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Article
Publication date: 18 May 2020

Sasi B. Swapna and R. Santhosh

The miniscule wireless sensor nodes, engaged in the wide range of applications for its capability of monitoring the physical changes around, requires an improved routing strategy…

Abstract

Purpose

The miniscule wireless sensor nodes, engaged in the wide range of applications for its capability of monitoring the physical changes around, requires an improved routing strategy with the befitting sensor node arrangement that plays a vital part in ensuring a completeness of the network coverage.

Design/methodology/approach

This paves way for the reduced energy consumption, the enhanced network connections and network longevity. The conventional methods and the evolutionary algorithms developed for arranging of the node ended with the less effectiveness and early convergence with the local optimum respectively.

Findings

The paper puts forward the befitting arrangement of the sensor nodes, cluster-head selection and the delayless routing using the ant lion (A-L) optimizer to achieve the substantial coverage, connection, the network-longevity and minimized energy consumption.

Originality/value

The further performance analysis of the proposed system is carried out with the simulation using the network simulator-2 and compared with the genetic algorithm and the particle swarm optimization algorithm to substantiate the competence of the proposed routing method using the ant lion optimization.

Details

International Journal of Intelligent Unmanned Systems, vol. 9 no. 2
Type: Research Article
ISSN: 2049-6427

Keywords

Article
Publication date: 17 May 2023

Ishita Seth, Kalpna Guleria and Surya Narayan Panda

The internet of vehicles (IoV) communication has recently become a popular research topic in the automotive industry. The growth in the automotive sector has resulted in…

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Abstract

Purpose

The internet of vehicles (IoV) communication has recently become a popular research topic in the automotive industry. The growth in the automotive sector has resulted in significant standards and guidelines that have engaged various researchers and companies. In IoV, routing protocols play a significant role in enhancing communication safety for the transportation system. The high mobility of nodes in IoV and inconsistent network coverage in different areas make routing challenging. This paper aims to provide a lane-based advanced forwarding protocol for internet of vehicles (LAFP-IoV) for efficient data distribution in IoV. The proposed protocol’s main feature is that it can identify the destination zone by using position coordinates and broadcasting the packets toward the direction of destination. The novel suppression technique is used in the broadcast method to reduce the network routing overhead.

Design/methodology/approach

The proposed protocol considers the interferences between different road segments, and a novel lane-based forwarding model is presented. The greedy forwarding notion, the broadcasting mechanism, and the suppression approach are used in this protocol to reduce the overhead generated by standard beacon forwarding procedures. The SUMO tool and NS-2 simulator are used for the vehicle's movement pattern and to simulate LAFP-IoV.

Findings

The simulation results show that the proposed LAFP-IoV protocol performs better than its peer protocols. It uses a greedy method for forwarding data packets and a carry-and-forward strategy to recover from the local maximum stage. This protocol's low latency and good PDR make it ideal for congested networks.

Originality/value

The proposed paper provides a unique lane-based forwarding for IoV. The proposed work achieves a higher delivery ratio than its peer protocols. The proposed protocol considers the lanes while forwarding the data packets applicable to the highly dense scenarios.

Article
Publication date: 5 April 2022

Vimala Dayalan and Manikandan Kuppusamy

The paper aims to introduce an efficient routing algorithm for wireless sensor networks (WSNs). It proposes an improved evaporation rate water cycle (improved ER-WC) algorithm and

Abstract

Purpose

The paper aims to introduce an efficient routing algorithm for wireless sensor networks (WSNs). It proposes an improved evaporation rate water cycle (improved ER-WC) algorithm and outlining the systems performance in improving the energy efficiency of WSNs. The proposed technique mainly analyzes the clustering problem of WSNs when huge tasks are performed.

Design/methodology/approach

This proposed improved ER-WC algorithm is used for analyzing various factors such as network cluster-head (CH) energy, CH location and CH density in improved ER-WCA. The proposed study will solve the energy efficiency and improve network throughput in WSNs.

