A contract-based cooperative spectrum sharing model in cognitive radio network

Guangqiang SHI; Ying LIU; Xiaomin MU

doi:10.11959/j.issn.1000-0801.20161

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A contract-based cooperative spectrum sharing model in cognitive radio network

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

- A contract-based cooperative spectrum sharing model in cognitive radio network
- Observation and communication Vol. 32, Issue 5, Pages: 83-88(2016)
- 作者机构：
- 作者简介：
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- DOI：10.11959/j.issn.1000-0801.20161
  CLC： TN92
- Published Online：2016-05，
  
  Published：20 May 2016
- 稿件说明：
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Guangqiang SHI, Ying LIU, Xiaomin MU. A contract-based cooperative spectrum sharing model in cognitive radio network[J]. Observation and communication, 2016, 32(5): 83-88.
DOI：

Guangqiang SHI, Ying LIU, Xiaomin MU. A contract-based cooperative spectrum sharing model in cognitive radio network[J]. Observation and communication, 2016, 32(5): 83-88. DOI： 10.11959/j.issn.1000-0801.20161.

摘要

为了提高认知无线电网络中主用户的能效和谱效，提出了一种基于合约制的协作频谱共享新模型。在该模型中，当主用户信道质量差时，次用户为其提供中继服务；作为回报，在主用户信道质量好时，次用户可以在一定的干扰约束下以underlay的模式和主用户共享频谱。在此框架下引入经济学中的合约理论，将主次用户间的协作问题建模为合约设计问题，并建立了主次用户评价合约收益的效用函数，将提高主用户的能效和谱效问题转变为设计合约使主用户获得最大效用的优化问题，并利用差分进化算法对该问题求解。最后，在不同的环境下，将主用户协作与不协作获得的效用进行对比，结果表明，主用户在没有额外投入频谱资源的条件下，不仅节省了发送功率，而且有效地提高了数据传输速率，进而提高了能效和谱效。

Abstract

A contract-based cooperative spectrum sharing model in cognitive radio network was proposed.In this model

secondary user offers relay service for primary user when primary user's channel is poor.In return

when primary user's channel is good

secondary user can use spectrum with the underlay mode under the condition that the interference is limited.Contract theory in economics was introduced to this framework

the problem of collaboration between the primary and secondary users was modeled as a contract design problem

and the effectiveness function of evaluate primary and secondary users on contract revenue was set up.And the differential evolution algorithm was used to solve the problem.Finally

in different circumstances

primary user collaboration and un-collaboration were contrasted.The results showed that the main users under the condition of no additional input spectrum

not only save the sending power

but also effectively improve the data transfer rate

and improve the energy efficiency and spectrum efficiency.

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references

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