TY - JOUR
T1 - Performance analysis of a control-free dynamic spectrum access scheme
AU - Xin, Chunsheng
AU - Song, Min
AU - Ma, Liangping
AU - Shen, Chien Chung
PY - 2011/12
Y1 - 2011/12
N2 - In dynamic spectrum access (DSA), secondary users (SUs) dynamically search and access spectrum bands unused by primary users to communicate. We propose a DSA scheme where it does not require a control channel for coordination and SU nodes do not need to exchange control messages to rendezvous. Every SU node selects its operational channel independently. When a node wants to rendezvous with another node, the former estimates the operational channel of the latter. The scheme ensures that such rendezvous has a high probability of success, while operational channels are diversified to reduce co-channel interference and hence increase throughput. We develop a mathematical model to analyze the performance of the scheme. Both analytical and simulation results show that the scheme achieves very good performance.
AB - In dynamic spectrum access (DSA), secondary users (SUs) dynamically search and access spectrum bands unused by primary users to communicate. We propose a DSA scheme where it does not require a control channel for coordination and SU nodes do not need to exchange control messages to rendezvous. Every SU node selects its operational channel independently. When a node wants to rendezvous with another node, the former estimates the operational channel of the latter. The scheme ensures that such rendezvous has a high probability of success, while operational channels are diversified to reduce co-channel interference and hence increase throughput. We develop a mathematical model to analyze the performance of the scheme. Both analytical and simulation results show that the scheme achieves very good performance.
KW - Dynamic spectrum access
KW - MAC
KW - channel selection
KW - cognitive radio networks
KW - control-free
KW - performance analysis
UR - http://www.scopus.com/inward/record.url?scp=84355161464&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84355161464&partnerID=8YFLogxK
U2 - 10.1109/TWC.2011.101211.110364
DO - 10.1109/TWC.2011.101211.110364
M3 - Article
AN - SCOPUS:84355161464
SN - 1536-1276
VL - 10
SP - 4316
EP - 4323
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 12
M1 - 6059443
ER -