Optimal Dynamic Spectrum Access via Periodic Channel Sensing
作者： Qianchuan Zhao , Stefan Geirhofer , Lang Tong , Brian M. Sadler
DOI: 10.1109/WCNC.2007.12
关键词: Monte Carlo method 、 Throughput 、 Mathematical optimization 、 Computer science 、 Markov process 、 Benchmark (computing) 、 Markov decision process 、 Communication channel 、 Throughput (business) 、 Linear programming 、 Optimal control
摘要: The problem of dynamically accessing a set parallel channels occupied by primary users is considered. secondary user allowed to sense and transmit in single channel. By exploiting idle periods between bursty transmissions users, using periodic sensing strategy, optimal dynamic access achieved maximizing the throughput while constraining collision probability with user. spectrum can then be formulated within framework constrained Markov decision processes (CMDPs). control policy identified via linear program, its performance analyzed numerically through Monte Carlo simulations. Finally, we compare scheme an ideal benchmark case when simultaneous all assumed.
sci-hub.se 参考文章(11)
Eitan Altman, Constrained Markov Decision Processes ,(1999)
S.D. Jones, N. Merheb, I-Jeng Wang, An experiment for sensing-based opportunistic spectrum access in CSMA/CA networks First IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2005. DySPAN 2005.. pp. 593- 596 ,(2005) , 10.1109/DYSPAN.2005.1542676
Qing Zhao, Brian M. Sadler, Dynamic Spectrum Access: Signal Processing, Networking, and Regulatory Policy arXiv: Networking and Internet Architecture. ,(2006)
Stefan Geirhofer, Lang Tong, Brian Sadler, COGNITIVE RADIOS FOR DYNAMIC SPECTRUM ACCESS - Dynamic Spectrum Access in the Time Domain: Modeling and Exploiting White Space IEEE Communications Magazine. ,vol. 45, pp. 66- 72 ,(2007) , 10.1109/MCOM.2007.358851
Stefan Geirhofer, Lang Tong, Brian Sadler, A Measurement-Based Model for Dynamic Spectrum Access in WLAN Channels military communications conference. pp. 2150- 2156 ,(2006) , 10.1109/MILCOM.2006.302405
Stefan Geirhofer, Lang Tong, Brian M. Sadler, Dynamic spectrum access in WLAN channels Proceedings of the first international workshop on Technology and policy for accessing spectrum - TAPAS '06. pp. 14- ,(2006) , 10.1145/1234388.1234402
Martin L. Puterman, Markov Decision Processes: Discrete Stochastic Dynamic Programming ,(1994)
Qing Zhao, Lang Tong, A. Swami, Decentralized cognitive mac for dynamic spectrum access First IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2005. DySPAN 2005.. pp. 224- 232 ,(2005) , 10.1109/DYSPAN.2005.1542638
R. Tandra, A. Sahai, Fundamental limits on detection in low SNR under noise uncertainty international conference on wireless networks. ,vol. 1, pp. 464- 469 ,(2005) , 10.1109/WIRLES.2005.1549453
Qing Zhao, Lang Tong, Ananthram Swami, Yunxia Chen, None, Decentralized cognitive MAC for opportunistic spectrum access in ad hoc networks: A POMDP framework IEEE Journal on Selected Areas in Communications. ,vol. 25, pp. 589- 600 ,(2007) , 10.1109/JSAC.2007.070409