A review of routing protocols in internet of vehicles and their challenges

Sensor Review ◽  
2019 ◽  
Vol 39 (1) ◽  
pp. 58-70 ◽  
Author(s):  
Oussama Senouci ◽  
Zibouda Aliouat ◽  
Saad Harous

Purpose This paper is a review of a number routing protocols in the internet of vehicles (IoV). IoV emphasizes information interaction among humans, vehicles and a roadside unit (RSU), within which routing is one of the most important steps in IoV network. Design/methodology/approach In this paper, the authors have summarized different research data on routing protocols in the IoV. Several routing protocols for IoV have been proposed in the literature. Their classification is made according to some criteria such as topology-based, position-based, transmission strategy and network structure. This paper focuses on the transmission strategy criteria. There exist three types of protocols that are based on this strategy: unicast protocol, broadcast protocols and multicast protocols. This later type is classified into two subclasses: geocast and cluster-based protocols. The taxonomy of the transmission strategy is presented in this study. We discuss the advantages and disadvantages of each type with a general comparison between the five types. Findings The authors can deduce that many challenges are encountered when designing routing protocols for IoV. Originality/value A simple and well-explained presentation of the functioning of the IoV is provided with a comparison among each categories of protocols is well presented along with the advantages and disadvantages of each type. The authors examined the main problems encountered during the design of IoV routing protocol, such as the quick change of topology, the frequent disconnection, the big volume of data to be processed and stored in the IoV, and the problem of network fragmentation. This work explores, compares existing routing protocols in IoV and provides a critical analysis. For that, the authors extract the challenges and propose future perspectives for each categories of protocols.

2016 ◽  
Vol 33 (1) ◽  
pp. 21-22 ◽  
Author(s):  
Martin Kesselman

Purpose – This article examines Current CITE-ings from the Popular and Trade Computing Press, Telework and Telecommuting Design/methodology/approach – The methodology adopted is a literature review. Findings – Readily available technologies now allow librarians to perform most of their work-offsite. Some traditional building-based services such as reference, have been taken over by virtual reference and now even instruction offers options on par with or even better than classroombased questions such as a webinar that can be viewed and reviewed at any time or by having librarians embedded into various courseware packages. Researchlimitations/implications – Librarians no longer need be limited to a single library; groups of subject librarians can work together in the cloud to provide services to multiple universities. Originality/value – This article collates some articles from the non-library literature that mayprovide some ideas and review advantages and disadvantages for both the library and employee


2015 ◽  
Vol 33 (4) ◽  
pp. 497-504 ◽  
Author(s):  
IdaMae Louise Craddock

Purpose – The purpose of this paper is to describe the implementation of a mobile makerspace program in a public school setting. Insights, challenges, successes, projects as well as recommendations will be shared. Design/methodology/approach – This paper describes a mobile makerspace program in a public high school in Virginia. It discusses the growth of mobile making, the advantages and disadvantages of mobility, and how the program was implemented. Findings – Mobile makerspaces are a fast-growing manifestation of maker culture. It is possible to have a makerspace in a public school and take the maker culture to other schools in the area. Having a steady supply of students or library interns that are willing to travel to other schools is critical. Originality/value – Makerspaces in libraries is still a relatively new phenomenon. While the research is coming on stationary makerspaces, mobile making is a new horizon for the maker movement. This paper seeks to provide a description of one such program.


2017 ◽  
Vol 51 (1) ◽  
pp. 82-98 ◽  
Author(s):  
Nina Åkestam ◽  
Sara Rosengren ◽  
Micael Dahlen

