The Research and Application of Key Technology on Wireless Multi-Hop Mesh Network

2013 ◽  
Vol 791-793 ◽  
pp. 1660-1663
Author(s):  
Ya Fang Lou ◽  
Zhi Jun Yuan
Keyword(s):  
Network Architecture ◽  
Wireless Mesh Network ◽  
Ad Hoc ◽  
Mesh Network ◽  
Network Technology ◽  
Typical Application ◽  
Key Technology ◽  
Wireless Mesh ◽  
The World ◽  
Mobile Ad Hoc

Wireless multi-hop mesh network (Wireless Mesh Network, WMN), is a new network technology developed from mobile Ad hoc, widely used in the world. The paper carried out in-depth research and outlook to the key technologies, network architecture, performance and characteristics and typical application scenarios of Wireless Mesh Network.

A High-Performance Wireless Mesh Network Routing Protocol

2014 ◽  
Vol 513-517 ◽  
pp. 1705-1708
Author(s):  
Zuo Xue Liu ◽  
Jian Mei Dai ◽  
Yi Jun Sheng ◽  
Zi Fan Wang
Keyword(s):  
Routing Protocol ◽  
High Performance ◽  
Wireless Mesh Network ◽  
Ad Hoc ◽  
Network Routing ◽  
Mesh Network ◽  
Rapid Convergence ◽  
Wireless Mesh ◽  
Mobile Ad Hoc ◽  
Mesh Node

BATAMAN (Better Approach to Mobile Ad-hoc Networking) is a new wireless Mesh network protocol. The algorithm of BATMAN protocol was analyzed, the BATMAN protocol was designed based the embedded Linux and realized on the self-developed wireless Mesh node mounting multiple Wi-Fi modules. The pragmatic performance was test in the multi-hop Mesh prototype network. The result shows that: the characteristics of throughput and latency of BATMAN protocol which is lightweight, rapid convergence and efficient can meet the real-time and broadband transmission requirement of wireless Mesh network.

Key Technology Research on Wireless Mesh Network MAC Protocol

2014 ◽  
Vol 696 ◽  
pp. 215-221
Author(s):  
Wen Qi Fan ◽  
Sheng Chun Huang ◽  
Ji Bo Wei
Keyword(s):  
Network Architecture ◽  
Wireless Mesh Network ◽  
Mesh Networks ◽  
Mac Protocol ◽  
Mesh Network ◽  
Medium Access ◽  
Broadband Wireless ◽  
Key Technology ◽  
High Data ◽  
Wireless Mesh

Wireless Mesh Networks (WMN) is distributed broadband wireless network architecture with characteristic of high throughput and high data rate. The quantity of research being conducted in this area has dramatically increased recently. Medium Access Control (MAC) is the key technology to exploit the multi-hop advantage of WMN. This paper introduces two major research topic of MAC design in WMN, the topology control and link scheduling. A survey of recent research on these topics is given in detail.

scholarly journals An Indoor Positioning System Using Multiple Methods and Tools

2018 ◽  
Vol 4 (1) ◽  
pp. 11-22
Author(s):  
Michael Adeyeye Oshin ◽  
Nobaene Sehloho
Keyword(s):  
Wireless Mesh Network ◽  
Ad Hoc ◽  
Indoor Positioning ◽  
Mesh Network ◽  
Positioning System ◽  
Tracking Systems ◽  
Positioning Systems ◽  
Wireless Mesh ◽  
Positioning Method ◽  
Indoor Positioning System

With many different studies showing a growing demand for the development of indoor positioning systems, numerous positioning and tracking methods and tools are available for which can be used for mobile devices. Therefore, an interest is more on development of indoor positioning and tracking systems that are accurate and effective. Presented and proposed in this work, is an indoor positioning system. As opposed to an Ad-hoc Positioning System (APS), it uses a Wireless Mesh Network (WMN). The system makes use of an already existing Wi-Fi infrastructure technology. Moreover, the approach tests the positioning of a node with its neighbours in a mesh network using multi-hopping functionality. The positioning measurements used were the ICMP echos, RSSI and RTS/CTS requests and responses. The positioning method used was the trilateral technique, in combination with the idea of the fingerprinting method. Through research and experimentation, this study developed a system which shows potential as a positioning system with an error of about 2 m to 3 m. The hybridisation of the method proves an enhancement in the system though improvements are still required.

