Spectrum Handoff with Channel Sensing Sequencing in Cognitive Radio Network

Xingyu Zhu; Huaibei Zhou; Junyuan Huang

doi:10.3969/j.issn.1000-0801.2013.04.011

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Spectrum Handoff with Channel Sensing Sequencing in Cognitive Radio Network

research and development | 更新时间：2024-06-05

- Spectrum Handoff with Channel Sensing Sequencing in Cognitive Radio Network
- Telecommunication Science Vol. 29, Issue 4, Pages: 51-56(2013)
- 作者机构：
  
  1. 武汉大学物理科学与技术学院武汉 430072
  2. 武汉大学国际软件学院武汉 430072
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1000-0801.2013.04.011
  CLC：
- Published Online：2013-04，
  
  Published：20 April 2013
- 稿件说明：
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Xingyu Zhu, Huaibei Zhou, Junyuan Huang. Spectrum Handoff with Channel Sensing Sequencing in Cognitive Radio Network[J]. Telecommunication science, 2013, 29(4): 51-56.
DOI：

Xingyu Zhu, Huaibei Zhou, Junyuan Huang. Spectrum Handoff with Channel Sensing Sequencing in Cognitive Radio Network[J]. Telecommunication science, 2013, 29(4): 51-56. DOI： 10.3969/j.issn.1000-0801.2013.04.011.

摘要

在认知无线网络中，一旦主用户出现，正在使用该频段的认知用户需退出该频段，寻找另外一个空闲的频段继续未完成的传输，这就是认知无线网络中的频谱切换。评价认知用户频谱切换性能有两个重要的参数：切换时延和切换次数。本文提出了一种基于信道感知排序的频谱切换方法，以同时减少切换时延和切换次数。在进行信道感知排序时，本文使用的方法同时考虑了切换发生时信道空闲概率以及使用该信道时不再发生切换的概率。仿真结果表明，与传统信道排序方法相比，本方法的切换时延可以达到与传统方法一样的性能，然而切换次数却大大地减少了。

Abstract

In the cognitive radio network，when the primary users show up，the secondary users should vacate the channel and find another free channel for data transmissions.This is the so-called spectrum handoff.There are two most important performance metrics for spectrum handoff：handoff delay and handoff times.A novel spectrum handoff scheme with channel sensing sequencing was proposed in order to decrease both handoff delay and handoff times.When designing the channel sensing sequence，the channel free probability was considered，and the probability that no handoff will happen in a channel was considered as well.The simulation results show that the method not only can get the minimum handoff delay as the traditional method does，but also can decrease the handoff times were significantly compared with the traditional method.

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references

Akyildiz F ， Vuran M C ， Mohanty S . A survey on spectrum management in cognitive radio networks . IEEE Communications Magazine ， 2008 ， 46 （ 4 ）： 40 ～ 48

Yuan G ， Grammenos R ， Yang Y . Performance analysis of selective opportunistic spectrum access with traffic prediction . IEEE Transactions on Vehicular Technology ， 2010 ， 59 （ 4 ）： 1949 ～ 1959

Shin K G . Efficient discovery of spectrum opportunities with mac-layer sensing in cognitive radio networks . IEEE Transactions on Mobile Computing ， 2008 ， 7 （ 5 ）： 533 ～ 545

Kim H ， Shin K G . Fast discovery of spectrum opportunities in cognitive radio networks . Proceedings of 2008 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks ， Chicago，Illinois，USA ， 2008 ： 1 ～ 12

Qiao X ， Tan Z ， Ai B ， et al . Spectrum handoff for cognitive radio systems based on prediction considering cross-layer optimization . IEICE Transactions on Communications ， 2010 ， E93-B （ 12 ）： 3274 ～ 3283

Hoyhtya M ， Pollin S ， Mammela A . Performance improvement with predictive channel selection for cognitive radios . Proceedings of 2008 First International Workshop on Cognitive Radio and Advanced Spectrum Management ， Aalborg，Denmark ， 2008 ： 1 ～ 5

Chen Y S ， Cho C H ， You I ， et al . A cross-layer protocol of spectrum mobility and handover in cognitive LTE networks . Simulation Modelling Practice and Theory ， 2010 ， 19 （ 8 ）： 1723 ～ 1744

Ma R T ， Hsu Y P ， Feng K T . A POMDP-based spectrum handoff protocol for partially observable cognitive radio networks . Proceedings of 2009 IEEE Wireless Communications and Networking Conference ， Budapest，Hungary ， 2009 ： 1 ～ 6

Zhao Q ， Geirhofer S ， Tong L ， et al . Opportunistic spectrum access via periodic channel sensing . IEEE Transactions on Signal Processing ， 2008 ， 56 （ 2 ）： 785 ～ 796

Perez-Romero J ， Sallent O ， Agusti R ， et al . A novel on-demand cognitive pilot channel enabling dynamic spectrum allocation . Proceedings of 2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks ， Dublin，Ireland ， 2007 ： 46 ～ 54

Huang H ， Zhang Z ， Cheng P ， et al . Opportunistic spectrum access in cognitive radio system employing cooperative spectrum sensing . Proceedings of VTC Spring 2009-IEEE 69th Vehicular Technology Conference ， Barcelona，Spain ， 2009 ： 1 ～ 5

Jo O ， Choi H H ， Cho D H . Seamless spectrum handover improving cell outage in cognitive radio systems . Proceedings of 2009 4th International Conference on Cognitive Radio Oriented Wireless Networks and Communications ， Hannover，Germany ， 2009 ： 1 ～ 6

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