TY - GEN
T1 - Adaptive sensing cycle for multichannel cognitive radio networks based on packet statistics
AU - Zhang, Yalin
AU - Sousa, Elvino S.
AU - Song, Liang
AU - Zhang, Qinyu
AU - Hatzinakos, Dimitrios
PY - 2010
Y1 - 2010
N2 - Multichannel sensing scheduling and interference avoidance are two major challenges for medium access in Cognitive Radio Networks (CRN). In this paper, we propose an adaptive sensing cycle scheme for scheduling multichannel sensing with interference avoidance in CRN. The principle of the proposed adaptive sensing cycle scheme is to prioritize the multichannel sensing and access based on interference estimation from packet statistics. To keep fairness of media access within the CRN, the sensing cycle is formulated under the constrained of constant overall sensing rate for all nodes. Unlike conventional spectrum sensing in physical layer, the interference estimation is based on packet statistics in Media Access Control (MAC) layer and measures the statistical channel availability beyond instantaneous channel availability. Radio performance is studied in a test-bed environment under various interference intensities: the results show that more than 45% throughput improvement is achieved in interference-intensive environments.
AB - Multichannel sensing scheduling and interference avoidance are two major challenges for medium access in Cognitive Radio Networks (CRN). In this paper, we propose an adaptive sensing cycle scheme for scheduling multichannel sensing with interference avoidance in CRN. The principle of the proposed adaptive sensing cycle scheme is to prioritize the multichannel sensing and access based on interference estimation from packet statistics. To keep fairness of media access within the CRN, the sensing cycle is formulated under the constrained of constant overall sensing rate for all nodes. Unlike conventional spectrum sensing in physical layer, the interference estimation is based on packet statistics in Media Access Control (MAC) layer and measures the statistical channel availability beyond instantaneous channel availability. Radio performance is studied in a test-bed environment under various interference intensities: the results show that more than 45% throughput improvement is achieved in interference-intensive environments.
UR - https://www.scopus.com/pages/publications/79951862855
U2 - 10.1109/GLOCOMW.2010.5700222
DO - 10.1109/GLOCOMW.2010.5700222
M3 - 会议稿件
AN - SCOPUS:79951862855
SN - 9781424488650
T3 - 2010 IEEE Globecom Workshops, GC'10
SP - 1658
EP - 1662
BT - 2010 IEEE Globecom Workshops, GC'10
PB - IEEE Computer Society
T2 - 2010 IEEE Globecom Workshops, GC 2010
Y2 - 5 December 2010 through 10 December 2010
ER -