Deploying Wireless Sensor Networking Technology in a Rescue Team Context

McCarthy, Ben; Varakliotis, Socrates; Edwards, C.; Roedig, Utz

doi:10.1007/978-3-642-17520-6_4

Cited by 4 publications

(4 citation statements)

References 4 publications

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“…x i indicates the sum of the active slots of discovery schedule, and T is total slots in a schedule for a (9, 3, 1) −BIBD. For instance, the duty cycle schedule of a node m i uses the (369} block in the (9, 3, 1) −BIBD, as shown in Figure 1, which is expressed as follows:DC m = 3 9 × 100 = 33%. Lack of global synchronization among nodes due to uneven clock drift of sensor nodes in WSN turns on by radio in irregular intervals or time slots.…”

Section: Bibd and Neighbor Discovery Problemmentioning

confidence: 99%

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Energy adaptive block design based neighbor discovery for asynchronous wireless sensor networks

Mekala¹,

Chatrapathi²

2020

IJST

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Background: The need for an efficient neighbor discovery model is tremendously essential with the development of Wireless Sensor Networks (WSNs). The neighbor discovery model has growingly been significant in enhancing the performance of WSNs. Methods: In this study, adaptive energy duty-cycle, energy-efficient Balanced Incomplete Block Design (BIBD) hybrid scheme is proposed for WSNs that controls collisions, and overhearing obstacle by maintaining energy over WSNs. Energy adaptive BIBD leverages the features of symmetric BIBD. Evaluation of the proposed model is demonstrated using the TOSSIM tool, and the performance parameters are compared with other wellknown neighbor discovery process, including Disco, U-Connect, and Searchlight, Hedis, and Todis algorithms. Findings: The outputs of our simulation study illustrates that the proposed model significantly outperforms other neighbor discovery algorithms with reference to energy-efficiency and discovery latency.

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Section: Bibd and Neighbor Discovery Problemmentioning

confidence: 99%

“…Due to their resource constraints, and they sustained until sensor nodes energy drains. The paramount objective of WSN applications is to enlarging the lifespan of sensor nodes by reducing energy consumption (3,4) .…”

Section: Introductionmentioning

confidence: 99%

Energy adaptive block design based neighbor discovery for asynchronous wireless sensor networks

Mekala¹,

Chatrapathi²

2020

IJST

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“…Robust communication in complex scenarios is critical for various applications, including situational awareness and Search and Rescue (SaR) missions for people in emergency situations. Real-time video streaming technology can expedite the rescue operation by sending video data out of the area of danger immediately to a receiving station or rescue teams [1]- [2]. Recently, there has been growing interest in the use of unmanned aerial and ground vehicles for such SaR missions.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Digital Video Streaming at Low-VHF for Compact Autonomous Agents in Complex Scenes

Choi

Rao

Dagefu

2019

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring)

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This paper presents an experimental investigation of real-time digital video streaming in physically complex Non-Lineof-Sight (NLoS) channels using a low-power, low-VHF system integrated on a compact robotic platform. Reliable video streaming in NLoS channels over infrastructure-poor ad-hoc radio networks is challenging due to multipath and shadow fading. In this effort, we focus on exploiting the near-ground low-VHF channel which has been shown to have improved penetration, reduced fading, and lower power requirements (which is critical for autonomous agents with limited power) compared to higher frequencies. Specifically, we develop a compact, low-power, low-VHF radio test-bed enabled by recent advances in efficient miniature antennas and off-the-shelf software-defined radios. Our main goal is to carry out an empirical study in realistic environments of how the improved propagation conditions at low-VHF affect the reliability of video-streaming with constraints stemming from the limited available bandwidth with electrically small low-VHF antennas. We show quantitative performance analysis of video streaming from a robotic platform navigating inside a large occupied building received by a node located outdoors: bit error rate (BER) and channel-induced Peak Signalto-Noise Ratio (PSNR) degradation. The results show channeleffect-free-like video streaming with the low-VHF system in complex NLoS channels.

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“…Nowadays wireless sensor networks (WSNs) are more and more widely used in many fields such as environmental monitoring [1], tactical military [2] [3], disaster relief [4] and so on. Besides, WSN is one of key enablers for the Internet of Things (IoT) paradigm.…”

Section: Introductionmentioning

confidence: 99%

ODM: A Neighbor Discovery Protocol Based on Optimal Discovery Model in WSNs

Wang¹,

Wei²,

Ping³

et al. 2018

KSII TIIS

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It is a challenging issue to improve the energy efficiency of neighbor discovery in WSNs. This paper proposes an optimal discovery model (ODM) for the first time. Based on the model, we investigate the influence of the relative size of two unequal active slots on the energy efficiency. ODM provides the energy optimal value of the length of the larger active slot at a given duty cycle. Other than existing methods, the worst-case latency bound of ODM is only one period. This is a subversive conclusion, because almost all other related methods are based on a wake-up schedule that contains several periods. We theoretically deduce that ODM can reduce worst-case discovery latency by 43.89% compared to Searchlight-Trim when their duty cycles are the same. The simulations verify the advantage of ODM.

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Deploying Wireless Sensor Networking Technology in a Rescue Team Context

Cited by 4 publications

References 4 publications

Energy adaptive block design based neighbor discovery for asynchronous wireless sensor networks

Energy adaptive block design based neighbor discovery for asynchronous wireless sensor networks

Real-Time Digital Video Streaming at Low-VHF for Compact Autonomous Agents in Complex Scenes

ODM: A Neighbor Discovery Protocol Based on Optimal Discovery Model in WSNs

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