太赫兹超高速无线网络 MAC 接入协议研究

摘要

Terahertz is a kind of electromagnetic waves which located between millimeter waves and infrared lightwaves.It has large bandwith which not been allocated and can support Gbps or higher wireless data rates. Therefore, terahertz communication technology becomes various countries’ researching hot spot in recent years.This paper first briefly introduces the terahertz ultra-high data-rate wireless networks which based on the standard IEEE 802.15.3c.Then, it describes the architecture and challenges of terahertz ultra-high data-rate wireless networks.After that, the paper narratives the MAC access protocols of terahertz ultra -high data-rate wireless nerworks which proposed in the literature and some problems about the existing access protocols.On this basis, this thesis puts emphasis researching on the superframe structure and the access protocols.Then, we propose an improved access protocol to enhance the networks’ performance.%太赫兹波是一种位于毫米波和红外光波之间的电磁波；有较宽的未被分配的频带且可支持Gbps以上的无线数据传输速率；因此近年来太赫兹通信技术成为各国研究的热点．本文在IEEE 802．15．3c标准基础之上首先简介太赫兹超高速无线网络；然后叙述太赫兹超高速无线网络的体系结构和目前所面临的挑战；接着描述太赫兹超高速无线网络MAC接入协议的研究现状以及现有接入协议存在的问题；在此基础之上深入研究其超帧结构和信道接入协议，进而对其进行改进，并对该改进算法进行分析．