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Article
Publication date: 14 March 2024

Marcel Peppel, Stefan Spinler and Matthias Winkenbach

The e-commerce boom presents new challenges for last-mile delivery (LMD), which may be mitigated by new delivery technologies. This paper evaluates the impact of mobile parcel…

Abstract

Purpose

The e-commerce boom presents new challenges for last-mile delivery (LMD), which may be mitigated by new delivery technologies. This paper evaluates the impact of mobile parcel lockers (MPL) on costs and CO2 equivalent (CO2e) emissions in existing LMD networks, which include home delivery and shipments to stationary parcel lockers.

Design/methodology/approach

To describe customers’ preferences, we design a multinomial logit model based on recipients’ travel distance to pick-up locations and availability at home. Based on route cost estimation, we define the operating costs for MPLs. We devise a mathematical model with binary decision variables to optimize the location of MPLs.

Findings

Our study demonstrates that integrating MPLs leads to additional cost savings of 8.7% and extra CO2e emissions savings of up to 5.4%. Our analysis of several regional clusters suggests that MPLs yield benefits in highly populous cities but may result in additional emissions in more rural areas where recipients drive longer distances to pick-ups.

Originality/value

This paper designs a suitable operating model for MPLs and demonstrates environmental and economic savings. Moreover, it adds recipients’ availability at home to receive parcels improving the accuracy of stochastic demand. In addition, MPLs are evaluated in the context of several regional clusters ranging from large cities to rural areas. Thus, we provide managerial guidance to logistics service providers how and where to deploy MPLs.

Details

International Journal of Physical Distribution & Logistics Management, vol. 54 no. 4
Type: Research Article
ISSN: 0960-0035

Keywords

Article
Publication date: 7 November 2008

Bartosz Belter, Artur Binczewski, Gino Carrozzo, Nicolla Ciulli, Eduard Escalona, George Markidis, Reza Nejabati, Dimitra Simeonidou, Maciej Stroiński, Anna Tzanakaki and Georgios Zervas

This article seeks to introduce the concept of the Grid‐GMPLS control plane architecture with focus on new services, models, and interoperability issues of Grid‐GMPLS (G2MPLS) and…

Abstract

Purpose

This article seeks to introduce the concept of the Grid‐GMPLS control plane architecture with focus on new services, models, and interoperability issues of Grid‐GMPLS (G2MPLS) and GMPLS control planes. The purpose of this activity is to design, implement and test extensions of the GMPLS Control Plane that can enable the paradigm of a G2MPLS network.

Design/methodology/approach

The approach deploys extended GMPLS implementations aiming to facilitate bandwidth provisioning to Grid users.

Findings

G2MPLS is a Network Control Plane architecture that implements the concept of Grid Network Services. GNS is a service that allows the provisioning of network and Grid resources in a single‐step through a set of integrated procedures. By providing a unified network/Grid infrastructure the control plane can adapt to the demands of applications having intensive requirements on both computational and network resources.

Research limitations/implications

The project delivers the prototype implementation of G2MPLS. Consideration should be given to involving the vendors of the optical equipment in the development process to incorporate the project findings into their operating systems.

Practical implications

The G2MPLS protocol stack has been designed to be compatible with the ASON/GMPLS architecture. This could lead to possible integration of Grids in the existing operational networks, by overcoming the current limitations of Grids running over dedicated networks with their own administrative procedures.

Originality/value

The paper provides the description of Grid Network Infrastructures with a common and transversal Control Plane approach based on G2MPLS, in which Grid resources and optical network resources are both controlled by the same Control Plane, seamlessly spanning the different Control and Management domains of the network.

