Priority Based Congestion Control Routing in Wireless Mesh Network (original) (raw)

Contemplation of various routing protocols for wireless mesh networks

International Journal of Latest Trends in Engineering and Technology, 2017

I. INTRODUCTION The wireless mesh network is the combination of adhoc networks and it contains mesh portals which increase its coverage area [1].Wireless mesh networks are more advantageous than other wireless networks; these networks consists of easy deployment, greater reliability, self-configuration, self-healing and scalability. Basically two types of nodes are present in Wireless Mesh Networks and these nodes are: Mesh routers and Mesh clients. Mesh routers are not mobile so they perform specific functions to support mesh networking. Mesh routers act as backbone for clients. Mesh routers have different wireless interfaces which can be implemented on either the same or different wireless access technologies. Mesh clients [2] have additional functions for mesh networking and can also work as routers. Mesh client has only one interface. Mesh clients have a higher variety of devices compared to mesh routers. Routing plays an important role to forward data packet from source to destination node. The Wireless Mesh routing protocols are categorized in three different protocols and these are proactive routing, reactive routing and hybrid routing protocols. In proactive routing protocols all the paths are created between source node and destination node, whether there is a need to transmit data or not. This type of routing protocols is also called table-driven methods. By Continuous evaluation of routes, routing information is updated by maintaining consistency. The main benefit of proactive routing protocols [3] is that nodes can quickly access route information and path is established. In reactive routing protocols [3] on demand establishment of paths is created. These reactive methods are also called ondemand methods. When the source node required transferring data to a destination node initialization of route discovery process takes place. The discovery process terminates either when a route has been found or not. Hybrid routing protocols are the combination of merits of proactive and reactive routing protocols by overpowering their demerits by discovering efficient routes, without having large number of control overheads. It establish diverse routing protocol in different part of the infrastructure of WMNs i.e. reactive protocols for the ad hoc network area while proactive protocols are employed in wireless backbone [5]. Routing plays an important factor to forward the data packet from source node to destination node. To provide efficient performance, routing metrics must satisfy basic requirements these are scalability, reliability, flexibility, throughput, load balancing, congestion control and efficiency. II. LITERATURE REVIEW Seongkwan Kim, (2009) proposed the technique which is based on an offline routing scheme [12] by comparing its end-toend link quality metrics (ETX and ETT) and throughput performance. Various modifications are also made in routing protocols (AODV, OLSR and HWMP) so that they operate better in wireless mesh environment. Author also provide a synthetic view of the performance dynamics of wireless mesh networks and the components that impact the performance, each of which cannot give the complete analysis for the network behavior by itself. K.P. Vijayakumar, (2012) proposed the technique which is based on the theoretical details of variety of routing protocols that are proactive routing, reactive routing and hybrid routing. These protocols are used in wireless mesh networks and are used to identify the performance of these routing protocols [13]. The performance is done with respect to load balancing, packet delivery ratio, congestion network overhead, throughput and mobility of nodes.

Wireless Mesh Network Routing: A Comparative Survey

2017

Nowadays, the wireless network technology, as a very cheap alternative Very cheap to create associative networks and unified are under development. Although such networks are economically very affordable and are also numerous operational efficiency, including dynamic capability and comfort give and offer to the end user. Among the networks-based infrastructure, a wireless mesh network (as a set of wireless router are taken at strategic locations, providing total connectivity to the network) also provides flexibility for multi-hop. Therefore, how can efficiently these packages through the wireless network arrive to the destination, is a very important problem. Unlike routing wired networks, wireless routing faces with challenges such as interference, among other transfers and channel variable characteristics. In a wireless network, the routing algorithms are divided in numerous categories ranging from algorithms Geographic routing, Geo-Casting, hierarchical, multi-path, based on the ...

Study of Routing Protocols in Wireless Mesh Networks

Today the growing interest in Internet, Wireless Mesh Network (WMN) plays important roles towards the next-generation wireless networking called 4G. It is a key technology to support wireless multi-hop networks. Wireless Mesh Network is a combination of mobile ad hoc and conventional networks. In contrast to conventional networks, Wireless Mesh Network has no fixed configuration. Wireless Mesh Networks is configured using mesh routers and mesh clients.WMN significantly improved of performance of Wireless Ad hoc and traditional networks. Due to dynamic routing nature of WMNs, the optimization of routing protocol is most critical task. In this study we discuss various existing routing protocols and issues related to routing in WMN.

