Abstract
The main challenges of cognitive radio include spectrum sensing at the physical (PHY) layer to detect the activity of primary users and spectrum sharing at the medium access control (MAC) layer to coordinate access among coexisting secondary users. In this paper, we consider a cognitive radio network in which a primary user shares a channel with secondary users that cannot distinguish the signals of the primary user from those of a secondary user. We propose a class of distributed cognitive MAC protocols to achieve efficient spectrum sharing among the secondary users while protecting the primary user from potential interference by the secondary users. By using a MAC protocol with one-slot memory, we can obtain high channel utilization by the secondary users while limiting interference to the primary user at a low level. The results of this paper suggest the possibility of utilizing MAC protocol design in cognitive radio networks to overcome limitations in spectrum sensing at the PHY layer as well as to achieve spectrum sharing at the MAC layer.
| Original language | English |
|---|---|
| Article number | 5957243 |
| Pages (from-to) | 2627-2637 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Communications |
| Volume | 59 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2011 Sep 1 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
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Cognitive MAC protocols using memory for distributed spectrum sharing under limited spectrum sensing. / Park, Jaeok; Van Der Schaar, Mihaela.
In: IEEE Transactions on Communications, Vol. 59, No. 9, 5957243, 01.09.2011, p. 2627-2637.Research output: Contribution to journal › Article
TY - JOUR
T1 - Cognitive MAC protocols using memory for distributed spectrum sharing under limited spectrum sensing
AU - Park, Jaeok
AU - Van Der Schaar, Mihaela
PY - 2011/9/1
Y1 - 2011/9/1
N2 - The main challenges of cognitive radio include spectrum sensing at the physical (PHY) layer to detect the activity of primary users and spectrum sharing at the medium access control (MAC) layer to coordinate access among coexisting secondary users. In this paper, we consider a cognitive radio network in which a primary user shares a channel with secondary users that cannot distinguish the signals of the primary user from those of a secondary user. We propose a class of distributed cognitive MAC protocols to achieve efficient spectrum sharing among the secondary users while protecting the primary user from potential interference by the secondary users. By using a MAC protocol with one-slot memory, we can obtain high channel utilization by the secondary users while limiting interference to the primary user at a low level. The results of this paper suggest the possibility of utilizing MAC protocol design in cognitive radio networks to overcome limitations in spectrum sensing at the PHY layer as well as to achieve spectrum sharing at the MAC layer.
AB - The main challenges of cognitive radio include spectrum sensing at the physical (PHY) layer to detect the activity of primary users and spectrum sharing at the medium access control (MAC) layer to coordinate access among coexisting secondary users. In this paper, we consider a cognitive radio network in which a primary user shares a channel with secondary users that cannot distinguish the signals of the primary user from those of a secondary user. We propose a class of distributed cognitive MAC protocols to achieve efficient spectrum sharing among the secondary users while protecting the primary user from potential interference by the secondary users. By using a MAC protocol with one-slot memory, we can obtain high channel utilization by the secondary users while limiting interference to the primary user at a low level. The results of this paper suggest the possibility of utilizing MAC protocol design in cognitive radio networks to overcome limitations in spectrum sensing at the PHY layer as well as to achieve spectrum sharing at the MAC layer.
UR - http://www.scopus.com/inward/record.url?scp=80052916749&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80052916749&partnerID=8YFLogxK
U2 - 10.1109/TCOMM.2011.063001.100388
DO - 10.1109/TCOMM.2011.063001.100388
M3 - Article
AN - SCOPUS:80052916749
VL - 59
SP - 2627
EP - 2637
JO - IEEE Transactions on Communications
JF - IEEE Transactions on Communications
SN - 0096-1965
IS - 9
M1 - 5957243
ER -