Cognitive radio (CR) is a revolution in radio technology and is viewed as an enabling
technology for dynamic spectrum access. This paper investigates how to design distributed …

This paper presents a distributed cross-layer optimization algorithm for a multihop cognitive
radio network, with the objective of maximizing data rates for a set of user communication …

Cognitive radio technology improves radio resource usage by reconfiguring the wireless
connection settings according to the optimum decisions, which are made on the basis of the …

Scheduling spectrum access and allocating power and rate resources are tasks affecting
critically the performance of wireless cognitive radio (CR) networks. The present contribution …

Cognitive radio networks (CRNs) have the potential to utilize spectrum efficiently and are
positioned to be the core technology for the next-generation multihop wireless networks. An …

Cognitive radio (CR) capitalizes advances in signal processing and radio technology and is
capable of reconfiguring RF and switching to desired frequency bands. It is a frequency …

Cognitive radios (CRs) have a great potential to improve spectrum utilization by enabling
users to access the spectrum dynamically without disturbing licensed primary radios (PRs) …

Routing in multi-hop cognitive radio net-works (CRN) should consider how to dynamically
switch frequency band for either per flow throughput guarantee or global spectrum …

Cognitive radios (CR) have the ability to dynamically adapt to local spectrum availability. In a
multi-hop wireless network comprised of CR-enabled devices, medium access control …

Genetic algorithms are well suited for optimization problems involving large search spaces.
In this paper, we present several approaches designed to enhance the convergence time …