Findings

This proposed work provides optimal clustering method for Fuzzy C-means (FCM) where efficiency is improved in WSNs. Empirical evaluations are conducted to find network lifespan, network throughput, total network residual energy and network stabilization.

Research limitations/implications

The proposed improved ER-WC algorithm has some implications when different energy levels of node are used in WSNs.

Practical implications

This research work analyzes the nodes’ energy and throughput by selecting correct CHs in intra-cluster communication. It can possibly analyze the factors such as CH location, network CH energy and CH density.

Originality/value

This proposed research work proves to be performing better for improving the network throughput and increases energy efficiency for WSNs.

Details

International Journal of Intelligent Computing and Cybernetics, vol. 16 no. 1
Type: Research Article
ISSN: 1756-378X

Keywords

Article
Publication date: 1 January 1996

John E. White, Matthew J. Gorton and Ian Chaston

The growing importance of small‐ and medium‐sized enterprises (SMEs) in high‐technology innovation and the importance of innovation in maintaining competitive advantage has been…

Abstract

The growing importance of small‐ and medium‐sized enterprises (SMEs) in high‐technology innovation and the importance of innovation in maintaining competitive advantage has been acknowledged. The possibilities of co‐operation between high‐technology SMEs as a mechanism for enhancing individual firm growth is considered. The current stock of empirical evidence on high‐technology SMEs is outlined and the fact that few small firms achieve substantial growth highlighted. The major barriers to growth which lie behind this outcome are considered. The possibilities of networking, in its various forms, are considered as a facilitating medium for aiding business growth, with particular attention paid to high intensity co‐operative arrangements. The need for heterogeneous skill possession is emphasized, and how environments comprising homogeneous core competencies make networking an inappropriate solution for business growth. The existing empirical data on SME networking is considered and the relative costs and benefits of membership tabulated on the basis of network type. This leads on to an analysis of how beneficial, long‐term arrangements between actors may not occur in the market because of short‐term risks associated with other party(ies) defecting, as can be modelled within a prisoner's dilemma game theory structure. The final section discusses the possible role for network brokers in lessening these risks and aiding the development of mutually beneficial, growth‐oriented relationships between high‐technology SMEs.

Details

Journal of Small Business and Enterprise Development, vol. 3 no. 1
Type: Research Article
ISSN: 1462-6004

Article
Publication date: 11 April 2018

Hazel Hall, Peter Cruickshank and Bruce Ryan

The purpose of this paper is to report the results from a study that investigated the extent to which an intervention to develop a community of library and information science…

Abstract

Purpose

The purpose of this paper is to report the results from a study that investigated the extent to which an intervention to develop a community of library and information science (LIS) researchers – the Developing Research Excellence and Methods (DREaM) project – was successful in meeting its main objective three years after its implementation. Of particular interest are factors that support or hinder network longevity.

Design/methodology/approach

Data were collected by online survey/telephone and focus group. From quantitative data, a social network analysis (SNA) and network diagrams were generated. Focus group discussions were recorded and transcribed, and data from these were analysed manually.

Findings

Three years after the end of its formal funding period, DREaM endured as a loose but persistent network. Social ties were more important than work ties, and network members with the highest network centrality held roles in academic institutions. Physical proximity between members was important to the maintenance of network ties. Actor status did not appear to have a bearing on network centrality.

Research limitations/implications

Discussion is limited to consideration of community development amongst core members of the network only. The “manufactured” nature of the DREaM network and unique context in which it was formed have implications for the generalisibility of the findings reported.

Practical implications

Social infrastructure is key to the long-term health of a network initiative. Continued ad hoc support would strengthen it further.

Originality/value

The findings add to understanding of factors important to the development of scholarly and learning communities. They extend contributions of earlier work that has deployed SNA techniques in LIS research and research in other fields.

