基于網(wǎng)絡(luò)編碼的無線傳輸技術(shù)研究

摘 要：基于網(wǎng)絡(luò)編碼的無線傳輸技術(shù)是一個(gè)新興的、高度集成的領(lǐng)域，目前涉及多個(gè)學(xué)科的綜合知識(shí)。它包含大量節(jié)點(diǎn)，甚至將數(shù)千個(gè)節(jié)點(diǎn)集中在控制無線傳輸網(wǎng)絡(luò)系統(tǒng)的監(jiān)視器上。分布廣泛的節(jié)點(diǎn)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(duì)無線傳輸技術(shù)網(wǎng)絡(luò)能量和通信容量的限制，提出了一種將多徑傳輸與網(wǎng)絡(luò)編碼相結(jié)合的技術(shù)，將其引入到無線傳感器網(wǎng)絡(luò)中，以平衡網(wǎng)絡(luò)負(fù)載，整體降低能耗，延長(zhǎng)網(wǎng)絡(luò)生命周期。并且就基于網(wǎng)絡(luò)編碼的無線傳輸技術(shù)進(jìn)行分析。

關(guān)鍵詞：網(wǎng)絡(luò)編碼；無線傳輸技術(shù)；研究

中圖分類號(hào)：TN919.72 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：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(luò)編碼的無線傳輸技術(shù)包括多個(gè)方面，可指通過無線電波自由空間的無線信號(hào)傳輸、所有類型的非有線通信以及無線電功率無人造導(dǎo)體的電能傳輸。編碼是一種數(shù)學(xué)技術(shù)，可用于提高網(wǎng)絡(luò)的吞吐量、效率可量測(cè)性以及抵御攻擊和竊聽等而不是簡(jiǎn)單地將收到的信息節(jié)點(diǎn)網(wǎng)絡(luò)分成幾個(gè)分組并將其組合在一起進(jìn)行傳輸。這可用于獲得最大值信息。

1 網(wǎng)絡(luò)編碼系統(tǒng)的分析

1.1 網(wǎng)絡(luò)編碼示例體系

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