Experimental Comparison of Pure Flooding and Its Variants on Raspberry Pi in Small Scale Ad Hoc Networks

2019 ◽  
Author(s):  
Sangwoo Jung ◽  
Ki-Il Kim
Keyword(s):  
Ad Hoc Networks ◽  
Ad Hoc ◽  
Experimental Comparison ◽  
Raspberry Pi ◽  
Small Scale ◽  
Hoc Networks

scholarly journals Test Bed for Experimental Studies of Communication Quality in Mobile Self-Organizing Networks

2018 ◽  
Vol 21 (1) ◽  
pp. 89
Author(s):  
I A Kaysina ◽  
D S Vasiliev ◽  
A V Abilov ◽  
A E Kaysin ◽  
A I Nistyuk
Keyword(s):  
Quality Of Service ◽  
Ad Hoc Networks ◽  
Ad Hoc ◽  
Experimental Studies ◽  
Raspberry Pi ◽  
Delivery Ratio ◽  
Test Bed ◽  
Packet Delivery ◽  
Hoc Networks

Описан тестовый стенд, который позволяет произвести оценку эффективности новых алгоритмов кодирования в летающих сенсорных сетях (Flying Ad Hoc Networks, FANET), в том числе и метода сетевого кодирования. В тестовый стенд входят: наземная станция (ноутбук), летающий робот (беспилотный летальный аппарат, БПЛА) и несколько микрокомпьютеров Raspberry Pi 3. С помощью тестового стенда была оценена возможная дальность связи между наземной станцией и летающим роботом, а также доказана возможность реализации сетевого кодирования на промежуточном узле на базе Raspberry Pi 3. Оценка дальности связи между наземной станцией и летающим роботом была произведена с помощью первого сценария. Летающий робот отправлял видеоданные с бортовой камеры на наземную станцию. После сбора всех данных было проанализировано качество обслуживания (quality of service, QoS) и рассчитан коэффициент доставленных пакетов (Packet Delivery Ratio, PDR) с помощью программы анализатора сетевого трафика Wireshark. По результатам измерений была найдена максимальная дальность связи между наземной станцией и летающим роботом с использованием стандарта 802.11n (Wi-Fi). Возможность реализации сетевого кодирования в самоорганизующихся сетях была произведена с помощью второго сценария. Была создана самоорганизующаяся сеть из трех микрокомпьютеров Raspberry Pi 3. Для маршрутизации данных использовался протокол B.A.T.M.A.N., на основе которого может быть проанализирована одна из реализаций метода сетевого кодирования.

scholarly journals Quality of Service Specifications in Small-Scale Proximity-Aware Mobile Sensor Sharing Frameworks

2016 ◽  
Vol 2016 ◽  
pp. 1-19
Author(s):  
Pramita Mitra ◽  
Mehdi Golestanian ◽  
Christian Poellabauer
Keyword(s):  
Quality Of Service ◽  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Service Providers ◽  
Small Scale ◽  
Mobile Sensor ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Proximity-awareness, that is, a mobile device being aware of the presence and capabilities of other devices in its proximity, can be beneficial in many frameworks that support spontaneous sharing of sensors available in advanced personal mobile devices (e.g., smartphones and tablets). Providing Quality of Service (QoS) guarantees in such frameworks is highly challenging because of the dynamic and loosely coupled nature of Mobile Ad Hoc Networks (MANETs). A framework called the SPontaneous Information and Resource sharing InfrasTructure (SPIRIT) has been presented before to address the challenges of proximity-aware mobile sensor sharing. SPIRIT allows mobile applications to share sensors as services in an automatic fashion by enabling the service providers and clients to express a variety of QoS specifications. This paper presents a set of mobility-aware QoS mechanisms for enabling the implementation of QoS specifications along the multihop paths between service providers and clients in highly mobile environments. Simulations in small-scale Mobile Ad Hoc Networks show SPIRIT’s ability to effectively control and manage traffic flows while maintaining desired QoS. The implications of the proposed QoS mechanisms extend beyond the scope of SPIRIT, as QoS provisioning is an important issue in many MANET frameworks and applications including Vehicular Ad Hoc Networks (VANETs).

scholarly journals Extensions to the IEEE 802.11 TSF for Efficient and Reliable Network Synchronization in Large Scale MANETs

2006 ◽  
Vol 2 (2) ◽  
pp. 110
Author(s):  
Peter Rauschert ◽  
Arasch Honarbacht ◽  
Anton Kummert
Keyword(s):  
Ad Hoc Networks ◽  
Ieee 802.11 ◽  
Large Scale ◽  
Ad Hoc ◽  
Small Scale ◽  
Distributed Coordination ◽  
Self Organized ◽  
Mobile Stations ◽  
Hoc Networks ◽  
Coordination Function

Designing new protocols for Mobile Ad hoc Networks (MANETs) is a great challenge due to their distributed and self organized nature. Though, aspects of approved algorithms for hierarchical topographies may be carried over to these flat networks. The IEEE 802.11 protocol supports ad hoc networks in small scale applications, but its performance in large scale environments is still under investigation. Besides the Distributed Coordination Function (DCF), the Timer Synchronization Function (TSF) can be significantly improved in order to increase the performance in large scale multihop networks. This article presents systematic extensions to the TSF that allow increasing the overall reliability and disburdening the network at the same time. The presented scheme may be tailored to specific applications and even supports mobile stations and herewith MANETs.

scholarly journals Research on MAC Protocols in Cluster-Based Ad Hoc Networks

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Yutao Liu ◽  
Yue Li ◽  
Yimeng Zhao ◽  
Chunhui Zhang
Keyword(s):  
Ad Hoc Networks ◽  
Large Scale ◽  
Ad Hoc ◽  
Mac Protocol ◽  
Cluster Head ◽  
Small Scale ◽  
Control Overhead ◽  
Large Scale Network ◽  
Hoc Networks ◽  
Network Overhead

Mobile ad hoc networks can be widely used in many scenes, for example, military communication, emergency communication, and 5G wide area coverage as well as ultradense network scenes. A cluster-based network can decrease network overhead effectively and then constitute a large-scale network through extending network scale by clustering and cascading. In view of multiservice simultaneous transmission demand for small-scale dense networking scene and large-scale extended networking scene, a MAC protocol based on scheduling of cluster head is proposed, which can avoid collision and retransmission between nodes effectively, and then the network synchronizing in intercluster and intracluster as well as the time-slot scheduling is solved fast and efficiently. A network synchronization algorithm based on clock spread of the sponsorship node is proposed to achieve network self-synchronizing, and a modified schedule-tree algorithm based on cluster head and exactly sponsorship node is proposed to decrease network overhead and to increase network fairness, then MAC protocol based on scheduling of cluster head is verified by simulated analysis. Finally, a dynamic gateway selection algorithm based on link stability is proposed in this paper to decrease intercluster communication control overhead and improve intercluster communication reliability.

Small-Scale and Large-Scale Routing in Vehicular Ad Hoc Networks

2009 ◽  
Vol 58 (9) ◽  
pp. 5200-5213 ◽  
Author(s):  
Wenjing Wang ◽  
Fei Xie ◽  
M. Chatterjee
Keyword(s):  
Ad Hoc Networks ◽  
Large Scale ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Small Scale ◽  
Hoc Networks
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