Purpose This paper aims to investigate whether portrayals of homosexuality in advertising can generate social effects in terms of consumer-perceived social connectedness and empathy. Design/methodology/approach In three experimental studies, the effects of advertising portrayals of homosexuality were compared to advertising portrayals of heterosexuality. Study 1 uses a thought-listing exercise to explore whether portrayals of homosexuality (vs heterosexuality) can evoke more other-related thoughts and whether such portrayals affect consumer-perceived social connectedness and empathy. Study 2 replicates the findings while introducing attitudes toward homosexuality as a boundary condition and measuring traditional advertising effects. Study 3 replicates the findings while controlling for gender, perceived similarity and targetedness. Findings The results show that portrayals of homosexuality in advertising can prime consumers to think about other people, thereby affecting them socially. In line with previous studies of portrayals of homosexuality in advertising, these effects are moderated by attitudes toward homosexuality. Research limitations/implications This paper adds to a growing body of literature on the potentially positive extended effects of advertising. They also challenge some of the previous findings regarding homosexuality in advertising. Practical implications The finding that portrayals of homosexuality in advertising can (at least, temporarily) affect consumers socially in terms of social connectedness and empathy should encourage marketers to explore the possibilities of creating advertising that benefits consumers and brands alike. Originality/value The paper challenges the idea that the extended effects of advertising have to be negative. By showing how portrayals of homosexuality can increase social connectedness and empathy, it adds to the discussion of the advantages and disadvantages of advertising on a societal level.


The overall automobile industry in the world has encountered remarkable growth, vehicle increases traffic density which seems in increasing accidents. Thus the automobile Industries, researchers and government are shifted their focus in the direction of improving on-road safety instead of improving the condition of the roads. The top development in the wireless technologies emerged a diverse new sort of networks together with Vehicular Ad Hoc Network, VANET uses wireless network technology wherein driving gets safer by inter-vehicle communication. Using this technology, automobiles are not only envisioned to contact between each other, but also to get information from and transmit data to infrastructural units. In this, we have discussed about the traits and applications of VANET along with routing protocols. The routing protocols states how two communiqué individuals interchange information which covers the methods to generate path, to retain the route or improve from routing fiasco. In this we have explained two routing protocols i.e. Topology based routing protocol and Geographic (Position-based) routing protocol with its types, advantages and disadvantages as well as we have examined the performance of AODV and GPSR routing protocols using quality matrix.


2021 ◽  
Vol 27 (2) ◽  
pp. 638-657
Author(s):  
Fredrik Milani ◽  
Luciano Garcia-Banuelos ◽  
Svitlana Filipova ◽  
Mariia Markovska

PurposeBlockchain technology is increasingly positioned as a promising and disruptive technology. Such a promise has attracted companies to explore how blockchain technology can be used to gain significant benefits. Process models play a cardinal role when seeking to improve business processes as they are the foundation of process analysis and redesign. This paper examines how blockchain-oriented processes can be conceptually modelled with activity- (BPMN) and artifact-centric (CMMN) modelling paradigms.Design/methodology/approachThis paper discusses how commonly occurring patterns, specific to block-chain-based applications, can be modelled with BPMN and CMMN. Furthermore, the advantages and disadvantages of both notations for accurately representing blockchain-specific patterns are discussed.FindingsThe main finding of this paper is that neither BPMN nor CMMN can adequately and accurately represent certain patterns specific for blockchain-oriented processes. BPMN, while supporting most of the patterns, does not provide sufficient support to represent tokenization. CMMN, on the other hand, does not provide support to distinguish between activities executed and data stored on-chain versus off-chain.Originality/valueThe paper provides insight into the strengths and weaknesses of BPMN and CMMN for modelling processes to be supported by blockchain. This will serve to aid analysts to produce better process models for communication purposes and, thereby, facilitate development of blockchain-based solutions.


2020 ◽  
Vol 41 (6/7) ◽  
pp. 565-577
Author(s):  
Magdaline Wanjiru Mungai ◽  
Selikem Sebuava Dorvlo ◽  
Asaph Nuwagirya ◽  
Marlene Holmner

PurposeCopyright exceptions promote access to information by users without breaching copyright. This research paper reviews copyright exceptions in Kenya, Ghana and Uganda and how they influence access to information in libraries. Objectives were to find out the implications of copyright exceptions in Kenya, Ghana and Uganda; advantages and disadvantages of copyright exceptions for libraries; and recommend best practices of copyright exceptions.Design/methodology/approachThis is a desktop research reviewing empirical literature and incorporating authors' experiential knowledge in their information profession. Authors have interrogated copyright exceptions in their home countries' copyright acts, policy documents and peer-reviewed articles on copyright and information access. They analysed the documents as stated to deduce key recommendations regarding ideal copyright exceptions.FindingsThe study established that copyright exceptions do not always improve access as intended because they are inadequate, ignoring key library functions. Major inconsistencies exist in the exceptions in these countries; key terminologies have not been defined; and the concept is not well understood. Librarians lack sufficient knowledge on exceptions, hence lack self-efficacy in educating users. Kenya, Ghana and Uganda should improve and harmonize their copyright acts to cover key library functions.Originality/valueThis study provides in-depth analysis of historical and modern practices of copyright exceptions in the three countries revealing useful comparative insights. Previous studies looked at the issues from individual countries perspective.


