Multi-access Edge Computing (MEC) technology has emerged to overcome traditional cloud computing limitations, challenged by the new 5G services with heavy and heterogeneous requirements on both latency bandwidth. In this work, we tackle problem of clustering access points in MEC environments, introducing a set models be deployed at pre-provisioning phase. We go through extensive simulations rea...

This paper studies a multiple access network with K users and one Access Point (AP). It is assumed that users and the AP are equipped with M and N antennas, respectively. To access the network, each user independently decides whether to transmit in a time slot or not (no coordination between users). In this paper, we first focus on two-user random access networks and determine the optimal value...

Wireless nodes within the same vicinity contend for accessing the shared medium. The contention constraints on sharing the medium depend on the medium access control (MAC) protocol. For example, in IEEE 802.11 MAC protocol-based networks, if node i is in communication with node j, then all nodes within the same transmission range of i or j cannot communicate. On the other hand, if nodes within ...

The wide proliferation of wireless systems and the use of software radio technologies enables the employment of a heterogeneous network. In this concept services are delivered via the network that is most efficient for that service. Our solution is based on a common core network that interconnects access points of various wireless access points. A mobile host can apply multiple different access...

We are assisting to the evolution of new generation applications and services, progressively providing through a single interface more interactions among the users and between the users and the network. This is promoting the development of multi-channel applications (e.g. Skype, Cloud Computing Platforms, Facebook, ...) that are specifically designed to easily manage different services delivere...

In this paper an energy efficient TDMA MAC protocol for wireless sensor networks is presented. Wireless sensor networks use battery operated computing and sensing devices. A network of these devices will collaborate for a common application such as environmental monitoring. This protocol uses TDMA to give nodes in the WSN the opportunity to communicate collision free, the network is selforganiz...

Virtual Networks and cloud services are hot topics nowadays, being considered, together with the information centric approach, key elements for the Future Internet. In this paper, an adaptive radio resource allocation mechanism for virtual resources sharing a common heterogeneous wireless infrastructure is presented and evaluated. The Virtual Network Radio Resource Allocation (VRRA) being propo...

Wireless Sensor Networks (WSNs) are networks formed by highly constrained devices that communicate measured environmental data using low-power wireless transmissions. The increase of spectrum utilization in non-licensed bands along with the reduced power used by these nodes is expected to cause high interference problems in WSNs. Therefore, the design of new dynamic spectrum access techniques s...