本文主要研究内容
作者孙耀华（2019）在《雾无线接入网络中基于博弈理论的资源分配方法》一文中研究指出：面对未来无线网络更高和更多样化的性能需求,雾无线接入网近来受到业界广泛关注。为充分发挥雾无线接入网的性能潜力,资源分配至关重要。相对传统资源分配方法,基于博弈理论的资源分配更加高效,是目前学术界的热门研究方向。基于此,为克服雾无线接入网资源分配面临的计算压力大、需全局信息的问题,本论文提出了基于博弈理论的资源分配方法。首先在上行场景中,对终端的基于非合作博弈的通信模式选择和无线资源分配进行了深入研究;然后在雾无线接入网切片场景中,对接入网切片的基于分层博弈的无线资源分配进行了深入研究;最后考虑动态雾无线接入网,对基于复合博弈的无线和缓存资源联合分配进行了深入研究。论文的主要研究内容和创新点如下:1.基于非合作博弈的终端模式选择和无线资源分配考虑到集中式终端通信模式选择和子信道分配的联合优化可能导致云端较大计算压力,本文基于非合作博弈,提出利用终端的资源管理能力使其分布式地进行通信模式和子信道选择。首先,考虑到终端可平等共享子信道资源,故利用非合作博弈对终端的通信模式和子信道选择行为进行建模;然后在给定终端与远端射频单元关联及终端功控机制下,提出了基于多代理强化学习的模式选择和子信道分配博弈算法;为低复杂度地进行关联和功控,提出了基于匹配理论的关联及基于分层博弈的终端功控算法;最后对所提所有算法的特性进行了详细讨论,包括收敛性、稳定性等,其中证明了基于强化学习的博弈算法收敛且收敛结果趋近终端间非合作博弈的均衡解。仿真结果表明模式选择和子信道分配算法收敛,且在合适的参数选择下,接近穷举搜索得到的最优性能,而在大规模场景下,性能优于另一种分布式算法。该研究为未来利用终端设备进行分布式资源管理提供了潜在思路,是对雾无线接入网思想的具体实践。2.基于分层博弈的面向雾无线接入网切片的无线资源分配针对雾无线接入网切片场景中集中式资源分配计算压力大、需获取全局信息、切片定制化难以实现的问题,研究了基于分层博弈的面向雾无线接入网切片的无线资源分配。首先在包含一个全局资源管理器和多个切片内资源管理器的架构下,切片资源分配问题建模为全局资源管理器和切片内资源管理器间的分层博弈,并定义了博弈均衡解,讨论了均衡解的存在性和唯一性;接着,考虑到各切片内资源管理器的优化问题NP难解且全局资源管理器策略离散,在资源管理器绝对理性的前提下,设计了利用穷举搜索的分布式资源分配算法得到博弈均衡解;最后,为避免穷举搜索的高复杂度,为每个资源管理器设计了可达到局部最优解的资源分配算法,此时系统可实现弱化的均衡态。仿真结果表明,切片间的性能存在权衡,所提局部最优资源分配算法性能接近最优性能,且显著优于其它对比方案。该研究对雾无线接入网切片场景下差异化切片性能保障具有重要意义,同时,所提切片间资源分配算法可直接扩展到多种资源的联合调配。3.基于复合博弈的无线缓存资源联合分配当雾无线接入网中无线和缓存资源分配互相影响时,为达到更优的整体性能,需进行二者联合优化。考虑到无线资源分配和缓存资源分配在不同时间尺度进行且依赖不同信息,为减轻云端资源管理器的压力,二者联合分配问题建模为包含资源管理器和雾接入点的复合博弈,在博弈上层,资源管理器通过缓存资源分配最大化长期吞吐量带来的收益和缓存成本之差,而在下层,雾接入点的无线资源分配行为建模为一个联盟博弈,目标为最大化短期吞吐量;为求解均衡解,首先设计了分布式的、可达到稳定分簇结果的联盟博弈算法,接着针对资源管理器优化目标无闭式表达式且优化变量离散的问题,提出了基于单代理和多代理强化学习的缓存资源优化算法,研究了收敛性和最优性,其中后者可有效克服维数灾难问题。仿真表明,与雾接入点无协作相比,所提联盟形成算法可使雾接入点利用边缘缓存有效提升系统吞吐量,此外,基于多代理强化学习的缓存算法显著优于其它对比方案。本节所提方法对雾无线接入网中其它混合时间尺度的资源分配问题具有一定指导意义。
Abstract
mian dui wei lai mo xian wang lao geng gao he geng duo yang hua de xing neng xu qiu ,wu mo xian jie ru wang jin lai shou dao ye jie an fan guan zhu 。wei chong fen fa hui wu mo xian jie ru wang de xing neng qian li ,zi yuan fen pei zhi guan chong yao 。xiang dui chuan tong zi yuan fen pei fang fa ,ji yu bo yi li lun de zi yuan fen pei geng jia gao xiao ,shi mu qian xue shu jie de re men yan jiu fang xiang 。ji yu ci ,wei ke fu wu mo xian jie ru wang zi yuan fen pei mian lin de ji suan ya li da 、xu quan ju xin xi de wen ti ,ben lun wen di chu le ji yu bo yi li lun de zi yuan fen pei fang fa 。shou xian zai shang hang chang jing zhong ,dui zhong duan de ji yu fei ge zuo bo yi de tong xin mo shi shua ze he mo xian zi yuan fen pei jin hang le shen ru yan jiu ;ran hou zai wu mo xian jie ru wang qie pian chang jing zhong ,dui jie ru wang qie pian de ji yu fen ceng bo yi de mo xian zi yuan fen pei jin hang le shen ru yan jiu ;zui hou kao lv dong tai wu mo xian jie ru wang ,dui ji yu fu ge bo yi de mo xian he huan cun zi yuan lian ge fen pei jin hang le shen ru yan jiu 。