TY - GEN
T1 - A decentralized MAC protocol for cognitive radio networks
AU - Jiang, Shuhua
AU - Chao, Li Hua
AU - Chao, Hsi-Lu
PY - 2011
Y1 - 2011
N2 - One of the most challenging issues in cognitive radio networks is efficient channel sensing and channel accessing. In this paper, an analytical queueing model is used to derive the probability of successful transmission, channel sensing time, and transmission quota, for each data channel. Each CR node records the derived statistics in a channel preference matrix. A CR pair selects a data channel for sensing and accessing based on the successful transmission probability. According to the derivations, we design a media access control protocol, which utilizes the powerful computation capability of cloud servers to estimate the behavior of PUs, for infrastructure-based cognitive radio networks. We validate the analytical model with simulation results. Besides, the proposed MAC protocol is compared with other approaches via simulation. The simulation results showed that our protocol performs well in both utilization of channel idle time and the average tries of channel search.
AB - One of the most challenging issues in cognitive radio networks is efficient channel sensing and channel accessing. In this paper, an analytical queueing model is used to derive the probability of successful transmission, channel sensing time, and transmission quota, for each data channel. Each CR node records the derived statistics in a channel preference matrix. A CR pair selects a data channel for sensing and accessing based on the successful transmission probability. According to the derivations, we design a media access control protocol, which utilizes the powerful computation capability of cloud servers to estimate the behavior of PUs, for infrastructure-based cognitive radio networks. We validate the analytical model with simulation results. Besides, the proposed MAC protocol is compared with other approaches via simulation. The simulation results showed that our protocol performs well in both utilization of channel idle time and the average tries of channel search.
KW - channel access
KW - channel sensing
KW - cognitive radio network
UR - http://www.scopus.com/inward/record.url?scp=79960579661&partnerID=8YFLogxK
U2 - 10.1109/INFCOMW.2011.5928818
DO - 10.1109/INFCOMW.2011.5928818
M3 - Conference contribution
AN - SCOPUS:79960579661
SN - 9781457702488
T3 - 2011 IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2011
SP - 24
EP - 29
BT - 2011 IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2011
T2 - 2011 IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2011
Y2 - 10 April 2011 through 15 April 2011
ER -