Deployment of a Wireless Mesh Network for Traffic Control

2012 ◽  
pp. 290-310
Author(s):  
Kun-chan Lan ◽  
Zhe Wang ◽  
Mahbub Hassan ◽  
Tim Moors ◽  
Rodney Berriman ◽  
...  
Keyword(s):  
Traffic Control ◽  
Network Architecture ◽  
Wireless Mesh Network ◽  
Critical Infrastructure ◽  
Mesh Networks ◽  
New Technology ◽  
Mesh Network ◽  
Traffic Light ◽  
Wireless Mesh ◽  
Communication Needs

Wireless mesh networks (WMN) have attracted considerable interest in recent years as a convenient, new technology. However, the suitability of WMN for mission-critical infrastructure applications remains by and large unknown, as protocols typically employed in WMN are, for the most part, not designed for real-time communications. In this chapter, the authors describe a wireless mesh network architecture to solve the communication needs of the traffic control system in Sydney. This system, known as SCATS and used in over 100 cities around the world — from individual traffic light controllers to regional computers and the central TMC —places stringent requirements on the reliability and latency of the data exchanges. The authors discuss experience in the deployment of an initial testbed consisting of 7 mesh nodes placed at intersections with traffic lights, and share the results and insights learned from measurements and initial trials in the process.

Using Wireless Mesh Network for Traffic Control

2010 ◽  
pp. 331-347 ◽  
Author(s):  
Kun-Chan Lan
Keyword(s):  
Traffic Control ◽  
Network Architecture ◽  
Wireless Mesh Network ◽  
Mesh Networks ◽  
Great Majority ◽  
Mesh Network ◽  
Traffic Light ◽  
Available Bandwidth ◽  
Wireless Mesh ◽  
Communication Needs

Wireless mesh networks (WMN) have attracted considerable interest in recent years as a convenient, flexible and low-cost alternative to wired communication infrastructures in many contexts. However, the great majority of research on metropolitan-scale WMN has been centered around maximization of available bandwidth, suitable for non-real-time applications such as Internet access for the general public. On the other hand, the suitability of WMN for missioncritical infrastructure applications remains by and large unknown, as protocols typically employed in WMN are, for the most part, not designed for realtime communications. In this chapter, we describe a real-world testbed, which sets a goal of designing a wireless mesh network architecture to solve the communication needs of the traffic control system in Sydney, Australia. This system, known as SCATS (Sydney Coordinated Adaptive Traffic System) and used in over 100 cities around the world, connects a hierarchy of several thousand devices -- from individual traffic light controllers to regional computers and the central Traffic Management Centre (TMC) - and places stringent requirements on the reliability and latency of the data exchanges. We discuss some issues in the deployment of this testbed consisting of 7 mesh nodes placed at intersections with traffic lights, and show some results from the testbed measurements.

scholarly journals Performance Analysis on Hybrid Wireless Mesh Network Topology using Interference Aware Bandwidth Reservation

2019 ◽  
Vol 8 (2) ◽  
pp. 2666-2670
Keyword(s):  
Network Architecture ◽  
Wireless Mesh Network ◽  
Average Energy ◽  
Mesh Network ◽  
Network Simulator ◽  
Performance Parameters ◽  
Packet Size ◽  
Bandwidth Reservation ◽  
Wireless Mesh ◽  
Simulation Results

Ubiquitous of modern era which utilises Hybrid Wireless Mesh Network (HWMN) topology which gave birth to ample of modern application which demands reliability, fault tolerance and scalability. HWSN topology utilises minimum of two or multiple standard network architectural topologies, in a fashion that the resultant network architecture doesn’t depict any particular topologies like bus, star or ring but as a combination of any of those standard topologies. Prime motive of the proposed Optimised Channel Assignment Algorithm (OCSA) is which focuses on priority oriented interference minimization for all the trees which are existed, and constraint in terms of delay for evolving tree addition. Interference Aware Bandwidth Reservation (IABR) provides controllability over data flow admission for end-to-end optimal bandwidth accommodation in Multi-Radio Multi-Channel (MRMC) wireless mesh network. Proposed Priority Based Interference Aware Bandwidth Reservation (PBIABR) utilises disseminated and polynomialtime heuristic oriented assignment in channel to minimize interference in WMN with the awareness of channel priority as a primary consideration. Interference and Priority of the channel are made indirectly proportional to each other. For the channel of high priority the path which has low interference is opted. In PBIABR the whole path delay constraint of tree is sub organised into multiple node, based on delay to identify the best node which embodies minimal interference. Dominant Performance Parameters (DPP) like Throughput, Packet Size, Propagation Interval and Average Energy under HWSN Scenario. All the DPP parameters are analysed for multiple flow parameters for Interference Aware Bandwidth Reservation (IABR) and Proposed Priority Based Interference Aware Bandwidth Reservation (PBIABR) conditions. Simulation results have been captured using Network Simulator 2 tools for HWSN creation and crafted to same readings as a graph for deep analysis. The proposed simulation results for hybrid scenario highlights a considerable performance hike for the performance parameters like Throughput (bps) vs Packet size (bytes), Average Energy (joule) vs Interval (sec) and Residual Energy (joule) vs Interval (sec) under PBIABR conditions compared with IABR simulation outcome. The results have been analysed for comparative study of each parameter deeply. Inference from the comparative analysis highlights the performance parameters of PBIABR is efficient than IABR.

