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This paper describes a new implementation of the Elastic Multicast (EM) protocol including new design enhancements for improved dynamic operation. The paper also presents additional performance data collected from emulation-based mobile network experiments. EM is a low complexity extension to Simplified Multicast Forwarding (SMF) that adds group-specific dynamic pruning of the SMF-based multicast...
A wireless mesh network (WMN) is a set of three kinds of nodes: clients, routers and gateways. One of the most challenging issues when dealing with a WMN is how to deploy mesh routers when the positions of mesh clients are known. In this paper, we consider a dynamic router node placement problem where, in addition, mesh clients are mobile. To solve this issue, we apply the simulated annealing metaheuristic...
The efficiency of inter-domain routing in large-scale mobile network environments is a critical issue, as traditional prefixed addresses may fail due to the dynamic topologies of mobile networks, where devices would be required to maintain massive routing tables. To address this issue, in this paper we leverage the principles of probabilistic data structures in the inter-domain routing scheme, and...
Aiming at satisfying in a cost-effective manner the forecast traffic growth that future mobile networks will need to support, traditional distributed Radio Access Networks (RANs) are evolving towards centralized architectures. Specifically, the Cloud-RAN (C-RAN) architecture has shown that can alleviate to some extent the ever increasing Total Cost of Ownership in mobile networks. The current trend...
To deal with the distributed estimation for mobile sensor networks with switching topologies, an algorithm of the weighted average consensus-based cubature Kalman filtering is proposed by combining the advantages of the cubature Kalman filtering in information form and consensus algorithm. On the basis of the predecessors research work, the sufficient condition is presented for ensuring the weighted...
Modern Intelligent Transport Systems are based on communications between different devices (fixed and/or mobile). As many communication solutions have appeared, and the bandwidth used is similar, the more crowded communications channels have become. For non-critical applications there are several convenient (common) solutions that must be considered, such as Wi-Fi, Bluetooth or ZigBee, that can ensure...
Multi-UAS (MAS) flocking requires multiple controllers with connected communication topologies. Real-time deployment of multi-agents is commonly associated with dynamic communication topologies, which has been considered as a challenging topic. This paper proposes a novel low- computation distributed connectivity control method to generate connected communication topologies and maintain the connectivity...
Metropolitan areas witness significant fluctuations in mobile traffic due to patterns of human mobility. This fluctuation drastically deteriorates the efficiency and financial viability of conventional maximum-based network design. If networks are deployed to deal with the peak traffic rate at each site, their capacities are underutilized for most of time. To improve the efficiency of deploying base...
The Mobile Cloud Network is an emerging cost and capacity heterogeneous distributed cloud topological paradigm that aims to remedy the application performance constraints imposed by centralised cloud infrastructures. A centralised cloud infrastructure and the adjoining Telecom network will struggle to accommodate the exploding amount of traffic generated by forthcoming highly interactive applications...
Automatic Configuration Management (CM) parameter change assessment, the so-called Self-Organizing Network (SON) verification, is an important enabler for stable and high-quality modern mobile communication networks. However, it also presents a new set of challenges. While improving network stability and resolving unexpected conflicts caused by parallel configuration changes, SON verification can...
The tendency of any mobile technology is to automate as many of its processes. LTE (Long Term Evolution) introduces the concept of SON (Self-Organizing Network) that targets the automation of a large number of LTE processes. On the other hand, Peer to Peer (P2P) technology, even if it is used mainly in Internet and file sharing applications can bring significant improvements to LTE. This article discusses...
Wireless sensor networks (WSNs) serving in hostile environments are susceptible to multiple collocated failures due to explosives and natural calamities such as avalanches, landslides, etc., which can partition the network into disjoint segments. In such a scenario, federating the segments becomes essential for reestablishing communication among segments and resuming the WSN operation. Placing relays...
In this paper, we study the fundamental problem of leader election in the mobile telephone model: a recently introduced variation of the classical telephone model modified to better describe the local peer-to-peercommunication services implemented in many popular smartphone operating systems. In more detail, the mobile telephone model differs from the classical telephone model in three ways: (1) each...
Offloading the computation-intensive task of mobileinteractive applications into cloudlets has become a popularway to reduce the response time in mobile cloud computingarea. In response to the rapid change of mobile environment, researchers have proposed online offloading decisions for variousapplications. However, the pruning method they used wouldperform poorly for the non-linear topology of applications...
Mobile ad hoc networks (MANETs) are continuously self-organizing, infrastructure-less consisting of collection of mobile nodes that communicate with each other without the use of centralized authority. MANETs are perfect for positions where a fixed structure is infeasible. Today's MANETs, suffer from network partitioning. This restriction makes MANETs in appropriate for applications such as crisis...
In Wireless Sensor Networks, topology management guarantees energy efficiency and maintains the connection among the nodes.Most of the existing systems are not providing trust among the sensor nodes.Therefore,issues in security should also be considered in the management of topology in WSN.To overcome the above problem,in this paper,we propose (TBR) a TRust Based Routing with Topology management.Moreover...
With the ubiquitous usage of mobile devices, most communications are now impacted by the users' mobility. Therefore, applications and services must be designed to cope with network dynamics produced by those mobility patterns. Software research and development would benefit from taking device mobility into account. However, implementing and testing software on real devices is costly and cumbersome...
The success of Wi-Fi technology as an efficient and low-cost last-mile access solution has enabled massive spontaneous deployments generating storms of beacons all across the globe. Emerging location systems are using these beacons to observe mobility patterns of people through portable or wearable devices and offer use-cases that can help solve critical problems in the developing world. In this paper,...
Zigbee is a wireless networking standard which is broadly used in applications such as remote control and sensor applications. They are suited for operation in coarse radio environments and in isolated locations. In Zigbee based wireless networks, various routing protocols such as reactive routing protocols and Zigbee Tree Routing (ZTR) protocol were initially proposed. Among them, ZTR is widely used,...
We propose the use of a graph-theoretic metric called Algebraic Connectivity (ALGC) computed on the egocentric network of an edge to quantify the extent of shared neighborhood between the end vertices of the edge/link in mobile sensor networks (MSNs). The chances for the egocentric network of an edge to stay connected increases with increase in the number of triangles involving the end vertices of...
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