Evaluation of PSO Algorithm Considering Obstacle Avoidance in Evacuation Guidance

Matsuzawa, Tomofumi; ISHİİ, Akiyoshi

doi:10.31197/atnaa.1095309

Cited by 1 publication

(1 citation statement)

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“…In this experiment, the topology was configured to simulate scenarios with high population density, such as suburban areas near an urban centers. An analogous situation to present MANET usage is during emergencies, like disaster scenarios, where users equipped with mobile terminals adhere to specific movement protocols [24,25]. In such constrained and time-sensitive data acquisition situations, low latency communication emerges as a crucial factor, making method proposed in this study highly effective.…”

Section: Future Workmentioning

confidence: 99%

Caching Method for Information-Centric Ad Hoc Networks Based on Content Popularity and Node Centrality

Koide,

Matsumoto,

Matsuzawa

2024

Electronics

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In recent years, most internet communications have focused on accessing content such as video, web services, and audio. Conversely, traditional Internet communications are inefficient because they are primarily designed for data transfer between hosts. In response, Information-Centric Networking (ICN) has emerged as a content-oriented networking model. The impact of ICN in reducing the location dependency of data and its high compatibility with ad hoc networks has led to research on realizing Information-Centric ad hoc Networks (ICANET). There has also been extensive research into caching content in the network, which is one of the features of ICN. In static networks, methods have been proposed to cache highly popular content in nodes that are more likely to be used for shortest paths. However, in dynamic networks, content with high popularity should be cached on nodes that are more likely to reach all nodes, as missing nodes need to be taken into account. In this study, we propose a cache control scheme for content caching in ICANET that utilizes both content popularity and the closeness centrality of nodes within the ad hoc network as indicators. To realise the proposed method, a new packet flow based on the Pending Interest Table (PIT) and Content Store (CS) was implemented in the forwarding strategy of ICN. The experiments used ndnSIM, a protocol implementation of NDN based on Network Simulator3, which is widely used in wireless network research. The experimental results showed that the cache hit rate could be increased by up to 4.5% in situations with low content bias. In the same situation, the response delay was also reduced by up to 28.3%.

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Section: Future Workmentioning

confidence: 99%