routing in wireless sensor networks (wsns) is a very challenging task due to the large number of nodes, their mobility and lack of proper infrastructure. since the sensors are battery powered devices, energy efficiency is considered as one of the main factors in designing routing protocols in wsns. most of energy-aware routing protocols are mere energy savers that attempt to decrease the energy...

Due to the limited lifetime of the nodes in ad hoc network, energy efficiency needs to be an important design consideration in any routing algorithm for ad hoc and sensor networks. In most of the existing position-based routing algorithms the nodes use the maximum transmission power to discover neighbors, which may cause excessive power consumption. This paper presents several localized power-a...

In geographic routing, nodes to theirinstantaneous neighbors call for to maintain up-to-date positions for making successfulforwarding decisions. The geographic location coordinates of the nodes by the periodic broadcasting of beacon packetsis atrendy method used by the majority geographic routing protocols to preserve neighbor positions. We contend and display that periodicbeaconing apart from...

--Vehicular Ad Hoc Networks (VANETs) have grown out of the need to support the growing number of wireless products that can now be used in vehicles. These products include remote keyless entry devices, personal digital assistants (PDAs), laptops and mobile telephones. As mobile wireless devices and networks become increasingly important, the demand for Vehicle-to-Vehicle (V2V) and Vehicle toRoa...

This paper proposes a new routing algorithm to facilitate communication in highly mobile wireless ad-hoc networks for motorway environments with no physical infrastructure which undergo frequent topological changes. This new reactive routing algorithm for inter-vehicular communication is based on location information in which the source node ascertains the position of its communication partner ...

Vehicular ad hoc networks (VANETs) are a new emerging recently developed advanced technology that allows wide group of applications related to providing more safety on roads, convenience for passengers, self-driven vehicles, and intelligent transportation systems (ITS). There various routing protocol categories used in VANETs, like unicast, multicast, broadcast protocols. In unicast position-ba...

This paper intends to give an introduction to ad hoc networks in general. The following topics will be discussed: The definition of ad hoc networks and its applications, moreover the paper dives a bit deeper into how routing is handled in ad hoc networks and describes a couple of different routing methods. The paper discusses routing methods from two different perspectives position based and ad...

A fault-tolerant wormhole routing algorithm on meshconnected processors is proposed. The proposed algorithm is based on the solid fault model and allows the fault polygons to be overlapped. The algorithm compares the position of fault region relative to current channel with the fault direction eld of a misrouted message to route around overlapped fault polygons. A node deactivating algorithm to...

Die Möglichkeit, mit Hilfe von drahtloser Kommunikation Nachrichten zwischen Fahrzeugen auszutauschen, wird in naher Zukunft das Autofahren sicherer und komfortabler gestalten. Insbesondere das Weiterleiten dieser Nachrichten von einem Sender zu einem oder mehreren Empfängern stellt hierbei eine interessante Herausforderung dar. In diesem Artikel wird ein positionsbasiertes Ad-Hoc-Routing-Verfa...

Routing for ad-hoc wireless network is challenging, many routing strategies have been proposed in literature. With the availability of affordable Global Position System equipped devices, location-aware routing provides a promising foundation for developing an efficient and practical solution for routing in ad-hoc wireless network. Current geographic forwarding strategies and geographic routing ...