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Population protocols provide theoretical foundations for mobile tiny device networks in which global behavior emerges from a set of simple interactions between anonymous agents. The works in this area mostly focus on studying the computational power of the model. Results hold as long as a fair scheduler, which governs the interactions between nodes, ensures that all reachable system states may eventually...
In this paper we study the information spreading behavior of selected, mobility models combined with epidemic algorithms and the dynamic routing efficiency of gossip based routing algorithms on ad-hoc networks. Epidemic algorithms follow a paradigm of nature where simple rules dictate the spread of information by having a local view of the environment. In our work, three models of mobility, Random...
In this paper, we study the effects of mobility on network parameters in hierarchical ad hoc networks. Several mobility models have been designed and studied to mimic the behavior of real world mobility in networks. They have been successful in modeling the movement of mobile nodes in simulations. However, in this work, we show that several mobility models fall short of extending the same result to...
We present PedSims, a suite of mobility models spanning the entire range from the classic random waypoint (RWP), to correlated movement, to trace-level-quality social-activity-based mobility. Instrumenting PedSims at various levels of structural complexity we assess and quantify the impact of real world mobility patterns, such as common interests or synchronous behavior, on ad hoc network performance...
The computing progression is towards ubiquitous computing with many interesting happenings and severe challenges. MANET is a collection of intercommunicating mobile hosts forming a spontaneous network without using established network infrastructure and has established promising role in ubiquitous computing. MANET nodes mounted on moving vehicles, wearable devices & as personal medical devices...
Research on wireless sensor networks has recently received much attention as they offer an advantage of monitoring various kinds of environment by sensing physical phenomenon. Among various issues, energy consumption is one of the most important criteria for routing protocol in wireless sensor networks (WSNs). This paper introduces an energy efficient clustering algorithm for mobile sensor network...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
In this paper, we address the issue of transmission power control (TPC) in wireless ad hoc networks. Power control plays an important role in energy saving and network performance enhancement. However, the existing TPC schemes either face the problem of hidden and exposed terminal or have additional hardware requirements. We propose a novel distributed power control protocol, called Receiver Initiated...
In this paper, we propose an adaptive pacing scheme at the link layer for IEEE 802.11 based multihop wireless networks. Our objective is to improve the performance of higher layer protocols without any modifications to them. Our adaptive pacing scheme estimates the four-hop transmission delay in the network path without incurring any additional overheads, and accordingly paces the packets to reduce...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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