基于QoS保证的多种频谱资源联合分配算法

doi:10.11959/j.issn.1000-0801.2016007

电信科学 ›› 2016, Vol. 32 ›› Issue (1): 46-53.doi: 10.11959/j.issn.1000-0801.2016007

基于QoS保证的多种频谱资源联合分配算法

刘玲¹,鲜永菊²,朱佳²

¹ 重庆交通大学信息科学与工程学院，重庆400074
² 重庆邮电大学通信与信息工程学院，重庆400065

出版日期:2016-01-20 发布日期:2017-06-23
基金资助:
重庆市科委自然科学基金资助项目;重庆市教委资助项目;重庆市教委资助项目;重庆邮电大学资助项目;重庆邮电大学资助项目;大学生科研训练计划基金资助项目

Multi-type spectrum resources joint distribution algorithm based on guaranteed QoS

Ling LIU¹,Yongju XIAN²,Jia ZHU²

¹ College of Information Science and Engineering,Chongqing Jiaotong University,Chongqing 400074,China
² School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China

Online:2016-01-20 Published:2017-06-23
Supported by:
The Natural Science Foundation of Chongqing State Scientific and Technology Commission;Project of Chongqing Municipal Education Commission;Project of Chongqing Municipal Education Commission;Chongqing University of Posts and Telecommunications Fund;Chongqing University of Posts and Telecommunications Fund;Research Training Program Project for High School Students

摘要/Abstract

摘要：

提出了基于静态、半静态和动态频谱资源共性特征指标的频谱可用性定义方法，并借鉴改进的最大加权时延优先（modified largest weight delay first,M-LWDF）算法的QoS需求定义方法，定义了用户的业务需求指标。在此基础上，提出了结合频谱可用性和用户业务需求的频谱分配方法和二次分配方法，其核心思想是将用户需求和频谱资源的可用性按照一定的方式量化，再采用简单的按大小一一对应的方式进行分配。与随机分配方案、先静后动的频谱分配方案的仿真对比表明，本方案在平均失败次数、平均总速率等性能方面具有明显的改善。

关键词: 无线电频谱, 频谱可用性, 频谱分配, 业务需求, MAX算法

Abstract:

The definition of the spectrum availability in terms of static spectrum,semi-static spectrum and dynamic spectrum and the definition of service requirement index based on M-LWDF QoS definition were proposed.A spectrum allocation method and a redistribution method combined with spectrum availability and subscriber requirement were presented.The main idea of the method is that subscriber requirement and availability of spectrum resource are quantified,and then spectrum resources are allocated to subscribers by a one-to-one mapping based on their quantified values in the same sequence.Compared with the random distribution scheme and the dynamic scheme following static allocation,simulation results show that the scheme presented can obviously improve system performance in average number of failure distribution and average total data rate.

Key words: radio spectrum, spectrum availability, spectrum allocation, service requirement, MAX algorithm

刘玲,鲜永菊,朱佳. 基于QoS保证的多种频谱资源联合分配算法[J]. 电信科学, 2016, 32(1): 46-53.

Ling LIU,Yongju XIAN,Jia ZHU. Multi-type spectrum resources joint distribution algorithm based on guaranteed QoS[J]. Telecommunications Science, 2016, 32(1): 46-53.

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参考文献 13

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参数	具体设置
可用信道数K	70（10静态、20竞拍、40动态）
信道基本带宽/kHz	180
业务需求用户数/个	55
信道模型	瑞利衰落信道
信噪比SNR	静态与竞拍取[0,40]的随机数，动态取[0,30]的随机数
主用户到达概率	静态和竞拍为0，动态取[0,1]的随机数
频谱的价格参数	根据本文所提价格公式进行求取
用户业务参数（语音）	15个用户，时延T_m=85 ms,，分组丢失率δ=10^-4，速率需求R_i=64 kbit/s
用户业务参数（数据）	40个用户，时延T_m=180 ms，分组丢失率δ=10^-9，设不同用户数据速率需求R_i服从100～1 300 kbit/s的高斯分布
频谱可用性调节因子	α=3,β=3,γ=1
统计分配次数	40

基于QoS保证的多种频谱资源联合分配算法

Multi-type spectrum resources joint distribution algorithm based on guaranteed QoS

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