Packet routing in wireless mesh networks

10th Symposium on Neural Network Applications in Electrical Engineering, 2010

Wireless mesh networks (WMN) represent a type of mobile ad-hoc networks. These networks are very important in providing the Internet access to fixed and mobile terminal equipment. The main problem in WMNs (regarding to mesh routers and mesh clients) is a routing protocol, especially because it has to enable the access to network for both mesh and conventional clients. Access to Internet for wireless mesh networks is done via special mesh routers, the gateways. Several gateways may exist in a network. The main role of a routing protocol is to find way to establish connection between an end user and one of the gateways, as fast as possible, considering links status. This path should be optimized from the traffic distribution and path distance point. This paper presents one type of packet routing in wireless mesh networks based on Hopfield neural network. Artificial intelligence is used for path optimization. Distribution of local routing information and routing table updates is realized by mobile agents. In this way, network should have a simple way of routing information delivery and thus for effective user traffic support.

A STUDY OF DIFFERENT LAYERS AND ROUTING PROTOCOLS IN WIRELESS MESH NETWORKS

In this paper we study the different layers and routing protocols in wireless mesh network.Wireless mesh networks (WMNs) consist of mesh routers and mesh clients, where mesh routers have minimal mobility and form the backbone of WMNs. They provide network access for both mesh and conventional clients. The integration of WMNs with other networks such as the Internet, cellular, IEEE 802.11, IEEE 802.15, IEEE 802.16, sensor networks, etc., can be accomplished through the gateway and bridging functions in the mesh routers. Mesh clients can be either stationary or mobile, and can form a client mesh network among themselves and with mesh routers. WMNs are anticipated to resolve the limitations and to significantly improve the performance of ad hoc networks, wireless local area networks (WLANs), wireless personal area networks (WPANs), and wireless metropolitan area networks (WMANs). They are undergoing rapid progress and inspiring numerous deployments. WMNs will deliver wireless services for a large variety of applications in personal, local, campus, and metropolitan areas. In this paper we present the different layers and protocols of wireless mesh networks i.e. physical layer, MAC layer, network layer, transport layer and application layer. In this paper we also discuss about the protocols for network management.

A STUDY ON QOS AWARE ROUTING IN WIRELESS MESH NETWORK

Wireless Mesh Networks (WMN) mainly consists of mesh clients and mesh routers. It is mainly effective as an economically successful and a promising technology for providing wireless broadband services. Mesh routers basically form the backbone of the network (WMN) and hence has the minimum mobility. They interconnect the mesh clients and the wireline backbone network. In order to approach the wireline level or same or near QoS, the Wireless Mesh Networks must be QoS aware. In this paper we have worked on the effect of variable transmission power to achieve the desired SNR and to maximize the number of active links at the same time for each links in the network and analyze different approaches to maintain the QoS routing of a wireless mesh network.

Source-Based Routing in Wireless Mesh Networks

IEEE Systems Journal, 2016

Wireless mesh networks (WMNs) are currently used to provide broadband access to the Internet anytime and anywhere. Generally, WMNs consist of mesh routers equipped with one or more interfaces allowing connectivity to the Internet through gateways. To route traffic from sources to destinations, many routing protocols have been proposed in the literature. However, most of them take into account at most one metric (e.g., interferences, packet losses, and load at gateways). Moreover, almost all of these schemes consider only one type of interferences: interflow or intraflow. In this paper, we propose a new source routing and gateway selection scheme, which is called source-based routing (SBR), that improves the performance of WMNs. SBR uses a novel routing metric, which is a combination of packet losses, intraflow and interflow interferences, and load at gateways, to select best paths to reach selected gateways. Simulation results show that the proposed SBR improves the network performance and outperforms existing routing schemes, which are based on expected transmission count (ETX), nearest gateway (NG; i.e., shortest path to gateway), load at gateways (LG), or interference ratio (IR); more specifically, SBR yields 33%, 26%, 13%, and 10% more throughput compared with LG, ETX, NG, and IR, respectively.

Techniques of Wireless Mesh Networks- a Review

International Journal of Advanced Research in Computer Science, 2017

The ad hoc network is the type of network in which mobile nodes can configure and start communicating with each other. The wireless mesh network is the type of ad hoc network in which mesh portals and mesh access points are deployed to increase scalability of ad hoc network. The wireless mesh network has decentralized architecture due to which routing, security and Quality of Service (QoS) are the three major issues in the network. In this paper, various techniques have been reviewed which had been proposed in the recent times to resolve issues of routing and security for wireless mesh networks.

Routing protocols for Wireless Mesh Networks: A comparative study

International journal of multidisciplinary and current research, 2014

A wireless mesh network (WMN) is a particular type of mobile ad hoc network (MANET), which aims to provide high bandwidth access for a large number of users. Shared nature of the wireless medium, static nodes and diversity of multiple paths between source and destination nodes makes designing of routing protocols makes a challenging task for wireless mesh networks when throughput, delay and protocols overhead taken into consideration. In this paper we present common metrics considered in routing protocol design and complete comparative analysis between some of the most deployed routing protocols in the wireless mesh networks along with simulation results for throughput, overhead and overall delay.