移动多跳网络中的动态自适应能效建模

发布时间：2018-05-27 22:03

本文选题：移动多跳网络 + 信噪比　；参考：《东北大学》2014年硕士论文

【摘要】：随着信息通信技术的飞速发展,移动多跳无线网络已经成为无线通信中的一种重要通信方式,其重要性随着现今研究的深入得到越来越多的重视。近年来,移动多跳无线网络中的流量呈指数持续增长,随之带来的结果是网络设备的能耗惊人的递增,根据最新相关的统计数据表明,通信业每年消耗的电能达两百多亿度以上,耗电总量在各行业中排名呈现持续上升的趋势,且其中能耗的一半以上来自于移动多跳无线网络的能量消耗。因此,研究如何大幅度提高移动多跳无线网络能效的传输技术与理论,已经成为了当前无线通信领域里的前沿课题。然而目前针对移动多跳无线通信网络环境的研究,还没有统一的能效度量标准和能效模型,本文通过分析无线通信的能耗模型,然后考虑其在传输过程中存在一定的误码率这一特性,提出了相应的能效度量标准和能效模型,以及相应的能效路由算法。首先,本文研究了无线通信能耗的基本模型,并考虑了传输过程中存在误码率这一特性,提出了静态条件下多跳无线网络的能效度量和能效模型,进而最后提出了本文的能效路由算法。近年来,研究高能效的路由算法,是解决目前无线通信传输高能耗、低效率的重要手段之一。很多学者已经对此进行了大量深入细致的研究,并提出了相应不同的能效度量标准,然而很多设计模型考虑却并不够细致,仅仅考虑了能量消耗一个方面的代价,并没有充分考虑其路由的传输时延及其传输的总距离等代价参量,同时也没有考虑误码传输的实际情况,从而导致能效模型不能更好的体现出网络的性能及其路由算法的有效性,本文仔细考虑了传输过程中路由上传输时延及其传输的总距离等因素,提出了基于误码率的绿色能效度量模型,然后在此基础上提出了基于能耗均衡的能效路由算法,仿真结果表明,本文所提的能效度量模型能进一步真实的反映出网络性能及节点的传输效率,同时本文所提的能效路由算法能够明显的提高网络的能效性能。其次,针对移动多跳无线网络中节点和链路具有动态性和随机性等变化特性,其结果造成网络的能耗过高以及节点传输的效率过低的这一问题。本文通过分析无线通信的信道容量模型,传输速率与信噪比的关系,进而得到其与发射功率的联系,再结合传输时存在误码率这一特性,提出了基于网络节点和链路动态变化以及传输存在误码率的条件下的绿色能效度量模型,在此模型基础上,结合传输的实际情况,通过考虑路由上的传输时延以及能耗,提出了基于最小时延能量积的能效路由算法,仿真结果表明,本文提出的绿色能效度量模型能更加符合实际的动态情形,更好体现出网络性能及节点的传输效率,同时提出的能效路由算法能够明显的提高网络的能效性能。
[Abstract]:With the rapid development of information and communication technology, mobile multi-hop wireless network has become an important communication mode in wireless communication. In recent years, the traffic in mobile multi-hop wireless network has been increasing exponentially, and the result is that the energy consumption of network equipment is increasing dramatically, according to the latest relevant statistics, The electric energy consumed by the communication industry is more than 20 billion degrees each year, and the total power consumption in each industry shows a rising trend, and more than half of the energy consumption comes from the energy consumption of the mobile multi-hop wireless network. Therefore, the research on the transmission technology and theory of how to improve the efficiency of mobile multi-hop wireless networks has become a frontier topic in the field of wireless communication. However, there is no unified energy efficiency measurement standard and energy efficiency model for mobile multi-hop wireless communication network environment. This paper analyzes the energy consumption model of wireless communication. Then, considering that there is a certain bit error rate in the transmission process, the energy efficiency metric, energy efficiency model and the corresponding energy efficiency routing algorithm are proposed. Firstly, this paper studies the basic model of wireless communication energy consumption, and considers the characteristic of bit error rate (BER) in the transmission process, and puts forward the energy efficiency measurement and energy efficiency model of multi-hop wireless network under static condition. Finally, the energy efficiency routing algorithm is proposed. In recent years, the research of efficient routing algorithm is one of the most important methods to solve the problem of high energy consumption and low efficiency in wireless communication. Many scholars have done a lot of intensive research and put forward different energy efficiency metrics. However, many design models are not careful enough to consider the cost of energy consumption. The cost parameters such as the transmission delay and the total distance of the route are not fully considered, and the actual situation of the error transmission is not taken into account. As a result, the energy efficiency model can not better reflect the performance of the network and the effectiveness of the routing algorithm. In this paper, the factors such as the transmission delay and the total distance on the route are carefully considered. A green energy efficiency metric model based on bit error rate (BER) is proposed, and then an energy efficiency routing algorithm based on energy balance is proposed. The simulation results show that, The energy efficiency metric model proposed in this paper can further reflect the network performance and the transmission efficiency of nodes, and the energy efficiency routing algorithm proposed in this paper can significantly improve the energy efficiency performance of the network. Secondly, the dynamic and random characteristics of nodes and links in mobile multi-hop wireless networks are discussed, which results in the high energy consumption and low transmission efficiency of nodes in mobile multi-hop wireless networks. By analyzing the channel capacity model of wireless communication and the relation between transmission rate and signal-to-noise ratio, the relationship between transmission power and transmission rate is obtained in this paper. A green energy efficiency measurement model based on the dynamic changes of network nodes and links and the presence of bit error rate (BER) in transmission is proposed. Based on this model, considering the transmission delay and energy consumption in routing, combined with the actual situation of transmission, An energy efficiency routing algorithm based on minimum delay energy product is proposed. The simulation results show that the proposed green energy efficiency metric model is more suitable to the actual dynamic situation and better reflects the network performance and the transmission efficiency of nodes. At the same time, the proposed energy efficiency routing algorithm can significantly improve the energy efficiency performance of the network.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.5

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