Article
Publication date: 1 November 2005

Qinglan Li, Jonathan Beaver, Ahmed Amer, Panos K. Chrysanthis, Alexandros Labrinidis and Ganesh Santhanakrishnan

Wireless sensor networks are expected to be an integral part of any pervasive computing environment. This implies an ever‐increasing need for efficient energy and resource…

Abstract

Wireless sensor networks are expected to be an integral part of any pervasive computing environment. This implies an ever‐increasing need for efficient energy and resource management of both the sensor nodes, as well as the overall sensor network, in order to meet the expected quality of data and service requirements. There have been numerous studies that have looked at the routing of data in sensor networks with the sole intention of reducing communication power consumption. However, there has been comparatively little prior art in the area of multi‐criteria based routing that exploit both the semantics of queries and the state of sensor nodes to improve network service longevity. In this paper, we look at routing in sensor networks from this perspective and propose an adaptive multi‐criteria routing protocol. Our algorithm offers automated reconfiguration of the routing tree as demanded by variations in the network state to meet application service requirements. Our experimental results show that our approach consistently outperforms, in terms of Network Lifetime and Coverage, the leading semantic‐based routing algorithm which reconfigures the routing tree at fixed periods.

Details

International Journal of Pervasive Computing and Communications, vol. 1 no. 4
Type: Research Article
ISSN: 1742-7371

Keywords

Article
Publication date: 10 April 2009

Xu‐Xun Liu, Yang Cao and Xiao‐Wei Chen

The purpose of this paper is to search an energy balance routing in the wireless sensor networks (WSN) and lengthen the life of the networks.

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Abstract

Purpose

The purpose of this paper is to search an energy balance routing in the wireless sensor networks (WSN) and lengthen the life of the networks.

Design/methodology/approach

To save energy in the WSN, some routing protocols search routing with the minimum total energy consumption of the network, and others reduce data redundancy by data aggregation. But if the distribution of energy consumption was not even, the energy of some nodes would be exhausted rapidly and thus the whole network would break down. Thus, an energy balance routing notion, including communication energy cost of the routing, remaining energy of communication sensors and sensor load have been involved. Then a new algorithm, mouse colony optimization and simulated annealing (SA), is advanced to solve the problem of energy balance routing in the network.

Findings

The energy balance routing, based on mouse colony optimization and SA, performs well and yields better performance than other congener algorithms.

Research limitations/implications

The appointed times of the algorithm is the main limitation which increase the complexity of the algorithm.

Practical implications

A very useful routing in wireless sensor networks.

Originality/value

The new approach of energy balance routing notion, including communication energy cost of the routing, remaining energy of communication sensors and sensor load. The new algorithm, mouse colony optimization algorithm, simulated mice action, was proposed to solve the energy balance routing of the network.

Details

Kybernetes, vol. 38 no. 3/4
Type: Research Article
ISSN: 0368-492X

Keywords

Book part
Publication date: 24 August 2011

Breda Kenny and John Fahy

The study this chapter reports focuses on how network theory contributes to the understanding of the internationalization process of SMEs and measures the effect of network…

Abstract

The study this chapter reports focuses on how network theory contributes to the understanding of the internationalization process of SMEs and measures the effect of network capability on performance in international trade and has three research objectives.

The first objective of the study relates to providing new insights into the international market development activities through the application of a network perspective. The chapter reviews the international business literature to ascertain the development of thought, the research gaps, and the shortcomings. This review shows that the network perspective is a useful and popular theoretical domain that researchers can use to understand international activities, particularly of small, high technology, resource-constrained firms.

The second research objective is to gain a deeper understanding of network capability. This chapter presents a model for the impact of network capability on international performance by building on the emerging literature on the dynamic capabilities view of the firm. The model conceptualizes network capability in terms of network characteristics, network operation, and network resources. Network characteristics comprise strong and weak ties (operationalized as foreign-market entry modes), relational capability, and the level of trust between partners. Network operation focuses on network initiation, network coordination, and network learning capabilities. Network resources comprise network human-capital resources, synergy-sensitive resources (resource combinations within the network), and information sharing within the network.

The third research objective is to determine the impact of networking capability on the international performance of SMEs. The study analyzes 11 hypotheses through structural equations modeling using LISREL. The hypotheses relate to strong and weak ties, the relative strength of strong ties over weak ties, and each of the eight remaining constructs of networking capability in the study. The research conducts a cross-sectional study by using a sample of SMEs drawn from the telecommunications industry in Ireland.

