For the inter-LMA network environment in PMIPv6, location information of communicating Mobile Node(MN) and Correspondent Node(CN) is maintained in the different Local Mobility Anchor(LMA). Accordingly, when both MN and CN move to different MAGs simultaneously, race condition occurs in which updated location information of MN is forwarded to the previous MAG of CN. In this paper, an inter-LMA Ro...

Combining the advantages of FMIPv6 and HMIPv6 (FHMIPv6) is more suitable for time –sensitive services. We propose an improvement based on it by optimizing the address configuration stage on MN (Mobile Node) and setting handover initation stage on MAP (Mobility Anchor Point) so that the handover delay and packet loss is reduced. Our paper presents simulation result of these solutions (Hierarchic...

In this study, we present a novel mobile anchor-assisted node Localization algorithm using Intersection and Exclusion (LIE) for wireless sensor networks. It sets up a discrete network model and then solves a system of geographic constraints based on connectivity information from the underlying communication network. Moreover, after the nearby nodes have completed localization, they become beaco...

Although several methods based on the RSSI measurement exist for localizing a mobile node in the WSN, a method which can produce precise results is still unavailable. In this study we present an alternative technique based on fingerprint which uses a minimum number of anchor nodes for the detection of the location of a mobile node. In this technique an indoor area is thought as a matrix consist...

In Section 3 of the paper, we use a reduced form model to account for how consumers select their anchor node. In this section, we provide a formal micro-model of a process that provides justi cation for our assumptions. We also consider the possibility that some consumers may switch their anchor nodes when encountering a link to a higher quality site and show that including this feature in our ...

This paper presents localization in wireless sensor networks (WSNs) in presence of obstacles using a mobile anchor. The proposed scheme uses a mobile anchor, which finds its location via global positioning system (GPS). The mobile anchor broadcasts its coordinate while it navigates through sensing region. The static sensor nodes receive beacon messages when the mobile anchor and sensor nodes ha...

The location information obtained using a sensor is a critical requirement in wireless sensor networks. Numerous localization schemes have been proposed, among which mobile-anchor-node-assisted localization (MANAL) can reduce costs and overcome environmental constraints. A mobile anchor node (MAN) provides its own location information to assist the localization of sensor nodes. Numerous path pl...

Aiming at improving the precision of nodes’ localization, this paper analyses the source of the localization error when using the least square algorithm, and proposes the principle to choose the benchmark anchor nodes in reducing the power of equation. Based on this principle, the algorithm choosing the nearest node as the benchmark anchor node in LSM and the algorithm choosing the synthetic ne...