lun wen de zhu yao yan jiu nei rong he chuang xin dian ru xia :1.ji yu fei ge zuo bo yi de zhong duan mo shi shua ze he mo xian zi yuan fen pei kao lv dao ji zhong shi zhong duan tong xin mo shi shua ze he zi xin dao fen pei de lian ge you hua ke neng dao zhi yun duan jiao da ji suan ya li ,ben wen ji yu fei ge zuo bo yi ,di chu li yong zhong duan de zi yuan guan li neng li shi ji fen bu shi de jin hang tong xin mo shi he zi xin dao shua ze 。shou xian ,kao lv dao zhong duan ke ping deng gong xiang zi xin dao zi yuan ,gu li yong fei ge zuo bo yi dui zhong duan de tong xin mo shi he zi xin dao shua ze hang wei jin hang jian mo ;ran hou zai gei ding zhong duan yu yuan duan she pin chan yuan guan lian ji zhong duan gong kong ji zhi xia ,di chu le ji yu duo dai li jiang hua xue xi de mo shi shua ze he zi xin dao fen pei bo yi suan fa ;wei di fu za du de jin hang guan lian he gong kong ,di chu le ji yu pi pei li lun de guan lian ji ji yu fen ceng bo yi de zhong duan gong kong suan fa ;zui hou dui suo di suo you suan fa de te xing jin hang le xiang xi tao lun ,bao gua shou lian xing 、wen ding xing deng ,ji zhong zheng ming le ji yu jiang hua xue xi de bo yi suan fa shou lian ju shou lian jie guo qu jin zhong duan jian fei ge zuo bo yi de jun heng jie 。fang zhen jie guo biao ming mo shi shua ze he zi xin dao fen pei suan fa shou lian ,ju zai ge kuo de can shu shua ze xia ,jie jin qiong ju sou suo de dao de zui you xing neng ,er zai da gui mo chang jing xia ,xing neng you yu ling yi chong fen bu shi suan fa 。gai yan jiu wei wei lai li yong zhong duan she bei jin hang fen bu shi zi yuan guan li di gong le qian zai sai lu ,shi dui wu mo xian jie ru wang sai xiang de ju ti shi jian 。2.ji yu fen ceng bo yi de mian xiang wu mo xian jie ru wang qie pian de mo xian zi yuan fen pei zhen dui wu mo xian jie ru wang qie pian chang jing zhong ji zhong shi zi yuan fen pei ji suan ya li da 、xu huo qu quan ju xin xi 、qie pian ding zhi hua nan yi shi xian de wen ti ,yan jiu le ji yu fen ceng bo yi de mian xiang wu mo xian jie ru wang qie pian de mo xian zi yuan fen pei 。shou xian zai bao han yi ge quan ju zi yuan guan li qi he duo ge qie pian nei zi yuan guan li qi de jia gou xia ,qie pian zi yuan fen pei wen ti jian mo wei quan ju zi yuan guan li qi he qie pian nei zi yuan guan li qi jian de fen ceng bo yi ,bing ding yi le bo yi jun heng jie ,tao lun le jun heng jie de cun zai xing he wei yi xing ;jie zhao ,kao lv dao ge qie pian nei zi yuan guan li qi de you hua wen ti NPnan jie ju quan ju zi yuan guan li qi ce lve li san ,zai zi yuan guan li qi jue dui li xing de qian di xia ,she ji le li yong qiong ju sou suo de fen bu shi zi yuan fen pei suan fa de dao bo yi jun heng jie ;zui hou ,wei bi mian qiong ju sou suo de gao fu za du ,wei mei ge zi yuan guan li qi she ji le ke da dao ju bu zui you jie de zi yuan fen pei suan fa ,ci shi ji tong ke shi xian ruo hua de jun heng tai 。