices. This fact causes the high packet error probability and multiple retransmissions of lost packets are required to guarantee the reliable transmission of data packets, which significantly decreases the freshness of status updates.…”

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confidence: 99%

“…This fact causes the high packet error probability and multiple retransmissions of lost packets are required to guarantee the reliable transmission of data packets, which significantly decreases the freshness of status updates. In order to improve the traditional hybrid automatic repeat request (HARQ), the work of Ding et al [26][27][28] proposed a network coding-based HARQ policy by using the cardinal two-hope model. Li et al 29 investigated the age-optimal HARQ design for freshness-critical S-IoT system by specially considering the propagation delay from satellite to terrestrial IoT devices.…”

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confidence: 99%

“…In fact, in the T-IoT systems, to enhance the freshness, there are a large of works that investigated the improvement on retransmission policy. [33][34][35] In addition, for the S-IoT systems, while the aforementioned works exploited the effect of HARQ (ARQ) protocol on the freshness of status updates, [26][27][28][29][30] the work of Najm et al 36 proved that from an age point of view, the infinite incremental redundancy (IIR) HARQ is better than the fixed redundancy (FR) HARQ. In the work of Devassy et al, 37 the combination scheme of the simple ARQ and HARQ was proposed and the delay and peak AoI were investigated.…”

mentioning

confidence: 99%

“…To overcome this problem, some early works have attempted to exploit the improvement on HARQ (or ARQ) under the S-IoT scenario. The works of Ding et al 26,27 proposed a network code (NC) HARQ transmission strategy to achieve limited or no feedback dual (multi)-hop transmission in the satellite communication scenario. Simulation results showed that the proposed NC-HARQ strategy achieves lower average AoI compared with the state-of-the-art HARQ strategies.…”

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confidence: 99%

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Age of error information and throughput for truncated and layer‐coded HARQ‐based satellite‐IoT systems

Zhao,

Jia,

Xie

et al. 2023

Int J Communication

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SummaryThe work focuses on the simultaneous improvement on the throughput and information freshness of the promising satellite‐based Internet of Things (S‐IoT). To this end, we first propose a method based on the adaptive modulation coding (AMC) and truncated layer‐coded hybrid automatic repeat request (L‐HARQ) strategies by especially considering the difference in the channel state information (CSI) between the transmitter and receiver. On account of the large signal delay of the S‐IoT systems, this paper establishes the channel model based on the correlation of the signal‐to‐noise ratio (SNR) under the outdated channel and the ideal channel. Secondly, considering the fact that the improved backtrack decoding is used in the L‐HARQ, the classical definition of age of information (AoI) is insufficient to quantify the status update freshness, we propose the age of error information (AoEI), which is defined as the elapsed time since the generation of the lastly successfully backtrack‐decoded status update. Thirdly, we characterize the statistical descriptions of the maximum wait time of the successfully recovered status updates and the interdeparture time between the two consecutive status update packets that are lastly successfully received. Then, the closed‐form expression of average AoEI is derived under the assumption of independent and identically distributed fading channels. Finally, the Markov decision process (MDP) framework is used to optimize the packet parameters in each round of L‐HARQ process under the general fading scenario. Thereby, the optimized transmission scheme that minimizes AoI with throughput constraint is solved. The simulations investigate the effect of system parameters on the average AoEI.

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