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Load balancing and energy conservation techniques are one of the significant constraints in the design of in software defined wireless sensor network (SD-WSN). Usually, clustering method helps the network in the minimum utilization of energy that results in enhancing network lifetime. Moreover, various nodes in the multi-hop network that are near to the base station drain their battery very quickly thus lead to creating hot spot problem in a network. To overcome such constraints, this paper proposes a multilayer clustering architecture for selection of forwarding node, rotation of cluster head, and inter and intra-cluster routing communication. The proposed scheme efficiently tackle the rotation of forwarder node by incorporating routing table (table list) at each node. Moreover, the rotation is performed by the consideration of two threshold levels of the residual energy of a node. Also, the exploitation of decision maker node, forwarder node, backup forwarder node, and non-forwarder node enhancing the routing strategy in a network. The performance of the proposed scheme is tested and evaluated by C programming language. The results show that the proposed scheme successful achieve better results than TLPER and EADUC in energy consumption per node, end-to-end communication, hop count in cluster formation.

PurposeDigital freight forwarder (DFF) start-ups and their associated business models have gained increasing attention within both academia and industry. However, there is a lack of empirical research investigating the differences between DFFs and traditional freight forwarders (TFF) and the impact of digital start-ups on incumbents' companies. In response, this study aims to examine the key business model characteristics that determine DFFs and TFFs and propose a framework illustrating the extent to which digital logistics start-ups influence incumbent logistics companies.Design/methodology/approachBased on the primary data gathered from eight interviews with experts from start-ups' and incumbents' logistics companies, as well as secondary data, the authors identify the main factors of DFFs start-ups that have an impact on TFFs and analyze the similarities and differences in regard to the business model components' value proposition, value creation, value delivery and value capture.FindingsThe results show that differences between DFFs and TFFs appear in all four business models' components: value proposition, value creation, value delivery and value capture. In particular, the authors identify three main factors that need to be considered when assessing the impact of DFFs on TFFs: (1) the company size, (2) the market cultivation strategy and (3) the transport mode.Originality/valueThis is one of the first studies to specifically examine the key business model differences between DFFs and TFFs and to propose a conceptual framework for understanding the impact of digital logistics start-ups on incumbent companies.

In the highly competitive transportation market, small freight forwarders can form an alliance to secure capacity in advance and then share the capacity to fulfill their shipping requests during the freight season. Because not all the requests can be accepted, the rejected requests can be outsourced to the spot market typically at low profit margins. The forwarders are self-interested and have private information on the revenues and outsourcing profit margins of their requests. The centralized capacity-allocation problem is NP -hard, and its optimal solution may erode the profits of some forwarders. We propose an ascending auction mechanism to achieve truthful and approximately optimal capacity sharing. At each iteration of the auction, the set of bundles of capacity for each request is updated. The mechanism then determines a provisional capacity allocation and updates dual prices. Each request is allocated with a convex combination of bundles because a continuous capacity resource is considered. Strategy-proofness is ensured because all the winning bundles for an accepted request have the same payment, and the payment is ascending during the iterations. The mechanism iteratively expands the set of bundles and approximates the revenue loss to search optimal allocations, using the dual solution derived from minimizing primal-dual slackness. Social welfare is significantly improved compared with the no-collaboration case. We prove that the mechanism is strategy-proof, individually rational, weakly budget balanced, and finitely convergent. Extensive computational experiments show that the mechanism has efficiency loss less than 3% and budget surplus less than 10% in most cases. To achieve high system efficiency and small budget surplus with a reasonable computational time, it is better to select an appropriately small bid increment, especially for large-scale problems.

The impact of a small forwarder with the wheeled chassis, tracked-wheel chassis, and tracked chassis traveling on the soil profile was studied. The three chassis types were assessed for the influence of the loading of forwarder cargo space and the degree of tire inflation on induced specific and actual pressures of tires on the soil surface. Penetrometric resistances of soil profile and rut depths in the forwarder driving track were measured. The effect of a layer of logging residues in the forwarder driving track on the size of induced actual pressures was determined. The practice of determining the impact of forest machines on the soil surface by means of a specific tire pressure does not have a full informative value. In the forwarder wheeled chassis, maximum values of actual pressures exceeded specific pressures established numerically by up to 203%. Average values of actual pressures could be reduced by 45% by reducing the pressure of tire inflation, by 70% with the use of tracks, or by 49% by traveling on the layer of logging residues. As compared with the wheeled chassis type, the tracked type of the forwarder chassis induced actual pressures to lower by 81% and the rut depth after ten forwarder passes was smaller by 50%.

