The impact of cognitive radio techniques on the energy efficiency of a downlink cellular
system in which multiple relays assist the transmission of the base station toward multiple …

A relay cooperation scheme is proposed for the downlink of multicell multiple-input-multiple-
output cellular networks. The relay stations (RSs) will cooperatively transmit the signal …

By relying on a wireless backhaul link, relay stations enhance the performance of cellular
networks by achieving the required reliability at a savings of infrastructure cost and energy …

The effect of relaying in terms of energy efficiency is an important and interesting issue in
cellular communications. In this paper, two relaying schemes for uplink are analyzed and …

Energy-efficient communication is an important re-quirement for mobile devices, as the
battery technology has not kept up with the growing requirements stemming from ubiquitous …

Energy efficiency in cellular networks has become an important design parameter in recent
research works due to the global climate change and growing demand for very high data …

Wireless relays extend coverage, improve spectral efficiency, and enhance reliability and
rates of wireless cellular communication systems. In this work, we introduce the fundamental …

In this paper we investigate the combination of rate and power allocation techniques in an
orthogonal cooperative scheme using infra-structured (fixed) relays, under the incremental …

This paper is focused on the optimization of transmitted power in a cooperative decoded
relaying scheme for nodes belonging to the single primary route towards. a destination. The …

A study of the effects of co-channel interference on a multirelay system with decode-and-
forward (DF) protocol is presented. Orthogonal relaying is considered, and all relays that …