Minimizing Age of Information Based on Predictions and Short Packet Communications in UAV Relay Systems

Zhang, Yangyi; Chen, Yong; Yu, Baoquan; Diao, Xianbang; Cai, Yueming

doi:10.1109/wcsp52459.2021.9613540

Cited by 4 publications

(8 citation statements)

References 12 publications

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“…In each iteration, the proposed turbo-Hadamard codes based on tail-biting need to calculate K times, whereas the turbo-Hadamard codes [20] need to calculate (K + η) times. Therefore, we can obtain the computation complexity estimation of the decoder through (17) to (25). The computational complexity of each iteration is shown in Table 1.…”

Section: The Tail-biting Turbo-hadamard Decodermentioning

confidence: 99%

“…We employ approximate algorithms to greatly reduce the decoding complexity [22], which results in the effect that the usages of lookup tables (LUTs) are reduced by more than 20% compared to the practical low-rate codes [23,24]. Considering the fact that the information package is usually short in UAVs [25], we proposed the use of advanced tail-biting turbo-Hadamard codes, which are constructed by concatenating several tail-biting convolutional-Hadamard codes in parallel in order to reduce the communication latency [26]. Simulation results showed that the proposed tail-biting turbo-Hadamard codes performed better than other low-rate codes when faced with various jamming conditions.…”

Section: Introductionmentioning

confidence: 99%

“…15:k 3 = k 3 + 1. 16: until k 3 = K 17: repeat 18:Calculate L k 4 with g k 4 , a k 4 and b k 4 +1 according to(25) in LCU.19:Calculate E k 4 with L k 4 and L a k 4 according to(15) in ECU.20:…”

mentioning

confidence: 99%

See 2 more Smart Citations

Efficient Low-Complexity Turbo-Hadamard Code in UAV Anti-Jamming Communications

Dong

He²,

Yang

et al. 2022

Electronics

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Unmanned aerial vehicle (UAV) systems undergo a period of rapid development in both civil and military scenarios. A major challenge in the malicious jamming environment is to guarantee the reliability of UAV communications links. Frequency hopping (FH) is one of the most commonly used means of combatting the influence brought about by jamming. In this paper, we integrate low-rate codes into an anti-jamming FH communications system, and propose an efficient and low-complexity turbo-Hadamard code scheme. Tail-biting is applied to design the component convolutional-Hadamard codes, and a corresponding decode algorithm is used for implementation in the UAV hardware platform. Numerical simulation results demonstrate that the anti-jamming performance of this method is improved as compared with conventional concatenated codes. Finally, we compare the complexity and transmission efficiency of the proposed algorithm with the algorithms implemented on the field programmable gate array (FPGA) platform in detail.

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Section: The Tail-biting Turbo-hadamard Decodermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Efficient Low-Complexity Turbo-Hadamard Code in UAV Anti-Jamming Communications

Dong

He²,

Yang

et al. 2022

Electronics

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“…In the existing literature [9]- [15], prediction has been considered as a promising approach to meet the stringent quality of service (QoS) requirements, such as latency and reliability. In a packetized predictive control system, predicted packets are sent to the receiver in advance and are used in case of packet loss [9].…”

mentioning

confidence: 99%

“…In [14], JND violation probability was used as the overall performance metric to illustrate the benefits of prediction on AoI in Intelligent Transport Systems (ITS). Similarly in [15], the tradeoff between prediction length and AoI was analyzed by using JND violation probability in prediction design. The results showed that the prediction algorithm used in the system can help to improve the AoI performance.…”

mentioning

confidence: 99%

Task-Oriented Prediction and Communication Co-Design for Haptic Communications

Kizilkaya

She

Zhao

et al. 2023

IEEE Trans. Veh. Technol.

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Prediction has recently been considered as a promising approach to meet low-latency and high-reliability requirements in long-distance haptic communications. However, most of the existing methods did not take features of tasks and the relationship between prediction and communication into account. In this paper, we propose a task-oriented prediction and communication co-design framework, where the reliability of the system depends on prediction errors and packet losses in communications. The goal is to minimize the required radio resources subject to the low-latency and high-reliability requirements of various tasks. Specifically, we consider the just noticeable difference (JND) as a performance metric for the haptic communication system. We collect experiment data from a real-world teleoperation testbed and use time-series generative adversarial networks (TimeGAN) to generate a large amount of synthetic data. This allows us to obtain the relationship between the JND threshold, prediction horizon, and the overall reliability including communication reliability and prediction reliability. We take 5G New Radio as an example to demonstrate the proposed framework and optimize bandwidth allocation and data rates of devices. Our numerical and experimental results show that the proposed framework can reduce wireless resource consumption up to 77.80% compared with a task-agnostic benchmark.

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Age‐aware relay strategy with simultaneous wireless information and power transfer in remote monitoring systems

et al. 2023

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Remote monitoring systems has emerged to automate public services, where Internet of Things (IoT) devices are deployed to collect and relay streams of status updates to a remote control centre. The freshness of collected data is of critical importance to system performance, which can be quantified by the concept of age of information (AoI). To obtain timely perception of the monitored area, each sensor tends to sample status updates at the maximum frequency, which may lead to device drop‐outs due to limited battery capacity. Simultaneous wireless information and power transfer (SWIPT) is considered as a promising technology to prolong network lifetime. In this paper, a SWIPT‐enabled two‐hop relay network, where a relay node uses power splitting protocol to assist data transmissions from multiple source nodes to the destination is considered. The impact of power splitting coefficients, data arrival pattern and time‐varying channel conditions on the averaged age performance and expected lifetime of the system is theoretically analysed. Moreover, a lightweight relay strategy which selectively forward packets based on a reward function consisting of energy level at relay node and expected age reduction is developed. Simulation results show that the proposed strategy outperforms existing schemes in collecting status updates in a timely and energy‐efficient manner.

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Minimizing Age of Information Based on Predictions and Short Packet Communications in UAV Relay Systems

Cited by 4 publications

References 12 publications

Efficient Low-Complexity Turbo-Hadamard Code in UAV Anti-Jamming Communications

Efficient Low-Complexity Turbo-Hadamard Code in UAV Anti-Jamming Communications

Task-Oriented Prediction and Communication Co-Design for Haptic Communications

Age‐aware relay strategy with simultaneous wireless information and power transfer in remote monitoring systems

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