宽带无线城域网MAC层CS分类器和ARQ机制的研究与实现
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摘要
嵌入式设备和无线通信技术的进步大大推动了无线网络的发展。WiMAX技术是当前热点的无线网络技术，它是一种宽带无线接入技术，用以替代传统的有线连接方式，解决“最后一公里”接入问题。本论文的课题来源于当前最热门的WiMAX研究项目“宽带无线城域网络多媒体实时通信系统”，该项目的研发目标是根据IEEE 802.16标准进行WiMAX系统硬件平台设计和软件系统开发，实现WiMAX系统，并实现WiMAX系统的多媒体实时通信。工作重点是WiMAX协议软件MAC层的设计框架和模块划分；CS子层的设计与实现以及ARQ功能的研究与实现。
本文结合项目开发过程，对WiMAX基站整体架构设计进行了论述，并针对工作重点及相关测试进行了分析和讨论。论文的主要研究工作和创新点体现在下面几个方面：
1．根据协议，分析了IEEE802.16 MAC层中的关键机制。
2．基于picoChip平台的802.16 MAC协议软件的实现。文中介绍了picoChip的DVK102嵌入式开发平台，给出了在上述平台上实现IEEE802.16 MAC层的总体设计框架，模块划分，模块接口定义。
3．802.16 MAC CS子层分类器的设计和实现。文中提出了CS子层分类器的一种实现方案。本文给出了该方案的设计框架，模块划分，分类算法，实现方式。该方案对宽带无线网络的实现工作有着非常重要的作用。
4．802.16 MAC软件的ARQ功能的设计和实现。文中介绍了一种为宽带无线接入网络实现ARQ功能的设计方案，给出了该方案的算法和实现方式。该设计方案对无线城域网络的实现工作有着重要的作用。
5．802.16 MAC分类器的测试方案和测试结果。文中给出了测试的相关流程，测试结果，并对测试结果进行了分析。
The achievements on mobile devices and wireless communication technology lead to the boom of wireless networks. WiMAX (IEEE 802.16 standard) is the hottest wireless networking technologies, which is expected to solve the last-mile problem instead of classic wired connections. The topic of this thesis is based on the project "Multimedia Real-time System of Broad Band WMAN ". The final aim of this project is to implement WiMAX system and transmit the audio and video on this system. My work in the project is focus on part of protocol software design and implements.
In this thesis, an overall analysis of WiMAX technology and WiMAX architecture design is given first, and following is the main part of the thesis, detailed description of my work, based on the design and implementation of the whole project. The main achievements of this thesis are listed as following:
1. Parse the key mechanisms of the IEEE802.16 MAC.
2. The implementation of IEEE 802.16 MAC protocols on picoChip development platform. We introduce the DVK102 embedded platform. The architecture, module partition, module interface and data structure to implement the IEEE 802.16 MAC on that platform are given in the thesis.
3. Design and implementation of CS sub-layer classifier in MAC layer of IEEE 802.16 networks. We introduce a method of CS sub-layer classifier. We introduce the architecture, module partition, and implementation. The proposed classifier method is critical for the future research work on IEEE 802.16 wireless access systems.
4. Design and implementation of ARQ function in MAC layer of IEEE802.16 networks. We introduce a method of ARQ mechanism for the 802.16 network system. We introduce the design idea and implement mode. The proposed ARQ method has been applied in the IEEE 802.16 broadband wireless access systems.
5. Test and integration of 802.16 CS sub-layer; part of test results and related analysis are also provided.
本文结合项目开发过程，对WiMAX基站整体架构设计进行了论述，并针对工作重点及相关测试进行了分析和讨论。论文的主要研究工作和创新点体现在下面几个方面：
1．根据协议，分析了IEEE802.16 MAC层中的关键机制。
2．基于picoChip平台的802.16 MAC协议软件的实现。文中介绍了picoChip的DVK102嵌入式开发平台，给出了在上述平台上实现IEEE802.16 MAC层的总体设计框架，模块划分，模块接口定义。
3．802.16 MAC CS子层分类器的设计和实现。文中提出了CS子层分类器的一种实现方案。本文给出了该方案的设计框架，模块划分，分类算法，实现方式。该方案对宽带无线网络的实现工作有着非常重要的作用。
4．802.16 MAC软件的ARQ功能的设计和实现。文中介绍了一种为宽带无线接入网络实现ARQ功能的设计方案，给出了该方案的算法和实现方式。该设计方案对无线城域网络的实现工作有着重要的作用。
5．802.16 MAC分类器的测试方案和测试结果。文中给出了测试的相关流程，测试结果，并对测试结果进行了分析。
The achievements on mobile devices and wireless communication technology lead to the boom of wireless networks. WiMAX (IEEE 802.16 standard) is the hottest wireless networking technologies, which is expected to solve the last-mile problem instead of classic wired connections. The topic of this thesis is based on the project "Multimedia Real-time System of Broad Band WMAN ". The final aim of this project is to implement WiMAX system and transmit the audio and video on this system. My work in the project is focus on part of protocol software design and implements.
In this thesis, an overall analysis of WiMAX technology and WiMAX architecture design is given first, and following is the main part of the thesis, detailed description of my work, based on the design and implementation of the whole project. The main achievements of this thesis are listed as following:
1. Parse the key mechanisms of the IEEE802.16 MAC.
2. The implementation of IEEE 802.16 MAC protocols on picoChip development platform. We introduce the DVK102 embedded platform. The architecture, module partition, module interface and data structure to implement the IEEE 802.16 MAC on that platform are given in the thesis.