fang zhen jie guo biao ming ,qie pian jian de xing neng cun zai quan heng ,suo di ju bu zui you zi yuan fen pei suan fa xing neng jie jin zui you xing neng ,ju xian zhe you yu ji ta dui bi fang an 。gai yan jiu dui wu mo xian jie ru wang qie pian chang jing xia cha yi hua qie pian xing neng bao zhang ju you chong yao yi yi ,tong shi ,suo di qie pian jian zi yuan fen pei suan fa ke zhi jie kuo zhan dao duo chong zi yuan de lian ge diao pei 。3.ji yu fu ge bo yi de mo xian huan cun zi yuan lian ge fen pei dang wu mo xian jie ru wang zhong mo xian he huan cun zi yuan fen pei hu xiang ying xiang shi ,wei da dao geng you de zheng ti xing neng ,xu jin hang er zhe lian ge you hua 。kao lv dao mo xian zi yuan fen pei he huan cun zi yuan fen pei zai bu tong shi jian che du jin hang ju yi lai bu tong xin xi ,wei jian qing yun duan zi yuan guan li qi de ya li ,er zhe lian ge fen pei wen ti jian mo wei bao han zi yuan guan li qi he wu jie ru dian de fu ge bo yi ,zai bo yi shang ceng ,zi yuan guan li qi tong guo huan cun zi yuan fen pei zui da hua chang ji tun tu liang dai lai de shou yi he huan cun cheng ben zhi cha ,er zai xia ceng ,wu jie ru dian de mo xian zi yuan fen pei hang wei jian mo wei yi ge lian meng bo yi ,mu biao wei zui da hua duan ji tun tu liang ;wei qiu jie jun heng jie ,shou xian she ji le fen bu shi de 、ke da dao wen ding fen cu jie guo de lian meng bo yi suan fa ,jie zhao zhen dui zi yuan guan li qi you hua mu biao mo bi shi biao da shi ju you hua bian liang li san de wen ti ,di chu le ji yu chan dai li he duo dai li jiang hua xue xi de huan cun zi yuan you hua suan fa ,yan jiu le shou lian xing he zui you xing ,ji zhong hou zhe ke you xiao ke fu wei shu zai nan wen ti 。fang zhen biao ming ,yu wu jie ru dian mo xie zuo xiang bi ,suo di lian meng xing cheng suan fa ke shi wu jie ru dian li yong bian yuan huan cun you xiao di sheng ji tong tun tu liang ,ci wai ,ji yu duo dai li jiang hua xue xi de huan cun suan fa xian zhe you yu ji ta dui bi fang an 。ben jie suo di fang fa dui wu mo xian jie ru wang zhong ji ta hun ge shi jian che du de zi yuan fen pei wen ti ju you yi ding zhi dao yi yi 。
论文参考文献
论文详细介绍
论文作者分别是来自北京邮电大学的孙耀华，发表于刊物北京邮电大学2019-07-16论文，是一篇关于雾无线接入网论文,博弈论论文,资源分配论文,强化学习论文,北京邮电大学2019-07-16论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自北京邮电大学2019-07-16论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：雾无线接入网论文; 博弈论论文; 资源分配论文; 强化学习论文; 北京邮电大学2019-07-16论文;