Optimization of WMN Performance for Different Propagation Environment

2018 ◽  
Vol 8 (4) ◽  
pp. 76
Author(s):  
Reshi Isfaq Qadir ◽  
Anuradha Saini
Keyword(s):  
Cost Function ◽  
Wireless Mesh Network ◽  
Ad Hoc ◽  
Mesh Networks ◽  
Link Quality ◽  
Mesh Network ◽  
Flexible System ◽  
Wireless Mesh ◽  
Hoc Networks ◽  
Point To Point

Wireless mesh networks are multihop systems in which contrivances avail each other in transmitting packets through the network, especially in arduous conditions. We can drop these ad hoc networks into place with minimal preparation, and they provide a reliable, flexible system that can be elongated to thousands of contrivances. The wireless mesh network topology developed is a point-to-point-to-point, or peer-to-peer, system called an ad hoc, multi-hop network. A node can send and receive messages, and in a mesh network, a node withal functions as a router and can relay messages to its neighbours. A mesh network offers multiple redundant communications paths throughout the network. If one link fails for any reason, the network automatically routes messages through alternate paths. In a mesh network, we can abbreviate the distance between nodes, which dramatically increases the link quality. If we reduce the distance by a factor of two, the resulting signal is at least four times more puissant at the receiver. This makes links more reliable without incrementing transmitter power in individual nodes. In a mesh network, we can elongate the reach, integrate redundancy, and amend the general reliability of the network simply by integrating more nodes. One of the most astronomically immense issues in routing is to providing copacetic performance while scaling the wireless mesh network. It is fascinating, however, to investigate what transpires when routing nodes are expanded in different propagation environment and how that affects routing metrics. In this thesis, we examine the utilization of different proactive, reactive and hybrid protocols in such a way so that we may be able to build a cost function which avails in culling the finest grouping of routing protocols for a particular urban wireless mesh network. The key parameters are network throughput and average end to culminate delay. The performance of Bellman ford, DYMO, STAR and ZRP protocols have been examined with different node densities.  A non-linear cost function equation has been proposed corresponding to each routing parameter taken. Bitrate is taken as constant (CBR).

Design and Analysis of a Novel Hybrid Wireless Mesh Network Routing Protocol

2014 ◽  
Vol 5 (3) ◽  
pp. 20-39
Author(s):  
Muddesar Iqbal ◽  
Muhammad Shafiq ◽  
Jin-Ghoo Choi ◽  
Hasina Attaullah ◽  
Khawar Akram ◽  
...  
Keyword(s):  
Routing Protocol ◽  
Routing Protocols ◽  
Wireless Mesh Network ◽  
Ad Hoc ◽  
Mesh Network ◽  
Mesh Router ◽  
Hybrid Routing ◽  
Wireless Mesh ◽  
Performance Metric ◽  
Distance Vector

Wireless mesh network (WMN) operates both in infrastructure and ad-hoc mode. It provides extended network coverage based on heterogeneous wireless technologies through multi-hop communications. In WMNs, the routing mechanisms and network organization need to be improved so that optimal path discovery or different protocols adaptability can be achieved. Hybrid routing is a demanding issue to be discussed these days as need of higher mobility management in the diverse situations and environments. It's required to improve the older schemes for higher data rate and minimum energy consumptions. The proposed work presents a design of a novel routing algorithm for optimal route discovery, congestion reduction, dynamic route selection and scalability in hybrid mesh networks. The authors have focused on Hybrid Routing Protocols to originate a novel routing scheme based on AODV (Ad hoc On-Demand Distance Vector routing protocol) in Ad-Hoc level with clustering scheme and DSDV (Destination Sequence Distance Vector) as proactive routing protocol in Backbone Mesh Router Level to form a new hybrid routing protocol. In this work a Novel Hybrid Distance Vector (NHDV) routing protocol algorithm has been introduced, which is the combination of DSDV (Destination Sequence Distance Vector) and AODV routing protocols. A clustering scheme with the combination of two efficient clustering schemes for Ad-hoc mesh client levels is discussed in detail and a performance metric for DSDV is also discussed which ETX (Expected Transmission Count) is for measuring packet loss ratio at each link for higher throughput. A new performance metric introduced in AODV as Mesh Router Count is used to improve the performance of communication to the Mesh Routers. The proposed work is the design of new algorithm that presents an optimal solution in bringing out a revolutionary change to Hybrid Routing.

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