3. Design and implementation of CS sub-layer classifier in MAC layer of IEEE 802.16 networks. We introduce a method of CS sub-layer classifier. We introduce the architecture, module partition, and implementation. The proposed classifier method is critical for the future research work on IEEE 802.16 wireless access systems.
4. Design and implementation of ARQ function in MAC layer of IEEE802.16 networks. We introduce a method of ARQ mechanism for the 802.16 network system. We introduce the design idea and implement mode. The proposed ARQ method has been applied in the IEEE 802.16 broadband wireless access systems.
5. Test and integration of 802.16 CS sub-layer; part of test results and related analysis are also provided.
引文
[1] 网络博客 WiMAX宽带无线接入的特点及其应用模式
[2] 曹迎新 硕士论文 9页
[3] IEEE P802.16-REVd/D5-2004, "Draft IEEE Standard for Local and metropolitan area networks-Part 16: Air Interface for Fixed Broadband Wireless Access Systems," May,2004.
[4] 曾春亮 WiMAX/802.16原理与应用 机械工业出版社 2006 P46-49
[5] 宋海波，谈振辉 802.16宽带无线接入系统的QoS保证和调度策略 电信科学2005年第3期 46-49页
[6] 雷震洲 IEEE 802.16和WiMAX 现代电信科技 2004年7月2-7页
[7] 王国辉 硕士论文 20—25页
[8] 陈家琪 计算机网络 上海理工大学计算机工程学院讲课稿 第四章
[9] 毛妙，张卫，陆刚 嵌入式IP协议栈网络接口设计与分析 计算机应用 第25卷 2005年12月
[10] 孔祥营，柏桂枝 嵌入式实时操作系统VxWorks及其开发环境：Tornado 中国电力出版社 2002
[11] 刘尉悦，张万生，邢涛等 VxWorks操作系统及实时多任务程序设计 单片机与嵌入式系统应用 2001年第5期
[12] 刘艳秋，安军社，张健等 基于VxWorks的以太网接口设计与实现 计算机工程 第30卷第13期 2004年7月
[13] 谭浩强 C程序设计第二版 清华大学出版社 1999
[14] WiMAX FORUM White Paper, "IEEE 802.16a Standard and WiMAX Igniting Broadband Wireless Access," Sep, 2003
[15] WiMAX FORUM, "Business Case Models for Fixed Broadband Wireless Access based on WiMAX Technology and the 802.16 Standard," Oct, 2004
[16] Carl Eklund, Reger B. Marks, Kenneth L. Stanwood, et al., "IEEE Standard 802.16: Technical Overview of the Wireless MAN Air Interface for Broadband wireless Access, " IEEE Communications Magazine, pp. 98-107, Jun. 2002.
[17] Govindan Nair, Joey Chou, Tomasz Madejski, et al., "IEEE 802.16 Media Access Control and Service Provisioning," Intel Techonogy Journal (Volume 8, Issue 3), pp. 213-228, Aug. 2004.
[18] Arunabha Ghosh, David R. Wolter, Jeffrey G Andrews, et al., "Broadband Wireless Access with WiMax/802.16: Current Performance Benchmarks and Future Potential," IEEE Communications Magazine, pp. 129-136, Feb. 2005.
[2] 曹迎新 硕士论文 9页
[3] IEEE P802.16-REVd/D5-2004, "Draft IEEE Standard for Local and metropolitan area networks-Part 16: Air Interface for Fixed Broadband Wireless Access Systems," May,2004.
[4] 曾春亮 WiMAX/802.16原理与应用 机械工业出版社 2006 P46-49
[5] 宋海波，谈振辉 802.16宽带无线接入系统的QoS保证和调度策略 电信科学2005年第3期 46-49页
[6] 雷震洲 IEEE 802.16和WiMAX 现代电信科技 2004年7月2-7页
[7] 王国辉 硕士论文 20—25页
[8] 陈家琪 计算机网络 上海理工大学计算机工程学院讲课稿 第四章
[9] 毛妙，张卫，陆刚 嵌入式IP协议栈网络接口设计与分析 计算机应用 第25卷 2005年12月
[10] 孔祥营，柏桂枝 嵌入式实时操作系统VxWorks及其开发环境：Tornado 中国电力出版社 2002
[11] 刘尉悦，张万生，邢涛等 VxWorks操作系统及实时多任务程序设计 单片机与嵌入式系统应用 2001年第5期
[12] 刘艳秋，安军社，张健等 基于VxWorks的以太网接口设计与实现 计算机工程 第30卷第13期 2004年7月
[13] 谭浩强 C程序设计第二版 清华大学出版社 1999
[14] WiMAX FORUM White Paper, "IEEE 802.16a Standard and WiMAX Igniting Broadband Wireless Access," Sep, 2003
[15] WiMAX FORUM, "Business Case Models for Fixed Broadband Wireless Access based on WiMAX Technology and the 802.16 Standard," Oct, 2004
[16] Carl Eklund, Reger B. Marks, Kenneth L. Stanwood, et al., "IEEE Standard 802.16: Technical Overview of the Wireless MAN Air Interface for Broadband wireless Access, " IEEE Communications Magazine, pp. 98-107, Jun. 2002.
[17] Govindan Nair, Joey Chou, Tomasz Madejski, et al., "IEEE 802.16 Media Access Control and Service Provisioning," Intel Techonogy Journal (Volume 8, Issue 3), pp. 213-228, Aug. 2004.
[18] Arunabha Ghosh, David R. Wolter, Jeffrey G Andrews, et al., "Broadband Wireless Access with WiMax/802.16: Current Performance Benchmarks and Future Potential," IEEE Communications Magazine, pp. 129-136, Feb. 2005.