TY - JOUR
T1 - Channel access protocols for multihop opportunistic networks
T2 - Challenges and recent developments
AU - Bany Salameh, Haythem A.B.
AU - Krunz, Marwan
N1 - Funding Information:
MARWAN KRUNZ ([email protected]) received his Ph.D. degree in electrical engineering from Michigan State University, East Lansing, in 1995. He is currently a professor of electrical and computer engineering at UA and a director of the Connection One Center UA Site. He joined UA in January 1997 after a brief postdoctoral position with the University of Maryland, College Park. His recent research interests include medium access and routing protocols for mobile ad hoc networks, quality of service provisioning over wireless links, constraint-based routing, traffic modeling, and media streaming. He has published more than 140 journal articles and refereed conference papers in these areas. He received the National Science Foundation (NSF) CAREER Award (1998/2002). He currently serves on the Editorial Boards of IEEE/ACM Transactions on Networking, IEEE Transactions on Mobile Computing, and Computer Communications Journal. He served as a Technical Program Co-Chair for IEEE INFOCOM 2004, IEEE SECON 2005, the IEEE WoWMoM 2006 Symposium, and the 2001 Hot Interconnects Symposium.
Funding Information:
This research was supported in part by NSF (under grant CNS-0721935), Raytheon, and the Connection One center (an I/UCRC NSF/industry/university consortium). Any opinions, findings, conclusions, or recommendations expressed in this article are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
PY - 2009
Y1 - 2009
N2 - Heavy traffic over the unlicensed portion of the spectrum along with inefficient usage of the licensed spectrum gave impetus for a new spectrum allocation policy, the main purpose of which is to improve spectrum efficiency through opportunistic spectrum access. Cognitive radios have been proposed as a key enabling technology for such an opportunistic policy. One of the key challenges to enabling multihop CR communications is how to perform opportunistic medium access control while limiting the interference imposed on licensed users. In this article we highlight the unique characteristics of multihop cognitive radio networks, discuss key MAC design challenges specific to such networks, and present some of the work that has been done on MAC design for CRNs.
AB - Heavy traffic over the unlicensed portion of the spectrum along with inefficient usage of the licensed spectrum gave impetus for a new spectrum allocation policy, the main purpose of which is to improve spectrum efficiency through opportunistic spectrum access. Cognitive radios have been proposed as a key enabling technology for such an opportunistic policy. One of the key challenges to enabling multihop CR communications is how to perform opportunistic medium access control while limiting the interference imposed on licensed users. In this article we highlight the unique characteristics of multihop cognitive radio networks, discuss key MAC design challenges specific to such networks, and present some of the work that has been done on MAC design for CRNs.
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U2 - 10.1109/MNET.2009.5191141
DO - 10.1109/MNET.2009.5191141
M3 - Article
AN - SCOPUS:68949139311
SN - 0890-8044
VL - 23
SP - 14
EP - 19
JO - IEEE Network
JF - IEEE Network
IS - 4
ER -