Search Results

Now showing 1 - 3 of 3

Some of the metrics are blocked by your
consent settings
Integration of MANET with In-Band SDN Controller
(2021-01-01)
Thongthavorn, Thananop
;
Prabhavat, Sumet
Mobile Ad Hoc Networks (MANETs) are Infrastructureless mobile networks that can be formed with a group of wireless devices. To establish communication, MANETs require a routing protocol to discover an end-to-end route under uncertain network topology due to node mobility. The traditional reactive routing protocol discovers the shortest route using only the node’s local information and keeps utilizing the route until it collapses. This kind of method might not conform to the recent network condition. In this paper, we propose an SDN- based routing protocol for MANETs. By assigning a node in the network to act as an SDN controller, the route discovery action will be centralized. Since the SDN controller is not designed to support multi-hop wireless communication, we additionally design a mechanism to maintain connectivity between the controller and mobile nodes. The controller utilizes link-state information of every node to decide a route upon request. The simulation result shows that the proposed protocol overcomes the aforementioned routing problem. The generated route requests are decreased which indicating an increase in route stability, resulting in a better packet delivery ratio.
Some of the metrics are blocked by your
consent settings
Efficient Route Update and Maintenance for Reliable Routing in Large-Scale Sensor Networks
(2017-02-01)
Pradittasnee, Lapas
;
Camtepe, Seyit
;
Tian, Yu Chu
Reliable data transmissions are challenging in industrial wireless sensor networks as channel conditions change over time. Rapid changes in channel conditions require accurate estimation of the routing path performance and timely update of the routing information. However, this is not well fulfilled in existing routing approaches. Addressing this problem, this paper presents combined global and local update processes for efficient route update and maintenance, and incorporates them with a hierarchical proactive routing framework. While the global process updates the routing path with a relatively long period, the local process with a shorter period checks potential routing path problems. A theoretical modeling is developed to describe the processes. Through simulations, the presented approach is shown to reduce end-to-end delay up to 30 times for large networks, while improving packet reception ratio (PRR) in comparison with hierarchical and proactive routing protocols ROL/NDC, DSDV, and DSDV with IPv6 Routing Protocol for Low-Power and Lossy Networks' Trickle algorithm. Compared with reactive routing protocols AODV and Ad Hoc On-demand Multipath Distance Vector, it provides similar PRR while reducing end-to-end delay over 15 times.
Some of the metrics are blocked by your
consent settings
Routing scheme for multimedia services in mobile Ad hoc network
(2005-12-01)
Taing, Nguon
;
Thipchaksurat, Sakchai
;
Varakulsiripunth, Ruttikorn
;
Ishii, Hiroshi
All communications in a network made by mobile hosts through a shared radio link without cable or backbone, commonly called Mobile Ad hoc Network (MANET). Since the network topology may change constantly because of mobility of nodes and the available routes may fail many times, Quality-of-Service (QoS) of real-time multimedia application may have difficulty in satisfying their services. In this paper, we propose a Routing Scheme for Multimedia Services, which selects the shortest path by using power level Our proposed scheme provides not only the lower means number of hops path from source node to destination node, but also higher thoughput than the conventional scheme. © 2005 IEEE.

KMITL

Browse

Filters

Settings

Sort By

Results per page

Search Results