Improving achievable traffic load of cognitive wireless networks under GoS constraints
To improve the achievable traffic load of secondary user(SU) under grade of service (GoS) constraints in cognitive wireless networks with heterogeneous traffic,a novel spectrum sharing scheme was proposed.The key idea of the proposed scheme was to introduce preemptive priority and buffering mechanis...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
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.2012.11.004/ |
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| Summary: | To improve the achievable traffic load of secondary user(SU) under grade of service (GoS) constraints in cognitive wireless networks with heterogeneous traffic,a novel spectrum sharing scheme was proposed.The key idea of the proposed scheme was to introduce preemptive priority and buffering mechanism for real-time traffic and non-real-time traffic,respectively,according to their different delay characteristics.The proposed scheme could reduce the forced termination probability and the blocking probability for heterogeneous calls simultaneously.Numerical results show that the proposed scheme can effectively improve the achievable traffic load of SUs under GoS constraints. |
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| ISSN: | 1000-436X |