DSpace Repository

Browsing Articles by Subject "Energy efficiency"

Browsing Articles by Subject "Energy efficiency"

Sort by: Order: Results:

  • Energy detection based spectrum sensing over enriched multipath fading channels 
    Bagheri, Alireza; Sofotasios, Paschalis C.; Tsiftsis, Theodoros A.; Ho-Van, Khuong; Loupis, Michael I.; Freear, Steven; Valkama, Mikko (Institute of Electrical and Electronics Engineers Inc., 2016-09-12)
    Energy detection has been for long constituting the most popular sensing method in RADAR and cognitive radio systems. The present paper investigates the sensing behaviour of an energy detector over Hoyt fading channels, ...
  • Energy efficient switching between data transmission and energy harvesting for cooperative cognitive relaying systems 
    Miridakis, Nikolaos I.; Tsiftsis, Theodoros A.; Alexandropoulos, George C.; Debbah, Merouane (Institute of Electrical and Electronics Engineers Inc., 2016-07-12)
    A dual-hop cognitive (secondary) relaying system incorporating collaborative spectrum sensing to opportunistically switch between data transmission and energy harvesting is introduced. The secondary relays, first scan the ...
  • On the energy efficiency in multi-user multi-relay coded network 
    Qi, Nan; Xiao, Ming; Tsiftsis, Theodoros A.; Cao, Phuong L.; Skoglund, Mikael; Li, Lixin (Institute of Electrical and Electronics Engineers Inc., 2016-06-27)
    In this paper, the energy efficiency (EE) of a cooperative diversity system with maximum diversity network coding (MDNC) is studied. In the considered system, channel state information (CSI) is only available at the receivers ...