COMM

Cloud computing datacenters provide thousands to millions of virtual machines (VMs) on-demand in highly dynamic environments, requiring quick placement of requested VMs into available physical machines (PMs). Due to the randomness of customer requests, ...

Software-Defined Networking (SDN) has been one of the most successfull networking model over the past few years. The model decouples the network control and forwarding functions enabling the underlying infrastructure complexity to be programmed by ...

Software Defined Radio (SDR) is an approach where signal processing components of a radio transceiver are moved from the dedicated hardware to a combination of software and general purpose processors. This change offers many advantages, mainly for ...

The growing traffic demand in broadband wireless access networks requires increasingly efficient resource allocation mechanisms and Quality of Service (QoS) guarantee, especially in mobility and low quality signal scenarios, with devices moving at high ...

This paper shows the design of a novel compact Planar Inverted F antenna (PIFA) for Ultra-High Frequency (UHF) band passive radio frequency identification (RFID) tag. The antenna is designed to operate at 915 MHz frequency. Electromagnetic simulation ...

With the explosive development of wireless technologies, the demand of electromagnetic spectrum has been growing dramatically. Therefore, looking for more available spectrum, regulators have already begun to study secondary assignments in licensed ...

Information-Centric Networking (ICN) is one of the most promising model for dealing with the cern of the current Internet scenario, that is content. In this model, either routers or user devices in the network are capable of storing content in cache, ...

Cloud storage services allow a simple collaborative environment in which users share their files. To perform this, users state which files they want to share and who is able to access them. Recently, Silva et al. introduced an idea that does not require ...

Users are changing their traditional communication paradigm based on voice calls or text messages to real-time or on-demand video services consumed on mobile devices. In this sense, the transmission of video content considering an adequate Quality of ...

The DNS Security Extensions (DNSSEC) add a new layer of security based on public-key infrastructure: each DNS record is digitally signed to verify the authenticity of the answer. However, the introduction of DNSSEC has an impact in the operational ...