The study supports the hypothesis that strong ties are more influential on international performance than weak ties. Similarly, network coordination and human-capital resources have a positive and significant association with international performance. Strong ties, weak ties, trust, network initiation, synergy-sensitive resources, relational capability, network learning, and information sharing do not have a significant association with international performance. The results of this study are strong (R2=0.63 for performance as the outcome) and provide a number of interesting insights into the relations between collaboration or networking capability and performance.

This study provides managers and policy makers with an improved understanding of the contingent effects of networks to highlight situations where networks might have limited, zero, or even negative effects on business outcomes. The study cautions against the tendency to interpret networks as universally beneficial to business development and performance outcomes.

Details

Interfirm Networks: Theory, Strategy, and Behavior
Type: Book
ISBN: 978-1-78052-024-7

Keywords

Article
Publication date: 26 June 2009

Andrew Keenan and Ali Shiri

Social websites have become a major medium for social interaction. From Facebook to MySpace to emergent sites like Twitter, social websites are increasing exponentially in user…

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Abstract

Purpose

Social websites have become a major medium for social interaction. From Facebook to MySpace to emergent sites like Twitter, social websites are increasing exponentially in user numbers and unique visits every day. How do these websites encourage sociability? What features or design practices enable users to socialize with other users? The purpose of this paper is to explore sociability on the social web and details how different social websites encourage their users to interact.

Design/methodology/approach

Four social websites (Facebook, MySpace, LinkedIn and Twitter) were examined from a user study perspective. After thoroughly participating on the websites, a series of observations were recorded from each experience. These experiences were then compared to understand the different approaches of each website.

Findings

Social websites use a number of different approaches to encourage sociability amongst their users. Facebook promotes privacy and representing “real world” networks in web environment, while MySpace promotes publicity and representing both real world and virtual networks in a web environment. Niche websites like LinkedIn and Twitter focus on more specific aspects of community and technology, respectively.

Originality/value

A comparison of different models of sociability does not yet exist. This study focuses specifically on what makes social websites “social.”

Details

Library Review, vol. 58 no. 6
Type: Research Article
ISSN: 0024-2535

Keywords

Article
Publication date: 22 November 2010

Hen‐I Yang, Chao Chen, Bessam Abdulrazak and Sumi Helal

A decade and a half after the debut of pervasive computing, a large number of prototypes, applications, and interaction interfaces have emerged. However, there is a lack of…

Abstract

Purpose

A decade and a half after the debut of pervasive computing, a large number of prototypes, applications, and interaction interfaces have emerged. However, there is a lack of consensus about the best approaches to create such systems or how to evaluate them. To address these issues, this paper aims to develop a performance evaluation framework for pervasive computing systems.

Design/methodology/approach

Based on the authors' experience in the Gator Tech Smart House – an assistive environment for the elderly, they established a reference scenario that was used to guide the analysis of the large number of systems they studied. An extensive survey of the literature was conducted, and through a thorough analysis, the authors derived and arrived at a broad taxonomy that could form a basic framework for evaluating existing and future pervasive computing systems.

Findings

A taxonomy of pervasive systems is instrumental to their successful evaluation and assessment. The process of creating such taxonomy is cumbersome, and as pervasive systems evolve with new technological advances, such taxonomy is bound to change by way of refinement or extension. This paper found that a taxonomy for something so broad as pervasive systems is very complex. It overcomes the complexity by focusing the classifications on key aspects of pervasive systems, decided purely empirically and based on the authors own experience in a real‐life, large‐scale pervasive system project.

Originality/value

There are currently no methods or frameworks for comparing, classifying, or evaluating pervasive systems. The paper establishes a taxonomy – a first step toward a larger evaluation methodology. It also provides a wealth of information, derived from a survey of a broad collection of pervasive systems.

Details

International Journal of Pervasive Computing and Communications, vol. 6 no. 4
Type: Research Article
ISSN: 1742-7371

Keywords

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