Authors:
Nadhir Ben Halima
1
and
Mohammad Ayoub Khan
2
Affiliations:
1
Taibah University, Saudi Arabia
;
2
Sharda University, India
Keyword(s):
CN, SDR, QoS, CR.
Related
Ontology
Subjects/Areas/Topics:
Data Communication Networking
;
Network Architectures
;
Next-Generation Communication Networks
;
Quality-Of-Service
;
Telecommunications
;
Ubiquitous Communication Networks
Abstract:
Wireless Networks are limited in energy and resources, are subject to development constraints. The
difficulties are such as the increasing RF spectrum saturation and efficient path discovery. The Cognitive
Wireless Networks, leaning on a form communication model, develop new strategies to mitigate the
inefficient use of the spectrum. The first application of the concept of cognitivity to communications was
focused on exploiting the dynamics in spectrum utilization (cognitive radio), nevertheless network-wide
deployment of such concepts is foreseen in the framework of the “cognitive networks”, where the cognitive
process will be employed to support end-to-end network-wide goals such as QoS. This paper presents a
state-of-art of cognitive networks and proposes a framework, architecture for cognitive networks. This paper
will also discuss mechanisms for self-adaptation, learning and evolutionary functionalities to support
users/applications end-to-end goals.