Urban pedestrian mobility for mobile wireless network simulation

Maeda, Kumiko; Uchiyama, Akira; Umedu, Takaaki; Yamaguchi, Hirozumi; Yasumoto, Keiichi; Higashino, Teruo

doi:10.1016/j.adhoc.2008.01.002

Cited by 40 publications

(23 citation statements)

References 35 publications

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“…We model cars as rectangular cuboids of size 2m × 4.5m × 1.5m. We consider a moderate pedestrian density of 0.08person/m 2 [23]. The link budget in our simulations is as in eq.…”

Section: Simulation Resultsmentioning

confidence: 99%

Demystifying 60GHz outdoor picocells

Zhu

Zhang

Marzi

et al. 2014

Proceedings of the 20th Annual International Conference on Mobile Computing and Networking

158

129

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Mobile network traffic is set to explode in our near future, driven by the growth of bandwidth-hungry media applications. Current capacity solutions, including buying spectrum, WiFi offloading, and LTE picocells, are unlikely to supply the orders-of-magnitude bandwidth increase we need. In this paper, we explore a dramatically different alternative in the form of 60GHz mmwave picocells with highly directional links. While industry is investigating other mmwave bands (e.g. 28GHz to avoid oxygen absorption), we prefer the unlicensed 60GHz band with highly directional, short-range links (∼100m). 60GHz links truly reap the spatial reuse benefits of small cells while delivering high per-user data rates and leveraging efforts on indoor 60GHz PHY technology and standards. Using extensive measurements on off-the-shelf 60GHz radios and systemlevel simulations, we explore the feasibility of 60GHz picocells by characterizing range, attenuation due to reflections, sensitivity to movement and blockage, and interference in typical urban environments. Our results dispel some common myths, and show that there are no fundamental physical barriers to high-capacity 60GHz outdoor picocells. We conclude by identifying open challenges and associated research opportunities.

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“…We model cars as rectangular cuboids of size 2m × 4.5m × 1.5m. We consider a moderate pedestrian density of 0.08person/m 2 [23]. The link budget in our simulations is as in eq.…”

Section: Simulation Resultsmentioning

confidence: 99%

Demystifying 60GHz outdoor picocells

Zhu

Zhang

Marzi

et al. 2014

Proceedings of the 20th Annual International Conference on Mobile Computing and Networking

158

129

View full text Add to dashboard Cite

show abstract

“…Moreover, the multiplication of these means of transport highlights the problem of vulnerable road users which has led to the introduction of the "principe de prudence" (principle of caution) toward them in the Highway Code of July 2008 ("The principle of caution of the user toward the most vulnerable" Act of 2008-754, July 30, 2008. The pedestrian is particularly exposed in the field of accidentology and has been the subject of studies using different approaches (Gaymard, Andrés, & Nzobounsana, 2011;Gaymard, Boucher, Nzobounsana, Greffier, & Fournela, 2012;Holland & Hill, 2007;Khan, Jawaid, Chotoni, & Luby, 1999;Krotosky & Trivedi, 2007;Maeda et al, 2009;Schmidt & Färber, 2009;Thompson, Fraser & Howarth, 1985). However, as Tom, Auberlet, and Brémond (2008) point out, pedestrian-vehicle interactions are not analyzed by most of the simulation models even though these interactions are crucial.…”

Section: Discussionmentioning

confidence: 99%

Pedestrian Representation Through the Analysis of Little Stories

Gaymard

2012

Psychology of Language and Communication

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This research is concerned with the problem of pedestrians as vulnerable road users. It falls within the study of social representations and risk. In this study, the representation of pedestrians by both young and experienced drivers was analyzed. A questionnaire of eleven little stories was devised and used to contextualize the environment more clearly. The participants had to make up an ending for the story according to their own behavior or feelings in each situation. Multiple correspondence analysis via the categorization of the verbatim accounts reveals homogeneity in the reactions and feelings of both groups. This homogeneity reflects the importance of civil attitudes in situations of interaction since they call on the notion of "respect. " Finally, the qualitative approach of the little stories highlights the place of emotions in specific driver-pedestrian interaction contexts.

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“…In [9], we have shown that there are large variations for performance and packet loss rates of multi-hop communications depending on node density distributions. In DTNs, it is known that node mobility and density strongly affect the reliability and performance of DTN applications (e.g.…”

Section: Related Workmentioning

confidence: 99%

Protocol Testing and Performance Evaluation for MANETs with Non-uniform Node Density Distribution

Hiromori

Umedu

Yamaguchi

et al. 2012

Lecture Notes in Computer Science

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Abstract. In this paper, we focus on Mobile Ad-hoc Networks (MANETs) with non-uniform node density distribution such as Vehicular Ad-hoc Networks (VANETs) and Delay Tolerant Networks (DTNs), and propose a technique for protocol testing and performance evaluation. In such MANETs, node density varies depending on locations and time, and it dynamically changes every moment. In the proposed method, we designate node density distributions and their dynamic variations in a target area. Then, we construct a graph called TestEnvGraph where all node density distributions are treated as its nodes and they are connected by edges whose weights denote differences of two node density distributions. We specify a set of edges to be tested in the graph, formulate a problem for efficiently reproducing all the given node density distributions and their dynamic variations as a rural postman problem, find its solution and use it as the order of reproduction of designated node density distributions and their variations. Protocol testing is carried out by reproducing node density distributions in the derived order. We have designed and developed a method and its tool for mobility generation on MANETs, which can reproduce any designated node density distribution and its dynamic variations in a target area. From our experiments for a VANET protocol, we have shown that our method can give a similar trend in network throughput and packet loss rates compared with realistic trace based protocol testing.

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Urban pedestrian mobility for mobile wireless network simulation

Cited by 40 publications

References 35 publications

Demystifying 60GHz outdoor picocells

Demystifying 60GHz outdoor picocells

Pedestrian Representation Through the Analysis of Little Stories

Protocol Testing and Performance Evaluation for MANETs with Non-uniform Node Density Distribution

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