IEEE 802.11p無(wú)線網(wǎng)卡Linux驅(qū)動(dòng)程序研究與設(shè)計(jì)

1.83萬(wàn)字
自己原創(chuàng)的畢業(yè)論文，已經(jīng)通過(guò)校內(nèi)系統(tǒng)檢測(cè)，重復(fù)率低，僅在本站獨(dú)家出售，大家放心下載使用

摘要 隨著交通業(yè)發(fā)展，汽車(chē)占有率提高，人們對(duì)交通管理提出更高要求；因此，車(chē)聯(lián)網(wǎng)的研究也備受關(guān)注。車(chē)輛自組織網(wǎng)絡(luò)（VANET, Vehicle Ad-Hoc Network）是汽車(chē)在高速移動(dòng)的環(huán)境中，通過(guò)車(chē)輛上裝置的通信設(shè)備實(shí)現(xiàn)無(wú)線接入，來(lái)構(gòu)建車(chē)輛與車(chē)輛之間、車(chē)輛與路邊基礎(chǔ)設(shè)施之間的無(wú)線通信網(wǎng)絡(luò)；從而有效地解決目前的交通堵塞問(wèn)題、保證行車(chē)安全、提高交通效率，同時(shí)也為車(chē)輛提供輔助駕駛的功能和車(chē)載娛樂(lè)的應(yīng)用。
本論文主要研究?jī)?nèi)容包括WAVE/IEEE 1609系列標(biāo)準(zhǔn)的分析和802.1 1p無(wú)線網(wǎng)卡驅(qū)動(dòng)的實(shí)現(xiàn)兩部分。本文采用DCMA86 P2，Atheros5414B 芯片的無(wú)線網(wǎng)卡，完成適用于高速移動(dòng)環(huán)境下的IEEE 802.11p 標(biāo)準(zhǔn)的網(wǎng)卡驅(qū)動(dòng)的實(shí)現(xiàn)。具體做法是通過(guò)利用Linux操作系統(tǒng)下的無(wú)線網(wǎng)卡兼容包c(diǎn)ompat-wireless 中的ath5k 驅(qū)動(dòng)，在IEEE802.11a 驅(qū)動(dòng)源代碼的基礎(chǔ)上進(jìn)行修改，得到工作在IEEE802.11p 模式下的網(wǎng)卡驅(qū)動(dòng)，并且搭建ad-hoc網(wǎng)絡(luò)，最后測(cè)試網(wǎng)卡的通信性能。
關(guān)鍵詞：802.11p標(biāo)準(zhǔn)； 802.11a標(biāo)準(zhǔn)； ath5k； VANET


Research and design of network card driver based on IEEE802.11p standard

Abstract With the development of transportation, and the increasment of car occupancy, much higher demands of transport management have been asked for. Therefore, the vehicle networking researches have aroused much attention. Vehicle Ad-hoc Network (VANET) provides wireless access in a high-speed mobile environment, and builds a wireless communication between the vehicle and the vehicle, the vehicle and the roadside infrastructure. VANET can solve the traffic congestion problem, ensure traffic safety and traffic efficiency, and provide the vehicle driver assistance applications and in-car entertainment.
This paper mainly discusses the implementation of network card driver based on IEEE802.11p standard. 802.11p, also known as WAVE, is a standard protocol intended for future traffic systems in order to support safety and commercial non-safety applications for vehicular communication. This paper adopts 802.11p network card DCMA86P2, Atheros5414B chipset to implement wireless network driver in high speed mobile environment. To be specific, this paper presents the method of implementing IEEE 802.11p standard based on 802.11a driver, compat-wireless source code ath5k; and establishes Ad-Hoc network communication testing.

Key words: 802.11p; 802.11a; ath5k; VANET


目 錄
第一章 緒 論 1
1.1 研究背景與意義 1
1.2車(chē)載自組織網(wǎng)絡(luò) 1
1.2.1 車(chē)輛自組織網(wǎng)絡(luò)的結(jié)構(gòu) 2
1.2.2 車(chē)輛自組織網(wǎng)絡(luò)的特點(diǎn) 3
1.3 國(guó)內(nèi)外研究現(xiàn)狀 3
1.4論文的研究?jī)?nèi)容 6
第二章 IEEE802.11p標(biāo)準(zhǔn)的分析 7
2.1 DSRC系統(tǒng)組成 7
2.2 802.11無(wú)線網(wǎng)絡(luò)綜述 8
2.2.1 IEEE 802.11物理層 9
2.2.2 IEEE 802.11MAC 10
2.3 IEEE 802.11p標(biāo)準(zhǔn) 10
2.3.1 IEEE802.11p物理層特性 11
2.3.2 IEEE 802.11p MAC層特性 12
2.4 IEEE 1609標(biāo)準(zhǔn)概述 12
2.5本章小結(jié) 14
第三章 IEEE 802.1 1p無(wú)線網(wǎng)卡的驅(qū)動(dòng)實(shí)現(xiàn) 15
3.1 DCMA86P2無(wú)線網(wǎng)卡特性 15
3.2 Linux內(nèi)核體系結(jié)構(gòu) 17
3.3 Linux設(shè)備驅(qū)動(dòng)程序 20
3.3.1并發(fā)控制 21
3.3.2中斷 22
3.3.3網(wǎng)絡(luò)驅(qū)動(dòng) 23
3.4 ath5k驅(qū)動(dòng)程序 24
3.4.1 ath5k 驅(qū)動(dòng)物理參數(shù)修改 25
3.4.2 wireless-tools，iw，regdb，crda，hostapd工具實(shí)現(xiàn) 802.11p 27
3.4.3 ath5k驅(qū)動(dòng)模塊的編譯和加載 28
3.5本章小結(jié) 29
第四章 網(wǎng)卡通信性能測(cè)試 31
4.1網(wǎng)卡驅(qū)動(dòng)的配置 31
4.1.1網(wǎng)卡工作模式的設(shè)置 31
4.2 TCP和UDP鏈接試驗(yàn) 32
4.2.1 TCP帶寬性能測(cè)試 33
4.2.2 UDP帶寬性能測(cè)試 34
4.3本章小結(jié) 35
第五章 總 結(jié) 36
5.1總結(jié) 36
5.2展望 37
致謝詞 38
參考文獻(xiàn)： 39