Details

Campus-Wide Information Systems, vol. 25 no. 5
Type: Research Article
ISSN: 1065-0741

Keywords

Article
Publication date: 31 December 2006

Yu Wang and Jie Wu

Compared to the traditional wireless network, the multi‐hop ad hoc wireless network is self‐configurable, dynamic, and distributed. During the past few years, many routing…

Abstract

Compared to the traditional wireless network, the multi‐hop ad hoc wireless network is self‐configurable, dynamic, and distributed. During the past few years, many routing protocols have been proposed for this particular network environment. While in wired and optical networks, multi‐protocol label switching (MPLS) has clearly shown its advantages in routing and switching such as flexibility, high efficiency, scalability, and low cost. However MPLS is complex and does not consider the mobility issue for wireless networks, especially for ad hoc wireless networks. This paper migrates the label concept into the ad hoc network and provides a framework for the efficient label routing protocol(LRP) in such a network. The MAC layer is also optimized with LRP for shorter delay, power saving, and higher efficiency. The simulation results show that the delay is improved significantly with this cross‐layer routing protocol.

Details

International Journal of Pervasive Computing and Communications, vol. 2 no. 4
Type: Research Article
ISSN: 1742-7371

Keywords

Article
Publication date: 1 February 2004

Robert W. Kerbs

We have not seen an Internet‐based game that can be identified with the arrival of Internet gaming for the masses. Due to the foundational structure of the Internet, there…

Abstract

We have not seen an Internet‐based game that can be identified with the arrival of Internet gaming for the masses. Due to the foundational structure of the Internet, there probably will not be one anytime soon. The problem is that the underlying Internet protocol, IPv4, has not had a major update since its introduction in the early 1970s. Fortunately, in the mid‐1990s the standards‐based Internet Engineering Task Force began addressing IPv4’s deficiencies. The result of these efforts is a new version of IPv4 called IPv6. IPv6’s entry will present the Internet gaming community with many opportunities as well as challenges. One of biggest challenges is that the rollout of IPv6 will take years for completion necessitating its coexistence with IPv4 in a number of forms. This paper focuses on issues associated with this coexistence, transition mechanisms that will be used, and what the gaming community can do today to be better positioned as IPv6 becomes the mainstream Internet protocol.

Details

The Electronic Library, vol. 22 no. 1
Type: Research Article
ISSN: 0264-0473

Keywords

Article
Publication date: 8 May 2009

Carmen Mas Machuca, Øyvind Moe, Joerg Eberspächer, Monika Jaeger and Andreas Gladisch

The purpose of this paper is to propose a service cost model which can be used to evaluate the impact of different management functionalities or network platforms to the service

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Abstract

Purpose

The purpose of this paper is to propose a service cost model which can be used to evaluate the impact of different management functionalities or network platforms to the service cost.

Design/methodology/approach

Following the validation of the importance that OpEx has on the overall TCO, a classification of the costs is proposed, based on their relation to the network. Two main types of costs have been identified: network based costs and service based costs. Both cost types have been modeled as a set of interconnected processes based on the network and service life cycle respectively. Network and service cost models have been integrated into a single framework. These models have been implemented as Markov chains, which include the dynamic behavior of services. Two different methods for the implementation (analytical versus non‐analytical) have been compared from the implementation and computation time point of view. The proposed service model has been used in two case studies: cost comparison of different types of services on different platforms; and impact of the service type distribution on the overall service cost on different platforms.

Findings

This paper finds the utility that the proposed cost model has. It has been shown that the impact on the overall service cost that a particular network platform capability such as the possibility of establishing point to multipoint connections has.. The proposed network and service cost models can be used on different types of networks and services.

Originality/value

The paper presents a general service cost model that can be used to study the impact of any management functionality or network platform has on the service cost.

Details

info, vol. 11 no. 3
Type: Research Article
ISSN: 1463-6697

Keywords

Article
Publication date: 27 March 2020

Alisa Frik and Alexia Gaudeul

Many online transactions and digital services depend on consumers’ willingness to take privacy risks, such as when shopping online, joining social networks, using online banking…

Abstract

Purpose

Many online transactions and digital services depend on consumers’ willingness to take privacy risks, such as when shopping online, joining social networks, using online banking or interacting with e-health platforms. Their decisions depend on not only how much they would suffer if their data were revealed but also how uncomfortable they feel about taking such a risk. Such an aversion to risk is a neglected factor when evaluating the value of privacy. The aim of this paper is to propose an empirical method to measure both privacy risk aversion and privacy worth and how those affect privacy decisions.

