Clients (e.g., browsers) and servers require public key certificates to establish secure connections. When a client accesses server, it needs check the signature, expiration time, revocation status of certificate determine whether server is reliable. The existing solutions for checking either have long update cycle CRL, CRLite) or violate clients' privacy OCSP, CCSP), these also problem trust concentration. In this paper, we present PROCESS, an online privacy-preserving on-chain service...

Interest flooding attack (IFA) can considerably harm named data networking (NDN). To prevent an IFA, in this paper, we propose isolation forest (iForest) based IFA detection mechanism and provide a countermeasure. In mechanism, the iForest is constructed on prefixes of interest packets, where abnormal are isolated closer to root node, normal farther from node. Furthermore, detect malicious according usage pending table (PIT); thus, forwarding packets with restricted, influences reduced....

Abstract Mobile satellites can be considered as the promising solution to global IP network. In order provide quality of service (QoS) in future networks, mobile satellite integrated with asynchronous transfer mode (ATM) switch datagrams space. For such a network, new and sophisticated routing handoff algorithms are essential. this paper, scheme called adaptive path (APRS) is proposed. It shown that APRS superior performance for networks compared conventional schemes. Copyright © 2003 John...

The reliability of wireless sensor networks is significant in certain applications, especially the reliable routing. Most existing routing protocols use multi-paths to improve reliability. However, waste a large amount energy obtain redundancy. This not an optimal option for nodes with limited energy. In this paper, novel clustering-based multi-hop algorithm ( CRMR ) proposed. adopts mechanism multiple backup cluster heads efficiently extend time stable period clusters and decrease...

In this paper, aiming at improving the utilization of network resources and providing with better QoS guarantees such as new call blocking probability (CBP) handoff (HBP), we present an adaptive channel management scheme (ACMS) for routing in WATM mobile satellite networks. scheme, according to both system mobility feature traffic situation inter/intra links (ISLs), part channels will be dynamically reserved particularly calls order reduce HBP while guaranteeing a certain CBP requirements....

Data gathering in a wireless sensor network works way that sink collects data from large number of nodes. Traditionally, the hop-by-hop transmission is used this many-to-one communication. In communication pattern, closer node to sink, sooner its energy exhausted. The nodes close need route packets for farther and thus unbalanced consumption results short lifetime. paper we discuss problem balancing WSN with grid topology propose randomized scheme. our scheme, direct tradeoff by so as...

Video delivery networks (VDNs) are one of the key enablers for alleviating contradiction between demands increasing online video and response time users accessing content. However, existed works mainly adopt either proactive or reactive scheme, which leads to problems backbone traffic overloaded delays increased. In these works, impact performance indicators, such as bandwidth, delay, personalized demand on cost not comprehensively taken into account. To overcome problems, we propose a...

With the development of in-orbit processing technology remote sensing satellites, intelligent units carried on satellites realize real-time acquisition and images, thus satisfying users' individual needs enhancing response speed tasks. However, a large amount observation data cannot be transmitted back to ground in time due limitation transmission capability visible window between stations process satellite-terrestrial transmission. To solve this problem, community division-based content...

Abstract To obtain a more accurate gravity field model, measurement satellites use the drag-free control system to minimize residual disturbance force of satellite and improve accuracy field. meet accuracy, these tasks propose requirements wide continuous throttling ability, low noise, rapid response for propulsion system, which acts as actuator system. This research takes cusped hall electric object constructs component-level model based on experimental data. The design simulation are...

Abstract Graph-based traffic flow prediction plays a crucial role in urban management and planning. In this paper, we propose novel Dynamic Graph Attention Transformer Network (DGTNet), which is designed to address the issue of inadequate integration temporal spatial dimensions traditional models. DGTNet maintains continuity while revealing complex dynamic relationships between key nodes system, capturing periodic changes rhythm city life. Specifically, study adopts adaptive signal...

Computational Fluid Dynamics (CFD) technology was used to analyse a big truck with newly-designed head. Three models were designed analyze: (1) Project 1: trunk without fairing, (2) 2: an old (3) 3: new fairing (the of 2 is particularly moved 500mm forehead). During the movement vehicle, more similar streamlined shape vehicle is, reduction wind resistance can achieve. The could be thereby reduced in case having because for structure. challenge here that exactly optimal location on not clear...

In order to improve the warehouse cargo flow and detect temperature humidity of storage, characteristics topology various wireless sensor networks were compared. The tree was used. routing algorithms methods summarized. A brief description networking process given. Then, goods data network collection storage environment designed. nodes workflow RFID system described. Finally, warehousing environmental collected tested. results showed that accurately identified pallet tag tag. At same time,...

This paper presents an asynchronous data sharing mechanism for real-time applications with multiple writers. The is constructed from a fully single writer implemented through timing-based approach, which, being lock-free and loop-free, addresses the problems of priority inversion unbounded blocking among tasks running under priority-based scheduling. By replicating modifying its buffer access control function, multi-writer such that desired safety property feasibility conditions on...