Structural health monitoring network system with wireless communications inside closed aerospace structures

Structural Health Monitoring (SHM) requires integrated "all in one" electronic devices capable of performing analysis of structural integrity and on-board damage detection in aircraft?s structures. PAMELA III (Phased Array Monitoring for Enhanced Life Assessment, version III) SHM embedded system is an example of this device type. This equipment is capable of generating excitation signals to be applied to an array of integrated piezoelectric Phased Array (PhA) transducers stuck to aircraft structure, acquiring the response signals, and carrying out the advanced signal processing to obtain SHM maps. PAMELA III is connected with a host computer in order to receive the configuration parameters and sending the obtained SHM maps, alarms and so on. This host can communicate with PAMELA III through an Ethernet interface. To avoid the use of wires where necessary, it is possible to add Wi-Fi capabilities to PAMELA III, connecting a Wi-Fi node working as a bridge, and to establish a wireless communication between PAMELA III and the host. However, in a real aircraft scenario, several PAMELA III devices must work together inside closed structures. In this situation, it is not possible for all PAMELA III devices to establish a wireless communication directly with the host, due to the signal attenuation caused by the different obstacles of the aircraft structure. To provide communication among all PAMELA III devices and the host, a wireless mesh network (WMN) system has been implemented inside a closed aluminum wingbox. In a WMN, as long as a node is connected to at least one other node, it will have full connectivity to the entire network because each mesh node forwards packets to other nodes in the network as required. Mesh protocols automatically determine the best route through the network and can dynamically reconfigure the network if a link drops out. The advantages and disadvantages on the use of a wireless mesh network system inside closed aerospace structures are discussed

A Study on Bandwidth-Aware Routing Protocol based on SIC

Wireless Sensor Networks has a greater advantage in today‘s communication application such as environmental, traffic, military, health monitoring. In such smart environments, people with smart devices (nodes) can freely self-organize and form self-configuring ad-hoc network to send and forward data packets to a destination over multiple hops via intermediate nodes. To achieve these applications it is necessary to have a reliable routing protocol. The main motivation of this paper is to review various routing schemes in ad-hoc network that have recently been proposed to enhance throughput when transmitting and receiving packets during active communication. The review also focuses on the design of SIC routing protocol aiming at achieving high overall throughput compared to that of the hop count routing. In addition, the performance evaluation metrics are also discussed

Performance of Routing Protocol in MANET with Combined Scalable Video Coding

Development of wireless network technology to support various types of information services continues to increase especially in video streaming services. Video transmission especially in Mobile Ad Hoc Network (MANET) environment used in this research, particularly in the Combined Scalable Video Coding (CSVC) scheme which is a development of H.264 / MPEG-4. The contribution of this research focuses on the analysis of the performance of AODV, DSDV and DSR routing protocols in the MANET environment for CSVC, which is a new scheme in the development of H.264 / MPEG-4  video schemes. Performance evaluation are measured using the NS-2 simulation that supports MANET environment. As test metrics in this study are the end-to- end delay and PSNR. The test result shows the end-to-end delay in AODV is 0.60 seconds; this is lower than results on DSDV and DSR. On PSNR, DSR simulation results show 16.2 dB. This result exceed those in AODV and DSDV. The results of this research evaluation are influenced by channels in wireless networks, the larger the wireless network channel the more streaming video frames can be accepted by the destination node.  

A Comparative Study on Routing schemes for Wireless Network

Ubiquitous smart devices with embedded sensors are paving the way for mobile ad hoc networks (ad-hoc network) that enable users to communicate directly, thereby playing a key role in Smart City and Internet of Things applications. In such smart environments, people with smart devices (nodes) can freely self-organize and form self-configuring ad-hoc network to send and forward data packets to a destination over multiple hops via intermediate nodes. Wireless Networks includes a larger advantage in today’s communication application like environmental, traffic, military, and health observation. To realize these applications it's necessary to possess a reliable routing protocol. The main motivation of this paper is to review various routing schemes in ad-hoc network that have recently been proposed to enhance throughput when transmitting and receiving packets during active communication. The review covers various state-of-the-art protocols for each category and highlights their operation concepts, design challenges and key features. In addition, the performance evaluation metrics are also discussed

Energy-Efficient Multi-SPEED Routing Protocol For Wireless Sensor Networks

Wireless Sensor Networks(WSN) consist of a large number of sensor nodes randomly deployed in an area of interest to collect information from the environment. Due to lack of resources, energy efficiency and Quality of Service(QoS) are challenging issues in WSNs. In This paper, a new localized routing protocol is proposed which considers different QoS requirements in WSN. For latency considerations, it takes into account multiple levels of delay requirements by implementing different speed layers. Reliability needs are met by dynamically adjusting the transmission power of the sender and based on the energy consumed at the transmitter and the residual energy of the receiver, the forwarding decision is made. Finally, the performance of the protocol is evaluated using computer simulation.DOI:http://dx.doi.org/10.11591/ijece.v3i2.229

