A comprehensive survey on spectrum sharing: Architecture, energy efficiency and security issues
The future generation networks (5G) are expected to achieve high data rates, reduced
latency, increased spectral efficiency and energy efficiency of the system. Since the …
latency, increased spectral efficiency and energy efficiency of the system. Since the …
Fundamental limits of spectrum-sharing in fading environments
Traditionally, the frequency spectrum is licensed to users by government agencies in a rigid
manner where the licensee has the exclusive right to access the allocated band. Therefore …
manner where the licensee has the exclusive right to access the allocated band. Therefore …
Capacity limits and performance analysis of cognitive radio with imperfect channel knowledge
Cognitive radio (CR) design aims to increase spectrum utilization by allowing the secondary
users (SUs) to coexist with the primary users (PUs), as long as the interference caused by …
users (SUs) to coexist with the primary users (PUs), as long as the interference caused by …
On capacity under receive and spatial spectrum-sharing constraints
M Gastpar - IEEE transactions on Information Theory, 2007 - ieeexplore.ieee.org
Capacity is often studied under constraints on the channel input signals. This paper
investigates the behavior of capacity when constraints are placed on the channel output …
investigates the behavior of capacity when constraints are placed on the channel output …
Capacity and power allocation for spectrum-sharing communications in fading channels
This paper investigates the fundamental capacity limits of opportunistic spectrum-sharing
channels in fading environments. The concept of opportunistic spectrum access is motivated …
channels in fading environments. The concept of opportunistic spectrum access is motivated …
Multi-user diversity in a spectrum sharing system
We investigate the effects of multi-user diversity in a spectrum sharing system where
secondary users restrictively utilize a spectrum licensed to primary users only if interference …
secondary users restrictively utilize a spectrum licensed to primary users only if interference …
Optimizations of a MIMO relay network
Relay networks have received considerable attention recently, especially when limited size
and power resources impose constraints on the number of antennas within a wireless …
and power resources impose constraints on the number of antennas within a wireless …
Fundamental capacity limits of cognitive radio in fading environments with imperfect channel information
In this paper, we analyze the capacity gains of opportunistic spectrum-sharing channels in
fading environments with imperfect channel information. In particular, we consider that a …
fading environments with imperfect channel information. In particular, we consider that a …
Spectrum sensing in cognitive radio networks: the cooperation‐processing tradeoff
Opportunistic unlicensed access to the (temporarily) unused frequency bands across the
licensed radio spectrum is currently being investigated as a means to mitigate the spectrum …
licensed radio spectrum is currently being investigated as a means to mitigate the spectrum …
[HTML][HTML] Spectrum sharing in cognitive radio communication system using power constraints: A technical review
Due to the explosive growth of wireless services with high-speed and better quality-of-
services, the demand of spectrum is increasing proportionally. In addition to this, the fixed …
services, the demand of spectrum is increasing proportionally. In addition to this, the fixed …