The roof of an automobile would appear to be an ideal platform to place multiple-input-multiple-output (MIMO) antennas, having a large ground plane with plenty of space to separate antennas for optimum embedded element radiation efficiency. However, styling concerns often require that the antennas are to be placed close together. Thus, mutual coupling plays an important […]
Read moreAmong the solutions for broadband wireless access (BWA) provisioning, Long Term Evolution (LTE) represents one the most promising technologies. In order to effectively support the tremendous growth of mobile broadband services required by the users of the fifth generation (5G) systems, LTE is claimed to efficiently manage the contemporary presence of traditional unicast and value-added multicast services. […]
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A stochastic geometry analysis of inter-user interference in IEEE 802.15.6 body sensor networks
Inter-user interference deteriorates reliable communication in body sensor networks (BSNs) when multiple BSNs are transmitting simultaneously in close proximity to each other. Stochastic geometry provides a natural way of modeling the placement of interferers, by averaging over all potential geometrical realizations for the interferers. This paper presents a stochastic geometry analysis of inter-user interference in IEEE 802.15.6 BSNs. The […]
Read moreNetwork selection plays an important role in load balancing and radio resources management. In this paper, we use the evolutionary game theory to address the network selection problem in the constrained heterogeneous networks. An indication function is introduced into the payoff function to represent the punishment term. The population dynamics can be obtained by the […]
Read moreIn this paper, we describe dynamic unicast to increase communication efficiency in opportunistic Information-centric networks. The approach is based on broadcast requests to quickly find content and dynamically creating unicast links to content sources without the need of neighbor discovery. The links are kept temporarily as long as they deliver content and are quickly removed […]
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Full-Duplex Spectrum-Sensing and MAC-Protocol for Multichannel Nontime-Slotted Cognitive Radio Networks
Because of the asynchronization between primary and secondary wireless networks, the synchronization between primary users (PUs) and secondary users (SUs) can be hardly guaranteed in nontime-slotted cognitive radio networks (CRNs). In this paper, we propose a novel framework for multichannel nontime-slotted CRNs, where the PUs randomly access and leave the licensed channels. Since the PUs […]
Read moreNetwork on Chip (NoC) has been envisioned as a scalable fabric for many core chips. However, NoCs can consume a considerable share of chip power. Moreover, diverse applications are executed in these multicore, where each application imposes a unique load on the NoC. To realise a NoC which is Energy and Delay efficient, we propose […]
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FRACTAL: A framework for recursive abstraction of SDN control-plane for large-scale production networks
Software-defined networking (SDN) renovates traditional networking systems by replacing a distributed, per-switch control plane with a (logically) centralized one. To design a scalable, highly available SDN control plane, it is inevitable to disseminate the network state to multiple instances horizontally by using measures like replication and partitioning. However, some recent studies reported that it is […]
Read moreConfiguring range based packet classification rules in network switches is crucial to all network core functionalities, such as firewalls and routing. However, OpenFlow, the leading management protocol for SDN switches, lacks the interface to configure range rules directly and only provides mask based rules, named flow entries. In this work we present, ORange, the first […]
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Distribution Network Verification for Secure Restoration by Enumerating All Critical Failures
If several feeders are interrupted in a severe accident, distribution networks should be restored by reconfiguring switches automatically with smart grid technologies. Although there have been several restoration algorithms developed to find the new network configuration, they might fail to restore the whole network if the network were critically damaged. The network’s design has to […]
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