TAILIEUCHUNG - the_handbook_of_ad_hoc_wireless_networks_8

Tham khảo tài liệu 'the_handbook_of_ad_hoc_wireless_networks_8', công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Simpo PDF Merge and Split Unregistered Version - http 21 GPS-Based Reliable Routing Algorithms for Ad Hoc Networks Young-Joo Suh Pohang University of Science and Technology Won-Ik Kim Electronics Telecommunications Research Institute Dong-Hee Kwon Pohang University of Science and Technology Abstract Introduction Ad Hoc Routing Protocols Dynamic Source Routing DSR Protocol Ad Hoc On-Demand Distance Vector AODV Routing Protocol Global Positioning System Reliable Route Selection Algorithms Stable Zone and Caution Zone AODV-RRS Protocol Description Effect of Stable Zone Radius Variations of AODV-RRS Extensions to Other Ad Hoc Routing Protocols Performance Evaluation Conclusions References Abstract The routing protocols designed for wired networks can hardly be used for mobile ad hoc networks due to unpredictable topology changes and thus several routing protocols for mobile ad hoc networks have been proposed. The goal of this chapter is to select the most reliable route that is impervious to failures due to topological changes caused by host mobility. To select a reliable route we introduce the concept of stable zone and caution zone and then apply it to the route discovery procedure of the existing ad hoc routing protocols. The concept of the stable zone and caution zone which are located in a mobile node s transmission range is based on a mobile node s location and mobility information received by the Global Positioning System GPS . We evaluated the proposed algorithms by simulation in various conditions and we obtained an improved performance in route maintenance time the number of route disconnections and packet delivery ratio. Introduction Mobile multi-hop wireless networks called ad hoc networks are networks with no fixed infrastructure such as underground cabling or base stations where mobile nodes are connected dynamically in an arbitrary manner. Thus nodes in such networks function as routers which discover .

• Quản trị mạng
• wireless net work
• giáo trình wireless net work
• sỏ tay wireless net work
• wireless networks
• giáo trình wireless networks