Underwater acoustic sensor networks (UASNs) are among the most critical tools for underwater environment sensing and information acquisition. Since complexity of renders battery replenishment replacement more difficult UASNs mainly powered by batteries built into nodes, optimization node energy consumption is particularly important extending network lifetime. Recently, solutions have focused on clustering multihop transmission. However, schemes implemented using distributed algorithms; in...

Underwater acoustic sensor networks (UASNs) are used extensively in activities such as underwater data collection and water pollution detection. An UASN consists of sensors that use batteries their power supply. Because the complex environments which UASNs employed, replacing these is difficult. Prolonging battery life by reducing energy consumption (improving efficiency) one means mitigating this problem. This paper proposes an energy-balanced unequal layering clustering (EULC) algorithm...

The underwater acoustic sensor network (UASN) is a specific deployment of Internet-of-Things (IoT) technology in the environment, since energy constraints limit lifetime UASNs, effectively balancing consumption nodes UASNs important to maximize amount information collected and prolong lifetime. Node clustering widely regarded as one most energy-efficient schemes for UASNs. However, existing focus on cooperation-based election cluster headers (CHs) centralized manner. Due limited capacity,...

In recent years, a typical representation of the next-generation Internet architecture, named data networking (NDN), and critical form underwater Things (IoT), acoustic sensor networks (UASNs), have attracted widespread attention in academia. Meanwhile, since battery energy node is limited difficult to replace or recharge environments, extending networks' lifetime has become key issue UASNs. this paper, we try deploy UASN on NDN architecture explore consumption NDN-based under shallow water...

Named data networking (NDN) is one representation and implementation of information-centric (ICN) considered to be among the most promising designs for next generation network architecture. The introduction NDN into vehicular ad-hoc networks (VANETs) utilization its content-centric characteristic improve transmission distribution in VANETs has become a research hotspot recent years. However, on mobility support NDN-based still faces many challenges. To solve issue path breaking due <italic...

Underwater acoustic sensor networks (UASNs) currently provide an important technical means of underwater communication, but there are difficulties in power updating or replenishment because the nodes work environment. Therefore, energy consumption optimization has become focus research on UASNs. Node clustering is widely considered to be able optimize network consumption. Although current clustering-based routing method prolongs life cycle a certain extent, some may fail due excessive caused...

NDN has been widely regarded as a promising representation and implementation of information- centric networking (ICN) serves potential candidate for the future Internet architecture. However, security is threatened by significant safety hazard known an IFA, which evolution DoS distributed attacks on IP-based networks. The IFA attackers can create numerous malicious interest packets into named data network to quickly exhaust bandwidth communication channels cache capacity routers, thereby...

Considering extremely limited energy of sensor nodes, how to utilize the nodes effectively prolong survival time wireless network (WSN) is crucial. Aiming at monitoring application in particular regions, residual and distance constraint condition between cluster heads are taken into consideration. A new clustering algorithm (EDL, Energy Distance LEACH) proposed solve issues finite balance WSN. Comparison simulation tests EDL LEACH was conducted. Results showed that could make head distribute...

The main methods of crime governance are pre prevention and post crackdown. With the development intelligence information technology, public security work has also ushered in new opportunities challenges. This paper used intelligent algorithms combines characteristics with existing big data resources system to propose a multidimensional facial recognition model based on TF-IDF algorithm, it warning BP neural network form closed chain investigation. dual guarantee is great significance...

Interest flooding attacks (IFAs) are widely regarded as being among the most harmful security risks in named data networking (NDN). Through an IFA, attacker injects numerous packets into a network to drain resources such bandwidth, caching capacity, and computational which can seriously affect normal content requests of legitimate consumers degrade quality service (QoS). To design high-efficiency IFA mitigation scheme, it is critical detect accurately rapidly. Therefore, there high interest...

Vehicular named data networking (V-NDN) is a network architecture that combines (NDN) and vehicular ad hoc networks (VANETs). Due to the high-speed mobility of on-board unit (OBU) in V-NDNs, topological changes may cause problem reverse path breaking for packets, thus impacting communication quality service (QoS) among vehicles. To address this issue, packet backhaul prediction method (DBPM) based on cluster routing V-NDN proposed paper. The DBPM uses GPS convex programming location...

Named data networking (NDN) is a representation and implementation of an information centric network, which considered as one the next generation network architectures. To best authors’ knowledge, very few studies have multiple constrained quality‐of‐service (QoS) routing in NDN. In this study, particle swarm optimisation‐forwarding base (PSO‐FIB) algorithm that uses forwarding experiences particles to maintain probability each entry FIB proposed. Illustrating interaction PSO‐FIB with layer,...

In vehicular named data networks (VNDNs), the characteristics of high mobility and intermittent connectivity vehicles bring challenges to stable communication between vehicle nodes. addition, consumer in networking (NDN) obtains by broadcasting interest packets, if it is not controlled, redundant packets will be generated, which cause storms. response above problems, this paper proposes a delayed broadcasting-based forwarding method. The method designs content discovery process that can...

Real-time image processing is a difficult work for traffic video monitoring. This paper proposed method to detect and track vehicles on highway based airship therefore calculate parameters in real-time. A blocking road extraction was performed determine the ROI, automatically tilt of which contributes detection. lane marks registration applied help detection geometric size displacement vehicles. Vehicles were tracked by an amended mean-shift whose RGB color difference instead components....

To improve the space anti-radiation performance of optical satellite communication system, research influence on its system bit error ratio(BER) under radiation environment was developed. The radiation-induced BER model established, based which numerical calculations after damage either source or detector were calculation results have proved that both γ and proton radiations can degrade by several levels, some suitable shielding equipments are further needed.

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 This paper presents an enhanced whale optimization algorithm based on virtual force to optimize coverage and address the problem of uneven during deployment underwater sensor networks. method is guided by Lévy flight algorithms adopts a differential mutation strategy random walks. improves fitness initial population richness algorithm. The effectiveness this was verified through simulation.

Named data networking (NDN) is a typical implementation of information-centric (ICN), which has been widely investigated in recent years for its potential as the next-generation network architecture. Optical networks are important demand Internet bandwidth enormous and they can be used to attain extremely high bandwidth. In this article, we study optical named (ONDN), complete solution NDN deployment over based on wavelength-division multiplexing (WDM). To best our knowledge, first attempt...