6LoWPAN Technology Research Articles

Research on Improvement and Optimization Design of Mobile Switching in RPL Routing Protocol

In response to the shortcomings of the current RPL routing protocol, fully utilizing the idea of opportunistic routing, this study proposes an improved RPL routing protocol node mobility switching method to enhance the mobility support of wireless sensor IPv6 networks. Analyze existing RPL routing protocol solutions and identify their shortcomings; Analyze the challenges encountered in designing and improving routing protocols, and based on the specific application of RPL in 6LoWPAN technology, propose an overall design concept for the mobile switching method of an improved RPL routing protocol; Then, specific design will be carried out for the improved routing protocol mobile switching method, including mobile node detection, discovery and selection of the optimal parent node, link switching, etc; Finally, simulation implementation is carried out to verify its low energy consumption and low latency. Its research content involves disciplines such as the Internet of Things, computer simulation technology, and computer network technology, and has high theoretical and practical value.

Security optimization method of high-power charging pile inter-group communication network under trusted taboo particle swarm optimization

In order to ensure the normal operation of the communication network in the event of a small number of charging pile failures, it is necessary to establish a stable communication network between the charging pile groups. In this case, it is necessary to improve the stability and viability of the communication network between the pile groups. Based on this, this paper proposes a security optimization method for high-power inter pile communication networks under trusted tabu particle swarm optimization. Using 6LoWPAN technology to optimize the wireless communication network architecture of charging piles to reduce the probability of communication network paralysis; design a neighborhood end-to-end communication strategy, and conduct research on lightweight key management of charging piles by building a three-tier architecture for the communication environment of charging piles. The trusted taboo particle swarm optimization algorithm optimizes the security of the communication network between high-power charging piles to ensure the security of the communication network. The experimental results show that after the optimization of the proposed method, the stability and invulnerability of the communication network between the charging pile groups have been effectively improved, and the method has a high convergence speed.

Research and application of smart streetlamp based on fuzzy control method

Abstract To meet the demand of the construction of smart city and make automatic adaption of streetlamp possible, a streetlamp control method based on fuzzy control theory is proposed. Firstly, the fuzzy control rules are designed to make the brightness of lamp node easy to adjust with the natural light dynamically. Secondly, a smart streetlamp system is designed by combining the wireless sensors network technology based on 6LoWPAN communication and visual program technology based on visual basic. Finally, the software and hardware test are conducted which achieves streetlamp adjust dynamically, remote control and data transmitted. Results shows: the lamps which are controlled by the fuzzy controller could adjust its brightness according to the environment smartly. The mentioned method can realize intelligent regulation and energy saving effect.

Heterogeneous communication system for technical control and monitoring of energy, industrial, housing and utilities, and agro-industrial facilities

Problem statement. Automated systems for monitoring and accounting of energy resources are increasingly used in large companies and small-scale production. Specialists often face the problem of installing sensors and receiving data in rooms with thick reinforced concrete and brick walls, where it is impossible to establish reliable radio communication, and the installation of additional cables is expensive. In such conditions, heterogeneous communication systems, in which different technologies can be used for communication, prove themselves well.Objective. Determine the optimal technology for heterogeneous communication systems for installing an automated system for monitoring and accounting of energy resources in certain conditions and develop technical proposals.Results. A simulation of the physical level of the communication system was performed using a PLC-G3 protocol. The energy characteristics were modeled and evaluated using 6LoWPAN technology. Technical proposals for creating technical means of the heterogeneous communication system are developed, the architecture of technical means and the structure of heterogeneous communication system are proposed.Practical significance. An automated system for monitoring and accounting of energy resources based on a heterogeneous sensor communication system provides regular collection of accurate information about energy resources at all stages of their movement – from input at the facility to each of the end points of consumption, provides access to the collected data for analyzing the state of the system as a whole, and allows operational control of the actuators of metering and control devices.

Research on Fishery Water Quality Monitoring System Based on 6LoWPAN

A fishery water quality monitoring system, based on 6LoWPAN, is proposed which can automatically implement various kinds of supervising tasks according to the changing environment. This system is applied to water quality monitoring of fisheries, realizing remote automatic online monitoring of water quality parameters such as temperature, salt content, pH, and dissolved oxygen, which have a significant impact on the aquatic product growth environment. The monitoring centre software performs the received data analysis, processing, storage, graphic display and alarm, providing the best growth environment for aquatic products. Compared with the existing fishery water quality monitoring methods, the system uses the IPv6 over IEEE 802.15.4 standard to construct a wireless sensor network. 6LoWPAN technology is easier to integrate into larger networks and easier to integrate with Internet-based services. This system can effectively improve the level of water quality management, reduce the risk of aquaculture, and achieve sustainable development of the aquaculture industry.

EKF-MRPL: Advanced mobility support routing protocol for internet of mobile things: Movement prediction approach

Mobility and resources optimized management are still open challenging issues for the success and proliferation of the Internet of mobile things based on the 6LowPAN technology. An efficient mobility support protocol provides a continuous seamless connectivity for mobile nodes with constrained resources essentially in terms of energy and link capacity. The existing routing protocol RPL has a very low reactivity to mobility making it inefficient and open to further research improvements. In this paper, we propose a new proactive mobility support protocol named EKF-MRPL based on the Extended Kalman Filter and the RPL standard. The crux of this protocol consists in providing mobile nodes with a seamless connectivity while reducing the number of switching between attachment points to reduce the signaling overhead as well as the power consumption. In the quest to forecast the new point of attachment of a mobile node, we propose to predict its non-linear trajectory based on the Extended Kalman Filter. We set up an analytical model and conducted extensive simulations using the Contiki platform. Simulation results clearly show that our proposed protocol EKF-MRPL outperforms several recent proposals, in particular the EC-MRPL in terms of signaling cost, energy consumption, packet delivery ratio and handover delay.

