基于能量效率的资源管理方案优化研究

发布时间：2018-04-19 23:27

本文选题：能量效率 + 资源分配　；参考：《哈尔滨工业大学》2017年硕士论文

【摘要】：科技不断发展,人们对于通信有了更高的要求。之前包括现在有很多学者和机构致力于研究如何进一步提升通信系统的容量。而且未来的通信网将会有500亿的设备互联,通信容量将会是目前网络所能提供的1000倍,如果单纯地依靠耗用更多的能量来支持如此庞大的通信量,无疑将会付出不可想象的成本代价以及环境污染。因此,无论是学术界还是产业界,都在研究如何在与目前网络消耗能量相差无几的情况下,将系统的容量提高到近1000倍,也就是说研究如何将系统中的能量效率提高到传统系统的1000倍[2]。因此,能量效率成为了下一代无线通信的关键词。在多小区通信系统中,Co MP与MIMO技术的结合可以很好地解决小区边缘用户通信干扰大、吞吐量低的问题,因此本文对这两种技术展开相关研究和对比分析,选择合适的模式来为整个系统的资源管理提供更好的服务,以支持不同用户的业务需求,达到优化系统中能量效率和频谱效率的目的。首先,本文对蜂窝小区中下行通信链路的相关流程进行介绍,在此基础上,研究了相关的关键技术,分析了3种Co MP模式以及4种线性波束赋形方案,最后选定CS/CB以及SLNR作为本文的方案。介绍了传统的资源管理方案以及Qo S的相关定义。然后,对系统中的能量效率展开研究,基于3小区的通信场景,建立了满足用户数据速率需求的资源分配和功率分配数学模型,然后设计迭代算法进行求解,并进行仿真和对比分析。最后,分析系统中能量效率和频谱效率的关系,以加权的能量效率和频谱效率和为目标函数进行资源分配和功率分配,并考虑不同用户的速率需求以及时延限制,进一步分析系统参数对于这两个指标的影响,说明不同系统需求下如何选择合适的参数以更好地满足不同用户的需求,同时也对系统中用户的GBR满意度以及丢包率性能进行了分析。
[Abstract]:Technology continues to develop, and people have a higher demand for communications. There are many scholars and institutions that are now working to study how to further enhance the capacity of the communication system. And the future communication network will have 50 billion devices interconnected, and the communication capacity will be 1000 times the current network can provide, if only rely on consumption. More energy to support such a huge amount of communication will undoubtedly pay unimaginable cost and environmental pollution. Therefore, both academia and industry are studying how to increase the capacity of the system to nearly 1000 times that of current network consumption, that is, how to study the system The energy efficiency in the traditional system is 1000 times [2]., so the energy efficiency has become the key word for the next generation of wireless communication. In the multi cell communication system, the combination of Co MP and MIMO technology can solve the problem of large communication interference and low throughput of the cell edge users. Therefore, this paper carries out the related research on these two technologies and Comparative analysis, select the appropriate mode to provide better service for the whole system resource management, to support the business needs of different users, to optimize the energy efficiency and spectrum efficiency in the system. First, this paper introduces the related flow of the downlink communication link in the cellular cell, and on this basis, the relevant customs are studied. Key technology, 3 Co MP modes and 4 linear beam forming schemes are analyzed. Finally, CS/CB and SLNR are selected as the scheme. The traditional resource management scheme and the related definition of Qo S are introduced. Then, the energy efficiency of the system is studied. Based on the communication scene of the 3 cell, the user data rate requirement is set up. The mathematical model of resource allocation and power allocation is designed, then the iterative algorithm is designed to be solved, and the simulation and contrast analysis are carried out. Finally, the relationship between the energy efficiency and the spectrum efficiency is analyzed. The energy efficiency and spectral efficiency are weighted and the resource allocation and power allocation are used for the target function, and the rate requirements of different users are taken into consideration. The effect of system parameters on these two indexes is analyzed in time, and how to choose appropriate parameters to better meet the needs of different users is explained under different system requirements. At the same time, the GBR satisfaction and packet loss rate performance of the users are also analyzed.

【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.5

【参考文献】