… existing spectrum allocation policies provide a fixed spectrum … spectrum assignment prevents
network users from efficiently utilizing the available spectrum since there are: 1) spectrum …

… addition to the expected shortage of the radio spectrum, also known as the spectrum scarcity
problem. However, it was argued in [3] that spectrum scarcity is not mainly due to shortage …

… joint spectrum allocation and scheduling problems in cognitive radio wireless networks with
… We study the joint spectrum allocation and scheduling problems, which have never been …

… The major challenge for the spectrum … fixed spectrum allocation paradigm. In particular, we
are interested in the scenario where a number of secondary links wish to access the spectrum …

… In any case, the proposed distributed protocols require limited cooperation among network
… -allocation problem for OFDMA-based cognitive radio ad-hoc networks, where the spectrum-…

… The first standard for cognitive radio networks is IEEE 802.22, … of spectrum management
and spectrum allocation. In this paper we propose a novel protocol in which spectrum allocation …

… radio spectrum. In this paper, we present a study of different approaches and techniques wrt
spectrum allocation in cognitive radio network… spectrum allocation. The challenges that a CR …

… spectrum allocation algorithms based on reinforcement learning techniques in cognitive radio
networks… Finally, we discuss open issues in dynamic spectrum allocation that can be topics …

… to tackle the dynamic spectrum access problem in cognitive radio (CR) networks with time-…
the spectrum opportunity in a time-frequency division manner and the spectrum allocation as …

… In this paper we have proposed GA in CRN to obtain the optimum radio configurations. We
focus on spectrum allocation with the quality of service (QoS) requirements is specified in the …