Archive for January 2011
In Wireless Mesh Network conventional routing protocol can not be used because of difference in processing power, limited energy and less memory of nodes. So it was decided that it should have its own routing protocol. In this paper it was concluded that according to researchers that Dynamic Source Routing (DSR) is the protocol that provides most benefits. DSR routing protocol is improved by transmitting the packet based on distance threshold and congestion threshold. Results shows that each node forwarding becomes better i.e. network throughput has been greatly improved and broadcasting overload problem or congestion problems are reduced.
- Study fundamental networking concepts.
- Study routing and routing protocols for wired network.
- Study routing protocols for MANET.
- Learning JAVA.
- Learning OPNET.
- Analyzing the routing protocol for MANET and study their algorithm.
- Comparative analysis of proposed routing protocol of WMN.
- Developing routing algorithm for WMN and creating a program in JAVA.
- Learning Linux programming and Creating a decentralized network in LINUX.
- Performing simulation in OPNET.
- Comparing the developed protocol with proposed protocols.
Routing is the main research issue in the development of Wireless Mesh Networks (WMNs). Many of the routing approaches have been borrowed from Mobile Ad hoc Networks (MANETs) to achieve routing solutions in WMNs but are not ideal or optimal and do not utilize the characteristics of WMNs to their benefits. For instance, to develop an ad-hoc routing protocol, features need to be considered are mobility, limited power consumption, adaptability, flexibility, security, scalability etc. On the other hand, to design routing protocol for wireless mesh network, requires to consider fixed application, mobile application, scalability, better performance metrics, efficient routing within infrastructure, robustness etc. These limitations urge a need of a routing protocol specifically tailored for WMN.
This project provides us with a strong prospect to develop a java based application with a touch of Linux so that we can improve our programming skills as well as the networking knowledge.
The research and development methodology which is being followed all over the world, this project will help us get familiar with it.
Our Project is to design the routing protocol for wireless mesh network. This project encompasses an extensive study of network layer and the design protocols for it. It will also incorporate the application of Java and Linux programming in mesh network designing. Besides the presentation of comparative analysis of current WMN and MANET protocols, it is expected that a whole new routing algorithm will be devised for fast changing WMNs that will be efficient in terms of scalability, high throughput and reliability. Finally the designed routing protocol will be simulated in OPNET and it will be compared with the proposed routing protocols for WMN.
Wireless mesh networks (WMNs) have emerged as a key technology for next generation wireless networks showing rapid progress and inspiring numerous applications. WMNs seem to be signiﬁcantly attractive to network operators for providing new applications that cannot be easily supported by other wireless technologies. The persistent driving force in the development of WMNs comes from their envisioned advantages, including extended coverage, robustness, dynamic self-conﬁguration, easy maintenance, and lower operating costs.These characteristics allow WMNs to play an important role in the next generation of wireless network.
Wireless mesh network overcomes the drawbacks of traditional one hop wireless networks which are usually expensive and require licenses (e.g., 3G networks and licensed WiMAX) or have limited coverage (e.g., 802.11 WLANs). WMN are multihop wireless network, which require no infrastructure of its own and uses the existing infrastructure of these network .Thus WMN can be used to provide seamless connectivity on the go. Moreover, they can be used to provide broadband connectivity to the rural areas where service providers are not willing to deploy wired infrastructure which are more expensive and time-consuming to set up than a wireless one. One of the most attractive features of wireless mesh networks is self-organization. Various functions, such as medium access control and routing, are carried out in a fully distributed manner with minimal human intervention. They are not subject to any centralized network management processes of the kind practiced in wired networks. These attracted features of WMN have gained attention of research community and industries and a lot of research has been conducted in the last decade and is still being done regarding the issues of WMN implementation like routing and MAC layer design