基于網(wǎng)絡編碼的無線傳輸技術研究

摘 要：基于網(wǎng)絡編碼的無線傳輸技術是一個新興的、高度集成的領域，目前涉及多個學科的綜合知識。它包含大量節(jié)點，甚至將數(shù)千個節(jié)點集中在控制無線傳輸網(wǎng)絡系統(tǒng)的監(jiān)視器上。分布廣泛的節(jié)點由于環(huán)境的多樣性和能量的消耗而存在故障發(fā)生的可能。本文中筆者針對無線傳輸技術網(wǎng)絡能量和通信容量的限制，提出了一種將多徑傳輸與網(wǎng)絡編碼相結合的技術，將其引入到無線傳感器網(wǎng)絡中，以平衡網(wǎng)絡負載，整體降低能耗，延長網(wǎng)絡生命周期。并且就基于網(wǎng)絡編碼的無線傳輸技術進行分析。

關鍵詞：網(wǎng)絡編碼；無線傳輸技術；研究

中圖分類號：TN919.72 文獻標識碼：A 文章編號：2096-4706（2018）03-0060-02

Research on Wireless Transmission Technology based on Network Coding

YAN Xiaohui

（Naval Sergeant School，Bengbu 233012，China）

Abstract：Wireless transmission technology based on network coding is a new and highly integrated field，and now it involves multiple disciplines and comprehensive knowledge. It contains a large number of nodes，and even thousands of nodes are concentrated on the monitor of wireless transmission network system. The widespread distribution of nodes is possible due to environmental diversity and energy consumption. In this paper，aiming at the limitation of network energy and communication capacity of wireless transmission technology，a technology that combines multipath transmission and network coding is proposed，which is introduced into wireless sensor network to balance network load，reduce energy consumption as a whole and prolong life cycle of network. And this research mainly focuses on the analysis of wireless transmission technology based on network coding.

Keywords：network coding；wireless transmission technology；research

0 引 言

基于網(wǎng)絡編碼的無線傳輸技術包括多個方面，可指通過無線電波自由空間的無線信號傳輸、所有類型的非有線通信以及無線電功率無人造導體的電能傳輸。編碼是一種數(shù)學技術，可用于提高網(wǎng)絡的吞吐量、效率可量測性以及抵御攻擊和竊聽等而不是簡單地將收到的信息節(jié)點網(wǎng)絡分成幾個分組并將其組合在一起進行傳輸。這可用于獲得最大值信息。

1 網(wǎng)絡編碼系統(tǒng)的分析

1.1 網(wǎng)絡編碼示例體系

網(wǎng)絡編碼示例體系通常用于說明其如何優(yōu)選擇途徑。兩個源節(jié)點具有必須傳輸?shù)絻蓚€目的地節(jié)點的信息，這兩個目的地節(jié)點各自邊緣只能攜帶單個值。如果只允許使用路由，則中心鏈路只能承載單個系統(tǒng)，而不能同時承載兩者。假設我們使網(wǎng)絡編碼體系經(jīng)過中心；……