2019 ◽  
Vol 75 (3) ◽  
pp. 530-549
Author(s):  
Reijo Savolainen

Purpose Drawing on the ideas of conversation analysis (CA), the purpose of this paper is to elaborate the picture of dialogical information seeking and sharing. To this end, information seeking and sharing are approached as interactive online talk occurring in an asynchronous discussion forum. Design/methodology/approach The conceptual framework is based on the elaboration of Schegloff’s model for sequence organisation in spoken conversation. As a result, ten categories constitutive of asynchronous online talk were identified. It was further examined how online talk of this type is structured by expanded question – answers adjacency pairs and how such pairs are constitutive of dialogical information seeking and sharing. This question was explored by scrutinising 20 discussion threads downloaded from a do-it-yourself related online forum. Findings Four ideal typical patterns of asynchronous online talk were identified. Answering the question is a basic pattern of online talk, based on the provision of responses to an individual request. Specifying the answer, broadening the discussion topic and challenging the answer represent more sophisticated patterns incorporating post-expansions of diverse kind. Research limitations/implications As the study focusses on four patterns constitutive of online talk occurring in a particular domain, the findings cannot be generalised to depict the phenomena of dialogical information interaction as a whole. Further research is needed to scrutiny the particular features of asynchronous online talk in the context of dialogical information interaction. Originality/value The paper pioneers by examining the potential of CA in the micro-level study of dialogical information seeking and sharing structured by expanded adjacency pairs. The findings also identify the limitations of the conversation analytic methodology in the study of asynchronous online discourse.


2019 ◽  
Vol 19 (2) ◽  
pp. 132-145
Author(s):  
Jeremy Northcote ◽  
Tarryn Phillips

Purpose The purpose of this paper is to evaluate the advantages and disadvantages of peer researchers in participant observation. Design/methodology/approach The research involved interviews with 11 fieldworkers aged 18–25 years. Findings The method improves access to settings and provides useful context information on participants. Research limitations/implications It is a useful method in situations where normal access to participants and settings is problematic. Originality/value The paper is the first ever evaluation of supervised peer research (as opposed to peer-led research).


2015 ◽  
Vol 57 (6) ◽  
pp. 673-684 ◽  
Author(s):  
Leopold Bayerlein

Purpose – The purpose of this paper is to discuss major criticisms of traditional undergraduate accounting programmes and to introduce virtual internships as a curriculum innovation that addresses these criticisms. Design/methodology/approach – The main aim of the paper is to inspire curriculum innovation in accounting programmes though the introduction and discussion of virtual internships as a contemporary teaching model. Findings – The paper provides a detailed outline of the virtual internship model, its advantages and disadvantages, and its development in practice. Originality/value – The paper is likely to be most relevant for academics in undergraduate accounting programmes because it provides a practical guide to the development of this curriculum innovation.


2015 ◽  
Vol 16 (1) ◽  
pp. 239-254 ◽  
Author(s):  
Manfred Wondrak ◽  
Astrid Segert

Purpose – The purpose of this paper is to study current problems of implementing Diversity Management (DM) in businesses and presents a concept for measuring and estimating a value for diversity interventions. Design/methodology/approach – An intellectual capital approach is used to identify a matrix of problems while implementing DM. To address the accounting problem for DM, advantages and disadvantages of the Diversity Scorecard are discussed and issues that require further conceptual development are identified. Findings – Understanding DM as a part of intellectual capital helps solve accounting problems. The tests of the concept of Diversity Impact Navigator show that measuring DM at this stage requires a simple design, that using key indicators forces diversity interventions and that the process of valuation increases the understanding of DM by all stakeholders and thus its economic legitimation. Originality/value – A newly developed concept helps solve the problem of measurement and valuation of DM. The paper presents the first test results.


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