Study on the potential for delay tolerant networks by health workers in low resource settings

Syed-Abdul, Shabbir; Scholl, Jeremiah; Lee, Peisan; Jian, Wen-Shan; Liou, Der-Ming; Li, Yu-Chuan

doi:10.1016/j.cmpb.2011.11.004

Cited by 22 publications

(10 citation statements)

References 8 publications

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“…High bandwidth, satellite links are sometimes proposed for international telemedicine, but in practice useful telemedicine can be performed using low bandwidth, store-and-forward techniques, such as email and web-messaging (2, 3). Indeed, so-called delay tolerant networking appears to be an attractive potential method of obtaining network connectivity in low-resource settings (6). …”

Section: Discussionmentioning

confidence: 99%

Feasibility of a clearing house for improved cooperation between telemedicine networks delivering humanitarian services: acceptability to network coordinators

Wootton

Bonnardot

Geissbühler

et al. 2012

Global Health Action

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BackgroundTelemedicine networks, which deliver humanitarian services, sometimes need to share expertise to find particular experts in other networks. It has been suggested that a mechanism for sharing expertise between networks (a ‘clearing house’) might be useful.ObjectiveTo propose a mechanism for implementing the clearing house concept for sharing expertise, and to confirm its feasibility in terms of acceptability to the relevant networks.DesignWe conducted a needs analysis among eight telemedicine networks delivering humanitarian services. A small proportion of consultations (5–10%) suggested that networks may experience difficulties in finding the right specialists from within their own resources. With the assistance of key stakeholders, many of whom were network coordinators, various methods of implementing a clearing house were considered. One simple solution is to establish a central database holding information about consultants who have agreed to provide help to other networks; this database could be made available to network coordinators who need a specialist when none was available in their own network.ResultsThe proposed solution was examined in a desktop simulation exercise, which confirmed its feasibility and probable value.ConclusionThis analysis informs full-scale implementation of a clearing house, and an associated examination of its costs and benefits.

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Section: Discussionmentioning

confidence: 99%

Feasibility of a clearing house for improved cooperation between telemedicine networks delivering humanitarian services: acceptability to network coordinators

Wootton

Bonnardot

Geissbühler

et al. 2012

Global Health Action

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“…Thus, history gathering should be an adaptive process in such a way that it can select the statistical methods for acquiring node contact information with respect to the context of underlying network. In a low resource setting with limited mobility, the physical transport of digital data at a frequency of less than once per week should still be acceptable for services that can tolerate such delayed notification of results [25]. Furthermore, the validity of history decays with the passage of time and particularly sparse network suffer this decay in quality.…”

Section: Discussionmentioning

confidence: 99%

Analyzing History Quality for Routing Purposes in Opportunistic Network Using Max-Flow

Islam

Waldvogel

2012

WET

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Most of the existing opportunistic network routing protocols are based on some type of utility function that is directly or indirectly dependent on the past behavior of devices. The past behavior or history of a device is usually referred to as contacts that the device had in the past. Whatever may be the metric of history, most of these routing protocols work on the realistic premise that node mobility is not truly random. In contrast, there are several oracles based methods where such oracles assist these methods to gain access to information that is unrealistic in the real world. Although, such oracles are unrealistic, they can help to understand the nature and behavior of underlying networks. In this paper, we have analyzed the gap between these two extremes. We have performed max-flow computations on three different opportunistic networks and then compared the results by performing max-flow computations on history generated by the respective networks. We have found that the correctness of the history based prediction of history is dependent on the dense nature of the underlying network. Moreover, the history based prediction can deliver correct paths but cannot guarantee their absolute reliability.

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“…According to [4], DTNs are useful in e-health scenarios where network access is limited. Therefore, most research so far is focused on e-health applications for developing areas.…”

Section: B Delay Tolerant Networkmentioning

confidence: 99%

Delay tolerant handover for heterogeneous networks

Begerow

Krug

Rubaye

et al. 2014

39th Annual IEEE Conference on Local Computer Networks

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Intermittent connectivity is one major challenge for mobile nodes that move between different networks. Existing handover procedures are able to maintain the connectivity, if the communication ranges of the networks overlap. Otherwise, the connection will be lost. This is especially problematic for ehealth applications, when emergency physicians are on the way to a patient and need to stay in contact with him during the journey. Delay tolerant networks provide an option to maintain at least asynchronous communication under such conditions. But the whole network has to support the corresponding protocols, even if they are not needed in fully connected parts of the network. Therefore, we present an approach to provide handover functionality which allows nodes to switch to delay tolerant transmission seamlessly. We will discuss some conceptual aspects before presenting our solution and show the feasibility of our approach for an e-health scenario.

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Study on the potential for delay tolerant networks by health workers in low resource settings

Cited by 22 publications

References 8 publications

Feasibility of a clearing house for improved cooperation between telemedicine networks delivering humanitarian services: acceptability to network coordinators

Feasibility of a clearing house for improved cooperation between telemedicine networks delivering humanitarian services: acceptability to network coordinators

Analyzing History Quality for Routing Purposes in Opportunistic Network Using Max-Flow

Delay tolerant handover for heterogeneous networks

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