Delay-optimal spectrum decision method for cognitive network
Spectrum decision was investigated within the confine of spectrum management framework for cognitive radio networks.Sensing errors in PHY layer,outage probability on wireless channel and multiple interruptions of primary user were taken into consideration.Probability-based and sensing-based spectrum...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2012-11-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2012.z2.008/ |
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| _version_ | 1841539827740180480 |
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| author | Wu-jian SUN Na LI Yang LIU Le SUN Tao CHEN Hao LI Ou LI |
| author_facet | Wu-jian SUN Na LI Yang LIU Le SUN Tao CHEN Hao LI Ou LI |
| author_sort | Wu-jian SUN |
| collection | DOAJ |
| description | Spectrum decision was investigated within the confine of spectrum management framework for cognitive radio networks.Sensing errors in PHY layer,outage probability on wireless channel and multiple interruptions of primary user were taken into consideration.Probability-based and sensing-based spectrum decision methods were proposed,which were capable of balancing traffic evenly among licensed.For the probability-based method,short-time first discipline was employed to further shorten average residual time,closed-formed expression were presented based on dynamical programing.For the sensing based method,new channel could be chosen for uncompleted transmission,which alleviated the time spent in waiting primary user.Optimal residual time was obtained by choosing the minimal value of the two methods.Furthermore,spectrum heterogeneity was taken into consideration and theoretical analysis was of general sense.Simulation results validate the approach is efficient. |
| format | Article |
| id | doaj-art-a55f3a0dad784e7ea86243ad07fdf5c9 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2012-11-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-a55f3a0dad784e7ea86243ad07fdf5c92025-01-14T06:34:21ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2012-11-0133607059669599Delay-optimal spectrum decision method for cognitive networkWu-jian SUNNa LIYang LIULe SUNTao CHENHao LIOu LISpectrum decision was investigated within the confine of spectrum management framework for cognitive radio networks.Sensing errors in PHY layer,outage probability on wireless channel and multiple interruptions of primary user were taken into consideration.Probability-based and sensing-based spectrum decision methods were proposed,which were capable of balancing traffic evenly among licensed.For the probability-based method,short-time first discipline was employed to further shorten average residual time,closed-formed expression were presented based on dynamical programing.For the sensing based method,new channel could be chosen for uncompleted transmission,which alleviated the time spent in waiting primary user.Optimal residual time was obtained by choosing the minimal value of the two methods.Furthermore,spectrum heterogeneity was taken into consideration and theoretical analysis was of general sense.Simulation results validate the approach is efficient.http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2012.z2.008/cognitive networksspectrum decisionsensing errorresidual timeshort-time job firstPRP queuing |
| spellingShingle | Wu-jian SUN Na LI Yang LIU Le SUN Tao CHEN Hao LI Ou LI Delay-optimal spectrum decision method for cognitive network Tongxin xuebao cognitive networks spectrum decision sensing error residual time short-time job first PRP queuing |
| title | Delay-optimal spectrum decision method for cognitive network |
| title_full | Delay-optimal spectrum decision method for cognitive network |
| title_fullStr | Delay-optimal spectrum decision method for cognitive network |
| title_full_unstemmed | Delay-optimal spectrum decision method for cognitive network |
| title_short | Delay-optimal spectrum decision method for cognitive network |
| title_sort | delay optimal spectrum decision method for cognitive network |
| topic | cognitive networks spectrum decision sensing error residual time short-time job first PRP queuing |
| url | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2012.z2.008/ |
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