Title :
A novel clustering scheme for spectrum sharing in multi-hop ad hoc Cognitive Radio Networks
Author :
Alshamrani, Ammar
Author_Institution :
Signal Corps, Res. & Studies Dept., MoD, Saudi Arabia
Abstract :
In this paper, we propose a novel clustering scheme to efficiently manage the spectrum identification and exploitation in multi-hop ad hoc Cognitive Radio Networks (CRNs). We cluster the Secondary Users (SUs) based on their geographical locations and occurring orders. Using spread spectrum techniques with different spreading codes for different clusters, one global Common Control Channel (CCC) for the whole secondary network can be facilitated and the co-channel interference between the adjacent clusters can be reduced. The proposed clustering scheme allows the SUs to initiate and maintain the clusters reliably with signaling inherent in the Medium Access Control (MAC) framework; moreover, the SUs in each cluster can benefit from all the available spectrum for concurrent transmissions without affecting other users in the adjacent clusters.
Keywords :
ad hoc networks; cochannel interference; cognitive radio; radio spectrum management; spread spectrum communication; clustering scheme; clusters reliably; cochannel interference; concurrent transmission; geographical locations; global common control channel; medium access control framework; multihop ad hoc cognitive radio networks; secondary users; spectrum exploitation; spectrum identification; spectrum sharing; spread spectrum techniques; Ad hoc networks; Bit error rate; Interchannel interference; Multicarrier code division multiple access; Sensors; Signal to noise ratio; Cognitive Radio Networks; MAC framework; Multi-Carrier CDMA; OFDM-based Transform Domain Communication System; network clustering;
Conference_Titel :
Electronics, Communications and Photonics Conference (SIECPC), 2013 Saudi International
Conference_Location :
Fira
Print_ISBN :
978-1-4673-6196-5
Electronic_ISBN :
978-1-4673-6194-1
DOI :
10.1109/SIECPC.2013.6551009