Energy efficiency is a central challenge in sensor networks, and the radio is a major
contributor to overall energy node consumption. Current energy-efficient MAC protocols for …

Relay selection is considered to enhance the secrecy of a dual-hop regenerative multi-relay
system with an eavesdropper. Without assuming perfect decoding at the relays, the secrecy …

Wireless networks are characterized by having limited resources accessed by a large
number of mobile stations with distinct capabilities. In such challenged environment the …

Advances in wireless technologies, including more powerful devices and low cost radio
technologies, have potential to drive an ubiquitous utilization of Internet services …

Advances in wireless technologies, including more powerful devices and low cost radio
technologies, have potential to drive a ubiquitous utilization of Internet services …

Advances in wireless technologies, including more powerful devices and low cost radio
technologies, have potential to drive an ubiquitous utilization of Internet services …

In recent years, a new paradigm for communication called cooperative communications has
been proposed for which initial information theoretic studies have shown the potential for …

Cooperative relaying methods can improve wireless links, but introduce overhead due to
relay selection and resource reservation compared to non-cooperative transmission. In …

High data rates, large coverage area and reduce the effect of multipath fading are key points
of researchers for wireless communication systems. These facilities are provided by MIMO …

Over the last decade cooperative communication in wireless sensor networks (WSN)
received much attention. A lot of works have been done to propose a MAC layer that …