A Stochastic Geometry Framework for Asynchronous Full-Duplex Communications

Speaker: Andrea Munari, Date: 12th of February 2016, Time: 13:45, Room: 318 (third floor of DEI/G building)

Abstract. In-band full-duplex is emerging as a promising solution to enhance throughput in wireless networks. Allowing nodes to simultaneously send and receive data over the same bandwidth can potentially double the system capacity, and a good degree of maturity has been reached in terms of physical layer design with practical demonstrations in simple topologies. Continue Reading…

Cell Zooming: A New Approach to Energy Efficiency in Cellular Network

Speaker: Atieh R. Khamesi, Date: 5th of February 2016, Time: 13:30, Room: 201 (DEI/A)

Abstract. With the enormous growth in the telecommunication industry, energy efficiency has become a critical issue. In this talk, I will introduce the concept of “Cell Zooming”, which was proposed to achieve both Energy Efficiency (EE) and Area Spectral Efficiency (ASE) in mobile networks. In my talk, three different Cell Zooming algorithms will be presented and their performance will be evaluated. Finally, some ideas for future work will be discussed.

On the Evaluation of LTE Random Access Channel Overload in a Smart City Scenario

Speaker: Marco Centenaro and Michele Polese, Date: 29th of January 2016, Time: 13:30, Room: 201 (DEI/A)

Abstract. Several studies assert that the random access procedure of the Long Term Evolution (LTE) cellular standard may not be effective whenever a massive number of synchronous connection attempts are performed by terminals, as may happen in a typical Internet of Things or Smart City scenario. Continue Reading…

Power Control in Cognitive Radio and Femtocell Networks

Speaker: Mohammad Robat Mili, Date: 18th of December 2015, Time: 13:30, Room: 201 (DEI/A)

Abstract. In this talk, I will explain how to allocate the optimum power transmission in cognitive radio and femtocell networks. In a cognitive radio scenario which consists of primary users and secondary users, secondary users are allowed to opportunistically access the existing spectrum without adverse effect on primary users. Continue Reading…

Long-range, low-power communications for IoT: the LoRa technology

Speaker: Daniel Zucchetto, Date: 4th of December 2015, Time: 13:30, Room: 201 (DEI/A)

Abstract. The basis of a IoT system is to be found on the physical connection between the devices in the IoT network. Most of the connections between things have to be done using wireless technologies, since the number of devices to connect is usually large and, in many scenarios, they need to be mobile,  Continue Reading…

 

On the relation between underwater acoustic and optical channels. Cruise ALOMEX’15 – Sea Trial.

Speaker: Filippo Campagnaro and Roberto Francescon, Date: 20th of November 2015, Time: 13:30, Room: 201 (DEI/A)

Traditionally, underwater communication employs acoustic modems in order to achieve long transmission range at low bitrate. However, recent studies demonstrate that optical transmissions are most suitable for underwater short range and high bitrate communication. Continue Reading…

Biomedical signal compression with time- and subject-adaptive dictionary for wearable devices

Speaker: Valentina Vadori, Date: 13th of November 2015, Time: 13:30, Room: 201 (DEI/A)

Abstract. Recent advances in wearable devices hold the promise to enhance the efficiency and applicability of telemedicine solutions. These devices allow seamless, non-invasive and inexpensive gathering of biomedical signals such as electrocardiogram (ECG), photoplethysmogram (PPG), heart rate, blood pressure, blood oxygen saturation, and respiration (RESP). Continue Reading…

Caching Strategies in Heterogeneous Networks with D2D, small BS and macro BS communications

Speaker: Irene Pappalardo, Date: 6th of November 2015, Time: 13:30, Room: 201 (DEI/A)
Abstract. The increase  in wireless data traffic is encouraging a shift from standard cellular networks, with one base station providing wireless connection to all the users in the cell, to heterogeneous networks, where several small base stations can assist the macro base station in providing connection to all the users. Continue Reading…