Flying Ad-Hoc Network for Emergency Based on IEEE 802.11p Multichannel MAC Protocol

Dinh, Truong Duy; Le, Duc Tran; Tran, Thi Thu Thao; Kirichek, Ruslan

doi:10.1007/978-3-030-36614-8_37

Cited by 12 publications

(2 citation statements)

References 28 publications

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“…En (Dinh et al, 2019), se propone una arquitectura que apoya la comunicación entre los rescatistas y las víctimas mediante el uso de la red aérea ad hoc para emergencias. Además, la mayor parte de las infraestructuras están dañadas o completamente destruidas en los escenarios posteriores a las catástrofes, por ello, se puede utilizar una red ad hoc vehicular (VANET) para llevar a cabo la operación de rescate, ya que no requiere ninguna infraestructura preexistente.…”

Section: Introductionunclassified

Evaluación y comparación de códecs de video para el despliegue de un sistema de comunicación resiliente

Picón

Romero

Martínez

et al. 2022

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En escenarios de emergencia usualmente es difícil contar con una infraestructura de red, especialmente en lugares remotos o geográficamente complicados por el difícil acceso. Sin embargo, es necesario disponer de herramientas para comunicarse o realizar una valoración de la situación. En este sentido, las redes ad hoc surgen como una opción para solucionar esta problemática. En el presente artículo se propone el desarrollo de un sistema de comunicación de emergencia para la transmisión de tráfico multimedia en un escenario real, entre los diferentes pisos de un edificio. Para tal objetivo, se realizaron múltiples experimentos para determinar los valores de métricas fundamentales (v.g. packet loss, delay y throughput) para la transmisión de audio y video en tiempo real. En concreto, se desarrollaron herramientas de código abierto con capacidad de extraer las métricas requeridas y comparar de forma objetiva la calidad del video empleando mecanismos de codificación actuales (v.g. VP8, VP9, H.264, H.265). Los resultados obtenidos muestran que VP8 es el códec más adecuado para el escenario propuesto. Además, se desarrolló una herramienta de videoconferencia con capacidad de adaptar las características del video (v.g. bitrate) acorde a las condiciones de la red.

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Section: Introductionunclassified

Evaluación y comparación de códecs de video para el despliegue de un sistema de comunicación resiliente

Picón

Romero

Martínez

et al. 2022

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“…During natural disasters such as floods, wildfires, etc., MBSs hover over the affected region to find estimates of the number of affected people. These estimates are used to achieve efficient management of disaster relief teams and the distribution of relief materials [6]. Node cardinality estimation schemes are also useful in the design of medium access control protocols for wireless networks; in particular, the optimal contention probabilities, contention period durations, data transmission period durations, etc., can be computed as functions of the computed estimates [7]- [9].…”

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Node Cardinality Estimation Using a Mobile Base Station in a Heterogeneous Wireless Network Deployed Over a Large Region

Kadam

Kasbekar

2020

2020 International Conference on Signal Processing and Communications (SPCOM)

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We consider the problem of estimation of the node cardinality of each node type in a heterogeneous wireless network with T types of nodes deployed over a large region, where T ≥ 2 is an integer. A mobile base station (MBS), such as that mounted on an unmanned aerial vehicle, is used in such cases since a single static base station is not sufficient to cover such a large region. The MBS moves around in the region and makes multiple stops, and at the last stop, it is able to estimate the node cardinalities for the entire region. In this paper, we propose two schemes, viz., HSRC-M1 and HSRC-M2, to rapidly estimate the number of nodes of each type. Both schemes have two phases, and they are performed at each stop. We prove that the node cardinality estimates computed using our proposed schemes are equal to, and hence as accurate as, the estimates that would have been obtained if a well-known estimation protocol designed for homogeneous networks in prior work were separately executed T times. We compute closed-form expressions for the expected number of slots required by HSRC-M1 to execute and the expected energy consumption of a node under HSRC-M1. We formulate the problem of finding the optimal tour of the MBS around the region, which covers all the nodes and minimizes the travel cost of the MBS, show that it is NP-complete, and provide a greedy algorithm to solve it. Using simulations, we show that the numbers of slots required by the proposed schemes, HSRC-M1 and HSRC-M2, for computing node cardinality estimates are significantly less than the number of slots required for T separate executions of the above estimation protocol for homogeneous networks.

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Study of Detection Characteristics in Recognition of Simple Radio Pulses and Signals with LFM and PSK in the Autocorrelation Receiver

Nhan

Podstrigaev

Likhachev

et al. 2020

Lecture Notes in Computer Science

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Flying Ad-Hoc Network for Emergency Based on IEEE 802.11p Multichannel MAC Protocol

Cited by 12 publications

References 28 publications

Evaluación y comparación de códecs de video para el despliegue de un sistema de comunicación resiliente

Evaluación y comparación de códecs de video para el despliegue de un sistema de comunicación resiliente

Node Cardinality Estimation Using a Mobile Base Station in a Heterogeneous Wireless Network Deployed Over a Large Region

Study of Detection Characteristics in Recognition of Simple Radio Pulses and Signals with LFM and PSK in the Autocorrelation Receiver

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