TY - GEN
T1 - Control-free dynamic spectrum access for cognitive radio networks
AU - Xin, Chunsheng
AU - Song, Min
AU - Ma, Liangping
AU - Shetty, Sachin
AU - Shen, Chien Chung
PY - 2010
Y1 - 2010
N2 - Dynamic spectrum access (DSA) promises to resolve spectrum scarcity and low spectrum utilization caused by today's static spectrum access (SSA) policy. In DSA, secondary users dynamically search and access spectrum bands that are temporarily unused by primary users. In this paper, we propose a control-free DSA algorithm for cognitive radio networks (CRN). Our algorithm enables each CRN node to select its operation band without coordination and exchange of control messages with neighbors. The contribution of our algorithm is that such an independently selected band can reach neighbors with high probability, while streamlining control complexity and overhead in DSA. We develop an analytical model to evaluate performance. Numerical results show that our control-free DSA algorithm can achieve very good performance.
AB - Dynamic spectrum access (DSA) promises to resolve spectrum scarcity and low spectrum utilization caused by today's static spectrum access (SSA) policy. In DSA, secondary users dynamically search and access spectrum bands that are temporarily unused by primary users. In this paper, we propose a control-free DSA algorithm for cognitive radio networks (CRN). Our algorithm enables each CRN node to select its operation band without coordination and exchange of control messages with neighbors. The contribution of our algorithm is that such an independently selected band can reach neighbors with high probability, while streamlining control complexity and overhead in DSA. We develop an analytical model to evaluate performance. Numerical results show that our control-free DSA algorithm can achieve very good performance.
UR - http://www.scopus.com/inward/record.url?scp=77955366436&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955366436&partnerID=8YFLogxK
U2 - 10.1109/ICC.2010.5502048
DO - 10.1109/ICC.2010.5502048
M3 - Conference contribution
AN - SCOPUS:77955366436
SN - 9781424464043
T3 - IEEE International Conference on Communications
BT - 2010 IEEE International Conference on Communications, ICC 2010
T2 - 2010 IEEE International Conference on Communications, ICC 2010
Y2 - 23 May 2010 through 27 May 2010
ER -