Design/methodology/approach

The authors let individuals play privacy lotteries and derive a measure of the value of privacy under risk (VPR) and empirically test the validity of this measure in a laboratory experiment with 148 participants. Individuals were asked to make a series of incentivized decisions on whether to incur the risk of revealing private information to other participants.

Findings

The results confirm that the willingness to incur a privacy risk is driven by a complex array of factors, including risk aversion, self-reported value for private information and general attitudes to privacy (derived from surveys). The VPR does not depend on whether there is a preexisting threat to privacy. The authors find qualified support for the existence of an order effect, whereby presenting financial choices prior to privacy ones leads to less concern for privacy.

Practical implications

Attitude to risk in the domain of privacy decisions is largely understudied. In this paper, the authors take a first step toward closing this empirical and methodological gap by offering (and validating) a method for the incentivized elicitation of the implicit VPR and proposing a robust and meaningful monetary measure of the level of aversion to privacy risks. This measure is a crucial step in designing and implementing the practical strategies for evaluating privacy as a competitive advantage and designing markets for privacy risk regulations (e.g. through cyber insurances).

Social implications

The present study advances research on the economics of consumer privacy – one of the most controversial topics in the digital age. In light of the proliferation of privacy regulations, the mentioned method for measuring the VPR provides an important instrument for policymakers’ informed decisions regarding what tradeoffs consumers consider beneficial and fair and where to draw the line for violations of consumers’ expectations, preferences and welfare.

Originality/value

The authors present a novel method to measure the VPR that takes account of both the value of private information to consumers and their tolerance for privacy risks. The authors explain how this method can be used more generally to elicit attitudes to a wide range of privacy risks involving exposure of various types of private information.

Details

Journal of Consumer Marketing, vol. 37 no. 4
Type: Research Article
ISSN: 0736-3761

Keywords

Article
Publication date: 23 October 2007

Eduard Grasa, Sergi Figuerola, Albert López, Gabriel Junyent, Michel Savoie, Bill St Arnaud and Mathieu Lemay

Purpose – The purpose of this paper is to illustrate the advantages of using the UCLP software for network operators, advanced and regular end users in the research networking…

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Abstract

Purpose – The purpose of this paper is to illustrate the advantages of using the UCLP software for network operators, advanced and regular end users in the research networking community. Design/methodology/approach – This paper provides an example of the deployment of UCLP in the GÉANT2/National Research and Education Networks (NRENs) scenario, and compares how network operators, advanced users and regular end users would do their work, with and without UCLP. Findings – The paper provides high‐level technical information about UCLP as well as depicting the drivers for its use in the European research networking community. Research limitations/implications – This paper does not explain the details of the deployment of the software in the GÉANT2/National Research and Education Networks (NRENs) scenario, it just explains the benefits that the deployment of the software would provide. If the deployment was to be done today, some improvements to UCLP should be done, as well as support for more equipment vendors should be added. Practical implications – UCLP could provide more flexibility to the e‐science community if it was deployed over the European research networking infrastructure, because it would isolate network users from each other while providing them an unprecedented degree of control over the network. Originality/value – Nowadays, several control/management solutions for networks exist, but none that is capable of partitioning a physical network into slices and handoff its management to the users, like UCLP does. This is the first UCLP paper that studies a hypothetical deployment of UCLP in the European research networking scenario, and evaluates the drivers and implications of such a deployment.

Details

Internet Research, vol. 17 no. 5
Type: Research Article
ISSN: 1066-2243

Keywords

Article
Publication date: 12 August 2014

Andreiwid Sheffer Corrêa, Alexandre de Assis Mota, Lia Toledo Moreira Mota and Pedro Luiz Pizzigatti Corrêa

The purpose of this study is to present a system called NEBULOSUS, which is a fuzzy rule-based expert system for assessing the maturity level of an agency regarding technical…

Abstract

Purpose

The purpose of this study is to present a system called NEBULOSUS, which is a fuzzy rule-based expert system for assessing the maturity level of an agency regarding technical interoperability.

Design/methodology/approach

The study introduces the use of artificial intelligence and fuzzy logic to deal with the imprecision and uncertainty present in the assessment process. To validate the system proposed and demonstrate its operation, the study takes into account the Brazilian technical interoperability maturity model, based on the Brazilian Government Interoperability Framework (GIF).

