基于能量收集技术的中继协作通信研究
发布时间：2018-11-06 11:51
【摘要】：随着第五代移动通信、智能终端和物联网的发展,爆炸式的通信业务量和微型灵巧化的个人通信设备使通信的能量供应方式带来了新的挑战。因此,未来的无线通信系统可以运用“开源节流”的思想进行设计。我们一方面要考虑通信设备的能耗问题,降低能源消耗,另一方面寻找新型的能量供应方式。协作通信技术能够解决能耗问题,能量收集技术可以提供能量来源,将两者结合,就可以满足未来无线通信设备对能量的要求。针对目前关于两者结合的研究在国内外刚刚起步,且存在诸多问题,因此,本文研究了将协作通信与能量收集中的无线能量传输、携能通信相结合,针对实际通信场景进行建模。本文的工作重点是在协作通信的基础上探究能量收集与传输技术的应用。文章中首先研究将能量收集技术应用于多中继多用户方案,提出放大转发协议的多中继多用户能量收集协作通信模型。相比于传统的协作网络模型,中继没有内嵌的能源供应,收集源端发送的能量协作信息传输。基于此模型,提出两步选择方案,并考虑信道的状态信息和中继电池的状态。推导在该模型下的近似信道容量的封闭表达式,其中电池存储状态分别建模为有限和无限马尔科夫链。然后分析推导两类电池存储状态信道容量的封闭表达式,所有的理论推导通过数值结果的仿真验证,分析各参数对系统产生的影响。最后,在基于三节点的“下行能量传输,上行数据传输”的无线能量传输协作通信网络模型中,对收集协作(Harvest-then-cooperate,HTC)协议进行研究。基站首先通过广播方式向源端和中继节点传输能量,源端利用在下行链路收集的能量发送信息,中继节点利用收集的能量将源端的信号协作转发。考虑延迟有限的传输模式,针对所研究系统的传输中断概率,推导在瑞利信道下的系统平均吞吐量,并与采用收集转发协议的方案吞吐量相对比,仿真结果和理论结果的重合度验证了理论分析的准确性。
[Abstract]:With the development of the fifth generation mobile communication, intelligent terminal and the Internet of things, explosive communication traffic and micro-dexterous personal communication equipment bring new challenges to the energy supply mode of communication. Therefore, the future wireless communication system can be designed by using the idea of "increasing revenue and reducing expenditure". On the one hand, we should consider the energy consumption of communication equipment and reduce the energy consumption, on the other hand, we should look for new energy supply mode. Cooperative communication technology can solve the problem of energy consumption, energy collection technology can provide energy sources, the combination of the two can meet the future wireless communication equipment energy requirements. In view of the fact that the research on the combination of the two is just beginning at home and abroad, and there are many problems, this paper studies the combination of wireless energy transmission and energy collection in cooperative communication and energy collection. Modeling for actual communication scenarios. The emphasis of this paper is to explore the application of energy collection and transmission technology on the basis of cooperative communication. In this paper, we first study the application of energy collection technology to multi-relay and multi-user schemes, and propose a cooperative communication model of multi-relay and multi-user energy collection based on Amplifier forwarding protocol. Compared with the traditional cooperative network model, relay has no embedded energy supply and collects the energy information transmitted from the source side. Based on this model, a two-step selection scheme is proposed, and the state information of the channel and the status of the relaying battery are considered. The closed expression of the approximate channel capacity under this model is derived in which the battery storage state is modeled as finite and infinite Markov chains respectively. Then, the closed expression of channel capacity of two kinds of battery storage state is analyzed and deduced. All the theoretical derivations are verified by the numerical results, and the influence of each parameter on the system is analyzed. Finally, in the wireless energy transmission cooperative communication network model based on the three-node "downlink energy transmission, uplink data transmission", the collection cooperation (Harvest-then-cooperate,HTC) protocol is studied. At first, the base station transmits energy to the source and relay nodes through broadcast mode. The source uses the energy collected in the downlink to send information, and the relay node uses the energy collected to transmit the signals from the source side. Considering the transmission mode with limited delay, the average throughput of the system under Rayleigh channel is derived for the transmission interruption probability of the studied system, and compared with the throughput of the scheme using the collection and forwarding protocol. The accuracy of the theoretical analysis is verified by the coincidence between the simulation results and the theoretical results.
【学位授予单位】：曲阜师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.5
本文编号：2314178
[Abstract]:With the development of the fifth generation mobile communication, intelligent terminal and the Internet of things, explosive communication traffic and micro-dexterous personal communication equipment bring new challenges to the energy supply mode of communication. Therefore, the future wireless communication system can be designed by using the idea of "increasing revenue and reducing expenditure". On the one hand, we should consider the energy consumption of communication equipment and reduce the energy consumption, on the other hand, we should look for new energy supply mode. Cooperative communication technology can solve the problem of energy consumption, energy collection technology can provide energy sources, the combination of the two can meet the future wireless communication equipment energy requirements. In view of the fact that the research on the combination of the two is just beginning at home and abroad, and there are many problems, this paper studies the combination of wireless energy transmission and energy collection in cooperative communication and energy collection. Modeling for actual communication scenarios. The emphasis of this paper is to explore the application of energy collection and transmission technology on the basis of cooperative communication. In this paper, we first study the application of energy collection technology to multi-relay and multi-user schemes, and propose a cooperative communication model of multi-relay and multi-user energy collection based on Amplifier forwarding protocol. Compared with the traditional cooperative network model, relay has no embedded energy supply and collects the energy information transmitted from the source side. Based on this model, a two-step selection scheme is proposed, and the state information of the channel and the status of the relaying battery are considered. The closed expression of the approximate channel capacity under this model is derived in which the battery storage state is modeled as finite and infinite Markov chains respectively. Then, the closed expression of channel capacity of two kinds of battery storage state is analyzed and deduced. All the theoretical derivations are verified by the numerical results, and the influence of each parameter on the system is analyzed. Finally, in the wireless energy transmission cooperative communication network model based on the three-node "downlink energy transmission, uplink data transmission", the collection cooperation (Harvest-then-cooperate,HTC) protocol is studied. At first, the base station transmits energy to the source and relay nodes through broadcast mode. The source uses the energy collected in the downlink to send information, and the relay node uses the energy collected to transmit the signals from the source side. Considering the transmission mode with limited delay, the average throughput of the system under Rayleigh channel is derived for the transmission interruption probability of the studied system, and compared with the throughput of the scheme using the collection and forwarding protocol. The accuracy of the theoretical analysis is verified by the coincidence between the simulation results and the theoretical results.
【学位授予单位】：曲阜师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.5
【参考文献】
相关硕士学位论文 前3条
1 乐人铭;基于协同通信的自适应中继节点选择算法研究[D];云南大学;2016年
2 郑祖翔;基于AMPSK调制的无线携能通信技术研究[D];东南大学;2015年
3 李松林;基于电磁感应耦合的无线电能传输研究[D];电子科技大学;2012年
，本文编号：2314178
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