CoCam: Real-time photo sharing based on opportunistic P2P networking

Toledano, E.; Sawada, D.; Lippman, Andrew; Holtzman, Henry; Casalegno, Federico

doi:10.1109/ccnc.2013.6488576

Cited by 4 publications

(3 citation statements)

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“…For example, in CoCam [17] application, users located in the same physical space users can automatically share the photos they create as well as receive photos from other users around them.…”

Section: B Mobile P2pmentioning

confidence: 99%

Overview Mobile Social Networking in Proximity (MSNP): Applications, Characteristics and Challenges

Wang

Tang

Jin³

et al. 2013

2013 IEEE 10th International Conference on High Performance Computing and Communications &Amp; 2013 IEEE International Conferen

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Recently, mobile social networking applications have gained tremendous attention, which free users from face-tomonitor life, while they still can share information and stay in touch with their friends on the go. However most MSN applications regard mobile terminals just as entry points to existing social networks, depend on centralized servers (for storage and processing of all application/context data) and continual Internet connectivity, even though mobile users are within proximity area (like campus, event spot, and community), and can directly exchange data through various wireless technologies (e.g., WiFi Direct, etc.). In this paper, we focus on thoroughly overviewing the mobile social networking in proximity (MSNP), including existing applications, characteristics and challenges. Our primary goal is to identify the characteristics, technical challenges and potential solution for future MSNP applications, capable to flexibly adapt to different application domains and deployment requirements.

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Section: B Mobile P2pmentioning

confidence: 99%

Overview Mobile Social Networking in Proximity (MSNP): Applications, Characteristics and Challenges

Wang

Tang

Jin³

et al. 2013

2013 IEEE 10th International Conference on High Performance Computing and Communications &Amp; 2013 IEEE International Conferen

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“…As a example, we can find, Firechat, a messaging application meant for festivals which became popular in 2014 in Iraq due to the government restrictions on Internet use 1 , and after that during the Hong Kong protests 2 . There are other examples such as the secure messaging application Briar (see https://briarproject.org) or CoCam [13], an application for image sharing in events. The experience shows that these messaging applications seem to be operative in open places with a moderate to high density of people.…”

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confidence: 99%

A SIR-based model for contact-based messaging applications supported by permanent infrastructure

Conejero¹,

Hernández-Orallo²,

Manzoni³

et al. 2019

Discrete &Amp; Continuous Dynamical Systems - S

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In this paper we focus on the study of coupled systems of ordinary differential equations (ODE's) describing the diffusion of messages between mobile devices. Communications in mobile opportunistic networks take place upon the establishment of ephemeral contacts among mobile nodes using direct communication. SIR (Sane, Infected, Recovered) models permit to represent the diffusion of messages using an epidemiological based approach. The question we analyse in this work is whether the coexistence of a fixed infrastructure can improve the diffusion of messages and thus justify the additional costs. We analyse this case from the point of view of dynamical systems, finding and characterising the admissible equilibrium of this scenario. We show that a centralised diffusion is not efficient when people density reaches a sufficient value. This result supports the interest in developing opportunistic networks for occasionally crowded places to avoid the cost of additional infrastructure.

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“…Firechat, as an example, 15 a messaging application meant for festivals, became popular in 2014 in Iraq due to the government restrictions on Internet use 1 , and after that during the Hong Kong protests 2 . There are anyway other examples, like Briar (see https://briarproject.org) which is a secure messaging application, or CoCam [2] for image sharing in events. Moreover, several supporting frameworks and 20 architectures are appearing, such as the Haggle project [3], a framework for autonomic and opportunistic computing, or AllJoyn, an open source, general networking framework from the Allseen Alliance (https://allseenalliance.org/).…”

Section: Introductionmentioning

confidence: 99%

Analytical evaluation of the performance of contact-Based messaging applications

et al. 2016

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Communications in mobile opportunistic networks, instead of using the Internet infrastructure, take place upon the establishment of ephemeral contacts among mobile nodes using direct communication. In this paper, we analytically model the performance of mobile opportunistic networks for contact-based messaging applications in city squares or gathering points, a key challenging topic that is required for the effective design of novel services. We take into account several social aspects such as: the density of people, the dynamic of people arriving and leaving a place, the size of the messages and the duration of the contacts. We base our models on Population Processes, an approach commonly used to represent the dynamics of biological populations. We study their stable equilibrium points and obtain analytical expressions for their resolution.The evaluations performed show that these models can reproduce the dynamics of message diffusion applications. We demonstrate that when the density of people increases, the effectiveness of the diffusion is improved. Regarding the arrival and departure of people, their impact is more relevant when the density of people is low. Finally, we prove that for large message sizes the effectiveness of the epidemic diffusion is reduced, and novel diffusion protocols should be considered.

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CoCam: Real-time photo sharing based on opportunistic P2P networking

Cited by 4 publications

References 1 publication

Overview Mobile Social Networking in Proximity (MSNP): Applications, Characteristics and Challenges

Overview Mobile Social Networking in Proximity (MSNP): Applications, Characteristics and Challenges

A SIR-based model for contact-based messaging applications supported by permanent infrastructure

Analytical evaluation of the performance of contact-Based messaging applications

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