Design and Implementation of an Intelligent Street Lamp Network Node Based on 6LoWPAN Technology

To build an intelligent street lamp network, this paper analyzes the application of wireless sensor network, then, the network structure of intelligent street lamp network is realized based on 6LowPAN technology in the construction of smart city. Node controller and the border router of intelligent street lamp network are designed with respect to the hardware and software. Furthermore, after the network structure and communication system are accomplished, the IP of wireless intelligent street lamp network is also realized.

Wireless Sensor Network for Real-time Flood Monitoring Based on 6loWPAN Communication Standard

Riverine flood is a major disaster faced by most countries and has significant adverse effect on long term economic growth of affected regions and their environments. Several systems have previously employed different technologies to monitor riverine flood but are expensive with low accuracy and consumes high amount of energy. In this paper, we proposed an energy efficient and accurate flood monitoring system. The system leverages on Internet Protocol Version 6 over Low Power Wireless Personal Area Network (6loWPAN) technology to construct a Wireless Sensor Network (WSN) comprising of two XM1000 motes and a rule-base water level monitoring application. The motes were configured using NesC programming for flood monitoring with Basestation and water level sensing applications. The water level sensing mote samples and transmits real-time water level information to the Basestation mote which interfaces with a rule-based water level monitoring application. The application compares current water level with a predetermined threat level and alerts relevant agencies when flood is imminent via an email. The results obtained from the emulation of the developed system showed that, it achieved an accuracy of 95.3% in water level monitoring with a Mean Squared Error of 5.1. The power consumed in transmitting a packet of 2 bytes payload plus other overhead was 0.4µJ and 0.0396mJ with and without 6loWPAN configuration respectively.

A survey on mobility management protocols in Wireless Sensor Networks based on 6LoWPAN technology

Mobility has the advantage of enlarging the WSN applications of the Internet of Things. However, proposing a mobility support protocol in Wireless Sensor Networks (WSNs) represents a significant challenge. In this paper, we proposed a survey on mobility management protocols in WSNs based on 6LoWPAN technology. This technology enables to connect IP sensor devices to other IP networks without any need for gateways. We highlighted the advantages and drawbacks with performances issues of each studied solution. Then, in order to select a typical classification of mobility management protocols in WSNs, we provided some classification criteria and approaches on which these protocols are based. Finally, we presented a comparative study of the existing protocols in terms of the required performances for this network type.

A NEMO-HWSN solution to support 6LoWPAN network mobility in hospital wireless sensor network

IPv6 Low-power Personal Area Networks (6LoWPANs) have recently found renewed interest because of the emergence of Internet of Things (IoT). Mobility support in 6LoWPANs for large-scale IP-based sensor technology in future IoT is still in its infancy. The hospital wireless network is one important 6LoWPAN application of the IoT, it keeps continuous monitoring of vital signs of moveing patients. Proper mobility management is needed to maintain connectivity between patient nodes and the hospital network. In this paper, first we survey IPv6 mobility protocols and propose a solution for a hospital architecture based on 6LoWPAN technology. Moreover, we discuss an important metric like signaling overload to optimize the power consumption and how it can be optimized through the mobility management. This metric is more effective on the mobile router as a coordinator in network mobility since a mobile router normally constitutes a bottleneck in such a system. Finally, we present our initial results on a reduction of the mobility signaling cost and the tunneling traffic on the mobile PAN.

Based on 6LoWPAN Technology Distributed Energy Efficiency Terminal Development

This paper presents a 6LoWPAN-based distributed energy efficiency of the terminal design, the distributed terminal node hardware and software design are discussed in detail and discussion. Packet reception rate of the nodes in a small experimental platform, the average delay time and the average consumption of energy and other performance parameters were analyzed. Experimental data show that the terminal node can well realize the IPv6 node interconnection of distributed energy efficiency and ensure its continuity.

Modeling and Performance Analysis of Route-Over and Mesh-Under Routing Schemes in 6LoWPAN under Error-Prone Channel Condition

6LoWPAN technology has attracted extensive attention recently. It is because 6LoWPAN is one of Internet of Things standard and it adapts to IPv6 protocol stack over low-rate wireless personal area network, such as IEEE 802.15.4. One view is that IP architecture is not suitable for low-rate wireless personal area network. It is a challenge to implement the IPv6 protocol stack into IEEE 802.15.4 devices due to that the size of IPv6 packet is much larger than the maximum packet size of IEEE 802.15.4 in data link layer. In order to solve this problem, 6LoWPAN provides header compression to reduce the transmission overhead for IP packets. In addition, two selected routing schemes, mesh-under and route-over routing schemes, are also proposed in 6LoWPAN to forward IP fragmentations under IEEE 802.15.4 radio link. The distinction is based on which layer of the 6LoWPAN protocol stack is in charge of routing decisions. In route-over routing scheme, the routing distinction is taken at the network layer and, in mesh-under, is taken by the adaptation layer. Thus, the goal of this research is to understand the performance of two routing schemes in 6LoWPAN under error-prone channel condition.