We explore a full-duplex technique in wireless communication particularly for relay networks. We consider the relay to operate in full-duplex, which occurs when transmission and reception are conducted in the same channel. We investigate potential benefits of full-duplex technique in relay networks, which uses multiple antennas for transmission and reception combined with the Amplify-Forward (A...

This paper considers an amplify-and-forward relay network and determines its maximum stable throughput. Amplify-and-forward (and other forwarding schemes) form the core mechanism for enabling cooperative communication in wireless networks, and thus determining stabilizing policies for such networks is an important problem. The interaction between nodes in this network is described in terms of c...

In this paper, we conduct a detailed measurement study to characterize and compare the “group-level”behavior of users in Facebook, Twitter and Google+. We focus on Popular, Cross (with account in three OSNs) and Random group of users in each OSN since they offer complementary views. We capture user behavior with the following metrics: user connectivity, user activity and user reactions. Our gro...

Consider a wireless MIMO multi-hop channel with ns non-cooperating source antennas and nd fully cooperating destination antennas, as well as L clusters containing k non-cooperating relay antennas each. The source signal traverses all L clusters of relay antennas, before it reaches the destination. When relay antennas within the same cluster scale their received signals by the same constant befo...