Due to increasing demand of high speed data rate for satellite multimedia and broadcasting services and spectrum scarcity problem in satellite bands, exploring new techniques for …
The author presents a unified treatment of this highly interdisciplinary topic to help define the notion of cognitive radio. The book begins with addressing issues such as the fundamental …
S Parsaeefard, AR Sharafat - IEEE Transactions on Mobile …, 2012 - ieeexplore.ieee.org
We propose a robust distributed uplink power allocation algorithm for underlay cognitive radio networks (CRNs) with a view to maximizing the social utility of secondary users (SUs) …
S Ma, D Sun - IEEE Communications Letters, 2012 - ieeexplore.ieee.org
We propose a novel method for chance constrained robust beamforming problem in cognitive radio (CR) networks. Considering the channel estimation errors in practice, the …
J Liu, W Chen, Z Cao, YJA Zhang - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
Cognitive Radio (CR) can significantly improve the utilization of the precious radio spectrum by allowing Secondary Users (SUs) to borrow the licensed spectrum if they do not cause …
RM Joshi, A Madanayake, J Adikari… - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
A broadband digital beamforming algorithm is proposed for directional filtering of temporally- broadband bandpass space-time plane-waves at radio frequencies (RFs). The …
We consider K links operating concurrently in the same spectral band. Each transmitter has multiple antennas, while each receiver uses a single antenna. This setting corresponds to …
In this paper, we investigate the performance of relay selection in an underlay cognitive radio system in the presence of primary user (PU) interference. In particular, we consider a …
S Mallick, R Devarajan, MM Rashid… - 2012 IEEE …, 2012 - ieeexplore.ieee.org
In this paper, we develop robust power allocation schemes for cognitive radio networks (CRNs) that can operate in multiple bands with cooperative relays considering uncertainty …