Findings

With the system proposed and its methodology, it could be possible to increase the assessment process to management level and to provide decision-making support without worrying about technical details that make it complex and time-consuming. Moreover, NEBULOSUS is a standalone system that offers an easy-to-use, open and flexible structuring database that can be adapted by governments throughout the world. It will serve as a tool and contribute to governments’ expectations for continuous improvement of their technologies.

Originality/value

This study contributes toward filling a gap in general interoperability architectures, which is a means to provide an objective method to evaluate GIF adherence by governments. The proposed system allows governments to configure their technical models and GIF to assess information and communication technology resources.

Details

Transforming Government: People, Process and Policy, vol. 8 no. 3
Type: Research Article
ISSN: 1750-6166

Keywords

Article
Publication date: 8 June 2012

Sara C. Carvalho, Fátima Alves, Ulisses M. Azeiteiro and Pablo A. Meira‐Cartea

Environmental threats of immediate risk in areas such as coastal zones (CZ) have aroused new trends of citizenship and participatory democracy. The purpose of this paper is to…

Abstract

Purpose

Environmental threats of immediate risk in areas such as coastal zones (CZ) have aroused new trends of citizenship and participatory democracy. The purpose of this paper is to analyse elements within those trends, such as environmental culture, socio‐political context, dynamics of social associative movement and integration of local knowledge. It also aims to contribute to an overview of the opportunities and barriers found in considering socio‐cultural and educational challenges in CZ.

Design/methodology/approach

In this analysis, case studies of integrated coastal management occurring worldwide were selected and reviewed, considering several nuances of socio‐economic and political contexts of CZ. Experiences of public response to coastal catastrophes such the Prestige oil spill in Spain, are also described.

Findings

Whether implementing sustainable coastal management through either balanced systems (between large and small‐scale strategies) or through largely bottom‐up approaches, participation is detected as one of the main factors for a successful integrated approach. Principles such as participatory governance and social justice should be adopted in initial phases of sustainable management processes and preferably involve all of the implied actors of CZ.

Originality/value

The literature reviewed highlighted specific factors that have empirically contributed to participatory sustainability of CZ, integrating three dimensions of citizenship: education, society's dynamics and culture.

Details

Management of Environmental Quality: An International Journal, vol. 23 no. 4
Type: Research Article
ISSN: 1477-7835

Keywords

Article
Publication date: 8 August 2016

Nan Zhang, Heikki Hämmäinen and Hannu Flinck

This paper models the cost efficiency of service function chaining (SFC) in software-defined LTE networks and compares it with traditional LTE networks.

Abstract

Purpose

This paper models the cost efficiency of service function chaining (SFC) in software-defined LTE networks and compares it with traditional LTE networks.

Design/methodology/approach

Both the capital expenditure (CAPEX) and operational expenditure (OPEX) of the SFC are quantified using an average Finnish mobile network in 2015 as a reference. The modeling inputs are gathered through semi-structured interviews with Finnish mobile network operators (MNO) and network infrastructure vendors operating in the Finnish market.

Findings

The modeling shows that software-defined networking (SDN) can reduce SFC-related CAPEX and OPEX significantly for an average Finnish MNO in 2015. The analysis on different types of MNOs implies that a MNO without deep packet inspection sees the biggest cost savings compared to other MNO types.

Practical implications

Service function investments typically amount to 5-20 per cent of the overall MNO network investments, and savings in SFC may impact highly on the cost structure of a MNO. In addition, SFC acts as both a business interface, which connects the local MNOs with global internet service providers, and as a technical interface, where the 3GPP and IETF standards meet. Thus, the cost efficient operation of SFC may bring competitive advantages to the MNO.

Originality/value

The results show solid basis of network-related cost savings in SFC and contributes to MNOs making cost conscious investment decisions. In addition, the results act as a baseline scenario for further studies that combine SDN with virtualization to re-optimize network service functions.

Details

info, vol. 18 no. 5
Type: Research Article
ISSN: 1463-6697

Keywords

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