认知无线电中考虑机会容量的多业务资源分配

doi:10.3969/j.issn.1001-2400.2018.02.015

西安电子科技大学学报

认知无线电中考虑机会容量的多业务资源分配

黄杰1;曾孝平2;简鑫2;杜得荣2;朱斌2;田蜜2

(1. 国网重庆市电力公司信通分公司，重庆 400022;
2. 重庆大学通信工程学院，重庆 400000)

收稿日期:2017-03-22 出版日期:2018-04-20 发布日期:2018-06-06
作者简介:黄杰(1988-)，男，博士，E-mail: huangjiezzzz@163.com
基金资助:
国家自然科学基金资助项目(91438104，61571069，61501065)；中央高校基本科研业务费专项资金资助项目(106112016CDJXY160001)；重庆市基础科学与前沿技术研究专项资助项目(CSTC2016JCYJA0021)

Resource allocation based on opportunistic capacity for cognitive radio networks with heterogeneous services

HUANG Jie1;ZENG Xiaoping2;JIAN Xin2;DU Derong2;ZHU Bin2;TIAN Mi2

(1. ICT Branch of State Grid Chongqing Electric Power Corp., Chongqing 400022, China;
2. College of Communication Engineering, Chongqing Univ., Chongqing 400000, China)

Received:2017-03-22 Online:2018-04-20 Published:2018-06-06

摘要/Abstract

摘要：

动态网络场景的频谱资源存在时变性，而传统基于静态特性的子载波组分配方式无法保障用户的业务需求．针对此问题，将子载波组的时变可用频谱资源建模成以子载波组中可用子载波数为状态的连续时间半马尔可夫模型，推导出子载波组机会容量的通用表示形式，并基于该模型结合不同用户的多业务需求以最大化系统机会容量为准则，提出了一种基于子载波组机会容量的多业务资源分配算法．仿真结果表明，所提算法在频谱环境变化场景下能有效保障用户多业务的需求．

关键词: 认知无线电, 资源分配, 子载波组, 机会容量

Abstract:

The spectrum resource is time-varied in cognitive radio networks (CRNs) with dynamic spectrum environment, which makes the traditional static chunk-based allocation be of poor performance. To solve this issue, this paper derives an opportunistic capacity model for chunks with time-varied spectrum resources and presents an opportunistic capacity based chunk allocation model for heterogeneous services for CRNs under the time-varied spectrum environment. Simulation results illustrate that the proposed scheme can guarantee the Quality of Service (QoS) requirements of heterogeneous services in the situation with time-varied spectrum resources.

Key words: cognitive radio, spectrum allocation, chunk based allocation, opportunity capacity

黄杰;曾孝平;简鑫;杜得荣;朱斌;田蜜. 认知无线电中考虑机会容量的多业务资源分配[J]. 西安电子科技大学学报, 2018, 45(2): 84-89+96.

HUANG Jie;ZENG Xiaoping;JIAN Xin;DU Derong;ZHU Bin;TIAN Mi. Resource allocation based on opportunistic capacity for cognitive radio networks with heterogeneous services[J]. Journal of Xidian University, 2018, 45(2): 84-89+96.

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认知无线电中考虑机会容量的多业务资源分配

Resource allocation based on opportunistic capacity for cognitive radio networks with heterogeneous services

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