PurposeVisibility is the need of the hour for each organization involved in the supply chain, and scholars have made few previous efforts to understand patterns driving visibility in transportation platforms. However, many companies have not been able to achieve sufficient levels of practical implementation across the supply chain. Therefore, this study focuses on exploring, why the real-time visibility transportation platforms fail to operationalize.Design/methodology/approachThis study utilizes action research as a methodology for pragmatism to understand supply chain professionals' viewpoint regarding the operationalization of real-time visibility. The research addresses a complex transportation network of a fast-moving consumer goods company. Wherein, both a greater need for visibility and improvements are also more challenging.FindingsTensions amongst complementors, the platform owner, and the Control Tower of a focal company explain the different impacts of freight forwarders and own fleet carriers on shipment compliance. Integrating subcontractors is a cost-intensive practice for complementors that increases asymmetry and reduces co-created value. The willingness of freight forwarders to exert control contributes to tension competition versus collaboration.Research limitations/implicationsThe model identifies the dynamics that explain how managers can navigate the tension over time by controlling contradictory loops driving shipment compliance. Findings can help managers develop plans, conduct pilots, and collaborate to unlock value from real-time visibility. The research findings can be informative for the European Union bodies and help work out a policy that reduces the asymmetry of benefits and contribute to the more sustainable development of digital industrial platforms.Originality/valueThe contribution lies in (1) providing a study of the factors affecting achieving real-time visibility, (2) distinguishing complementors (3) identifying tensions amongst complementors and platform owner as critical for successful platform deployment, (4) conceptualizing a pattern of behavior emerging amongst the platform partners and (5) outlining avenues for future research.

Background: Due to the absence of unified global regulations, defining the service and legal role of freight forwarders is challenging. This, as well as the lack of a standardized limit to the freight forwarder’s liability for loss or damage to the cargo, introduces misunderstandings into his relationship with the client. The purpose of this study is to analyze the most widely used limit for freight forwarder’s liability, set in Special Drawing Rights (SDR) units, and to adjust it, which will allow for maintaining the purchasing power of the compensation amount over different periods of time. Methods: In this study, two methods of adjusting the liability limit were proposed. In accordance with the first one, the limit was adjusted considering the impact of dollar inflation on the SDR unit. The second method involves changes in the limit of liability, taking into account changes in world prices for goods. Results: The result of this study showed that the second method is more functional, helping to preserve the purchasing power of the liability limit most effectively over time. Conclusions: This study revealed the fluctuating purchasing power of the forwarder’s liability limit over time and suggests utilizing a methodology tied to changes in global goods’ prices for adjustment.

In the modern digitalised era, the total number of businesses and organisations utilising crowdsourcing services has risen, leading to an increase of their website traffic. In this way, there is plenty of space for marketers and strategists to capitalise big data from both their own and the crowdsourcer’s websites. This can lead to a comprehension of factors affecting their brand name, sustainability (gross profit) and consequently visitor influence. The first of the three staged contexts, based on web data, includes the retrieval of web data analytics and metrics from five air forwarding and five crowdsourcing websites in 210 observation days. At stage two, we deployed a diagnostic-exploratory model, through Fuzzy Cognitive Mapping (FCM), and in the last stage, an Agent-Based Model is deployed for data prediction and simulation. We concluded that crowdsourcing referral traffic increases air forwarders’ top 3 keywords volume, and decreases social traffic and total keywords volume, which then boosts their global web rank and gross profit. The exact opposite results occur with crowdsourcing search traffic. To sum up, the contribution of this paper is to offer realistic and well-informed insights to marketers about SEO and SEM strategies for brand name and profit enhancement, based on harvesting crowdsourcing platform traffic.

Traditional timber harvests on steep slopes have been conducted through labor-intensive and sometimes environmentally impactful methods, such as manual felling with chainsaws and extraction using bladed skid trails, winching, or cable yarding. Ground-based mechanized harvesting and primary transportation methods such as cut-to-length harvesters and forwarders have emerged in some parts of the world as low-impact, safe, and efficient alternatives to the aforementioned systems. However, when mechanized operations are used on steep terrain, problems such as poor stability, loss of traction, and increased soil disturbance can occur. Tethered or winch-assisted logging practices are being tested and applied in several countries to adapt to challenges associated with operating equipment on steep slopes while minimizing environmental impact. To better understand the feasibility of these systems, we conducted a designed experiment to quantify changes in soil properties and predicted erosion resulting from varying numbers of passes and payload levels by a forwarder operating on slopes ranging from 27 to 38 degrees. The machine was equipped with two different track configurations, tethered by either a machine-mounted or self-contained winch, in eucalyptus plantations in Brazil. On low slopes, bulk density significantly increased, but it did not increase on steeper slopes; this demonstrates traction winches’ effectiveness at reducing concentrated ground pressures. Rut depths were minimal and decreased with increasing slope classes due to reduced track slippage. Predicted erosion rates were high, primarily due to the extremely steep, long slopes and lack of adequate cover in some portions of the trail, illustrating the importance of proper erosion management practices on steep slopes.