60GHz毫米波无线局域网的组网架构研究
发布时间：2018-11-02 19:08
【摘要】：伴随多媒体应用的发展,无线低频频段资源已无法满足在传输速率和信号带宽方面不断增加的需求。这几年来,各国相继开放了60GHz频率附近大于5GHz频宽的免许可频带,使实现Gbit/s级速率的60GHz超高速无线通信系统传输受到学术界和工业界的广泛关注。随着各种研究的不断深入以及IEEE 802.11ad等相关协议标准的制定,60GHz毫米波通信成为了未来无线通信的热点方向。60GHz无线通信有传统低频段通信不具备的抗干扰性、高安全性、高传输速率和高带宽等优点。但由于其毫米波频段的物理特性,又具有传输损耗大、易被遮挡、方向性强等特点,造成60GHz毫米波组网的研究面临不小的问题和挑战。因而,如何建立一个高效、可靠的60GHz毫米波无线通信网络,仍然是需要探讨和解决的问题。针对于此,本文主要依据60GHz毫米波的特点和研究现状以及当前分层异构网络的相关研究和应用,提出了一种基于分层异构的60GHz毫米波IEEE 802.11无线局域网组网架构,核心是将传统的控制和业务信息在同一网络中传输的同构网络,改变成将控制与业务信息分离的分层异构网络。即将网络分为控制子网和业务子网,分别在5GHz频段和60GHz频段工作,由于传输数据的性质和作用不同,其覆盖的方式和范围、具体参照的IEEE 802.11协议、底层技术都不相同。在实现有机分离的同时,引入了分层异构管理子层的概念,使得两网又能够有机配合。本文对此架构做了详细的描述,并且研究了与实现本架构相关的协议及技术。最后,本文通过OPNET网络仿真工具构建网络场景模型,分别仿真了60GHz分层异构网络与同构网络,仿真结果表明采用分层异构网络模型可以明显改善系统的性能,其更适用于60GHz毫米波的组网,这对今后的60GHz毫米波通信网络领域相关研究提供了一定的参考价值。
[Abstract]:With the development of multimedia applications, wireless low frequency band resources can not meet the increasing demand of transmission rate and signal bandwidth. In recent years, many countries have opened up the passage-free frequency band which is larger than the 5GHz frequency band near the 60GHz frequency, which makes the transmission of 60GHz ultra-high speed wireless communication system with Gbit/s rate widely concerned by academia and industry. With the deepening of various research and the formulation of IEEE 802.11ad and other related protocol standards, 60GHz millimeter wave communication has become the hot direction of future wireless communication. 60GHz wireless communication has anti-interference and high security, which traditional low-frequency communication does not have. High transmission rate and high bandwidth and other advantages. However, due to the physical characteristics of the millimeter wave band, the transmission loss is large, easy to be blocked, strong directionality and so on, so the research of 60GHz millimeter wave network is faced with many problems and challenges. Therefore, how to establish an efficient and reliable 60GHz millimeter wave wireless communication network is still a problem to be discussed and solved. In view of this, according to the characteristic and research status of 60GHz millimeter wave and the related research and application of current layered heterogeneous network, this paper proposes a 60GHz millimeter wave IEEE 802.11 WLAN network architecture based on layered heterogeneity. The core is to change the traditional control and service information transmission in the same network isomorphic network into a hierarchical heterogeneous network which separates control and service information. The network is divided into control subnet and service subnet, which work in 5GHz band and 60GHz band respectively. Because of the different nature and function of transmitting data, the way and scope of its coverage and the specific reference IEEE 802.11 protocol, the underlying technology are different. At the same time, the concept of hierarchical and heterogeneous management sub-layer is introduced, which enables the two networks to cooperate organically. This paper describes the architecture in detail, and studies the protocols and technologies related to the implementation of this architecture. Finally, this paper constructs the network scene model by OPNET network simulation tool, and simulates the 60GHz layered heterogeneous network and isomorphic network respectively. The simulation results show that using the layered heterogeneous network model can obviously improve the performance of the system. It is more suitable for the networking of 60GHz millimeter wave, which provides a certain reference value for the related research of 60GHz millimeter wave communication network in the future.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN925.93
本文编号：2306695
[Abstract]:With the development of multimedia applications, wireless low frequency band resources can not meet the increasing demand of transmission rate and signal bandwidth. In recent years, many countries have opened up the passage-free frequency band which is larger than the 5GHz frequency band near the 60GHz frequency, which makes the transmission of 60GHz ultra-high speed wireless communication system with Gbit/s rate widely concerned by academia and industry. With the deepening of various research and the formulation of IEEE 802.11ad and other related protocol standards, 60GHz millimeter wave communication has become the hot direction of future wireless communication. 60GHz wireless communication has anti-interference and high security, which traditional low-frequency communication does not have. High transmission rate and high bandwidth and other advantages. However, due to the physical characteristics of the millimeter wave band, the transmission loss is large, easy to be blocked, strong directionality and so on, so the research of 60GHz millimeter wave network is faced with many problems and challenges. Therefore, how to establish an efficient and reliable 60GHz millimeter wave wireless communication network is still a problem to be discussed and solved. In view of this, according to the characteristic and research status of 60GHz millimeter wave and the related research and application of current layered heterogeneous network, this paper proposes a 60GHz millimeter wave IEEE 802.11 WLAN network architecture based on layered heterogeneity. The core is to change the traditional control and service information transmission in the same network isomorphic network into a hierarchical heterogeneous network which separates control and service information. The network is divided into control subnet and service subnet, which work in 5GHz band and 60GHz band respectively. Because of the different nature and function of transmitting data, the way and scope of its coverage and the specific reference IEEE 802.11 protocol, the underlying technology are different. At the same time, the concept of hierarchical and heterogeneous management sub-layer is introduced, which enables the two networks to cooperate organically. This paper describes the architecture in detail, and studies the protocols and technologies related to the implementation of this architecture. Finally, this paper constructs the network scene model by OPNET network simulation tool, and simulates the 60GHz layered heterogeneous network and isomorphic network respectively. The simulation results show that using the layered heterogeneous network model can obviously improve the performance of the system. It is more suitable for the networking of 60GHz millimeter wave, which provides a certain reference value for the related research of 60GHz millimeter wave communication network in the future.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN925.93
【参考文献】
相关硕士学位论文 前1条
1 李妍;无线局域网MAC层协议研究与改进[D];北京邮电大学;2008年
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