Performance evaluation of MANET routing protocols based on QoS and energy parameters

Routing selection and supporting Quality of Service (QoS) are fundamental problems in Mobile Ad Hoc Network (MANET). Many different protocols have been proposed in the literature and some performance simulations are made to address this challenging task. This paper discusses the performance evaluation and comparison of two typical routing protocols; Ad Hoc On-Demand Distance Vector (AODV) and Destination-Sequenced Distance-Vector (DSDV) based on measuring the power consumption in network with varing of the QoS parameters. In this paper, we have studied and analyzed the impact of variations in QoS parameter combined with the choice of routing protocol, on network performance. The network performance is measured in terms of average throughput, packet delivery ratio (PDR), average jitter and energy consumption. The simulations are carried out in NS-3. The simulation results show that DSDV and AODV routing protocols are less energy efficient. The main aim of this paper is to highlight the directions for the future design of routing protocol which would be better than the existing ones in terms of energy utilization and delivery ratio

Kinerja Protokol Routing Pada Lingkungan Wireless Mesh Network Dengan Combined Scalable Video Coding

Teknologi wireless mesh network (WMN) yang beroperasi pada standar IEEE 802.11 merupakan teknologi jaringan nirkabel terdiri dari mesh router dan mesh client dipadukan dengan internet, teknologi seluler dan jaringan sensor. Seiring perkembangan teknologi dan meningkatnya kebutuhan manusia, transmisi video melalui jaringan nirkabel semakin penting dan dibutuhkan. Umumnya, pembahasan transmisi video melalui teknologi jaringan nirkabel masih secara umum, sehingga memberikan tantangan dalam penggunaan throughput, end to end delay, packet loss dan PSNR. Combined Scalable Video Coding (CSCV) merupakan skema baru perkembangan dari H.264/MPEG-4. Pada penelitian ini CSCV digunakan untuk pengiriman video dengan standar IEEE 802.11 pada lingkungan WMN dan diaplikasikan pada protokol AODV, DSDV dan DSR. Untuk mengetahui kinerja protokol routing mana yang lebih baik dalam transmisi video CSVC digunakan metrik pengujian end to end delay, throughput, packet loss dan PSNR. Untuk analisis dan pengukuran data digunakan simulator NS-2, dan hasil percobaan simulasi yang dilakukan menunjukkan AODV memiliki nilai end to end delay yang rendah yaitu 0,57 detik, DSR memiliki nilai yang baik didalam throughput yaitu 31 kbps dan PSNR yaitu 22,7 dB, sedangkan DSDV memiliki packet loss yang rendah yaitu 56,4%

A new clustering technique based on replication for MANET routing protocols

The cluster head nodes in most mobile ad hoc networks (MANET) clustering protocols take on an extraordinary role in managing routing information. The reliability, efficiency and scalability of the clustering in MANET will ultimately be dramatically impacted. In this work we establish a new approach to form the clusters in MANET called the square cluster-based routing protocol (SCBRP). That protocol is based on the theory of replication. The goal of the protocol is to achieve reliability, availability and scalability with in the MANET. The proposed protocol is evaluated by caring the performance analysis using the NS-3 simulator. The performance shows 50% improvementin data delivering ratio in large network size, also shows an improvement in network stability and availability which is reflected in energy consumption measurements and increase in the system lifetime to 20%

A FRAME RESIST JAMMING GUIDANCE FOR VIDEO TRAFFIC IN WIRELESS MULTIHOP NETWORKS

A large-different research was present on routing calculations for wireless random with meshes systems. Previous creates routing meant for video communications will spotlight on multiple description coding. The schemes of multipath routing are believed to be to obtain greater quality of video transfer. Inside our work we consider wireless network in which the application flows includes video traffic and introduce an analytical structure that captures impact of routing on finish-to-finish video features regarding distortion. The expansion will facilitate computation of routes that are best regarding achieving of least distortion. To think about growth of the whole process of video frame loss, analytical structure recognizes and, assesses impact of wireless network above video distortion. The recommended system will grant us to make a routing policy meant for minimizing distortion that's which we goal a procedure for routing video traffic. Our proposal is video quality of user-perceived is considerably enhanced by means of comprising application needs, especially video distortion that's possessed a flow. Our physiques of routing are enhanced for moving videos above wireless systems by means of minimum video distortion