IEEE 802.15.4a networks can provide the geographic routing solution with high location accuracy for the indoor environments. However, in the non-line-of-sight (NLOS) environments, the IEEE 802.15.4a networks may have a large scale location error and an unstable communication link. In this article, we propose a location estimation and dynamic link detection scheme for the geographic routing in t...

The geographic routing technology is good for the self-organizing and large-scale Wireless Sensor Networks(WSNs), and the energy-limited sensor nodes require the energy used for routing to be minimum. In this paper a new energy-efficient geographic routing algorithm is proposed and it is distributed and based on the geographic routing, the topology characteristics of the network and the wireles...

Delay-tolerant networks (DTNs) have the potential to interconnect devices in regions that current networking technology cannot reach. Delay Tolerant Networks are utilized in various operational environments, including those subject to disruption and disconnection and those with high-delay, such as Vehicular ad-hoc Networks (VANET). Vehicular networks can be seen as an example of hybrid delay to...

In this paper focus on sleep scheduling for geographic routing in duty cycled WSNs with mobile sensors and proposes two geographic-distance-based connected-k neighbourhood (GCKN) sleep scheduling algorithms. The first one is the geographic-distance-based connected-k neighbourhood for first path (GCKNF) sleep scheduling algorithm. The second one is the geographic-distance-based connected-k neigh...

Mobile Adhoc Networks (MANETs) are the self-organized networks in which connections are not established for exchange the information. In MANET, there are major problems like scalability, dynamic topology, high mobility and routing. The network can be damaged due to the high mobility. Topology based routing can fail when there is a dynamic change in the network topology. To avoid these problems,...

In this paper, we examine the role network topology play in the geographic routing decision and its performance. Much of the work carried out on geographic routing in current decade to navigate data in localized networks. In ideal environment, it has been verified to provide significant performance improvement over stringently address-centric routing approaches. Geographic routing protocol’s gr...

Recently, geographic routing in wireless networks has gained attention due to several advantages of location information. Location information eliminates the necessity to set up and maintain explicit routes, which reduces communication overhead and routing table size. These advantages allow scalability especially in dynamic and unstable wireless networks. However, no matter which technologies o...