基于IEEE802.11的无线局域网技术的研究
摘要
现代通信发展的目标是个人通信，即不论是谁、不论在何处和不论什么时候，都能和希望联系的人进行包括语音、数据、视像在内的多业务通信。这就要求通信系统必须具有支持移动的能力，并且还应具有足够高的数据数率以支持各种类型的服务。在目前的几种移动数据传输方式中，只有无线局域网同时具有高数据速率和可移动性，它必然会成为未来个人通信网的重要组成部分。
这篇论文主要对基于IEEE802.11标准系列的无线局域网的若干技术进行了研究，具体如下：
1．简介了当前无线数据通信的发展状况；
2．阐述了IEEE802.11无线局域网的系统组成和技术特点；
3．分析了各种随机竞争型MAC协议的性能和特点，讨论了适用于无线局域网的MAC协议——CSMA／CA。并对各种MAC协议的吞吐量性能进行了仿真；
4．针对物理层的特点，讨论了无线局域网的两种扩频技术——DSSS和FHSS，分析比较了两者的性能特点和适用的范围，并探讨了一种支持高数据数率的CCK调制方式以及使速率能达到16.5Mbps的CCK改进方案；
5．对无线局域网终端卡的设计问题进行探讨。
在进行了上面的工作后，以对后续工作的一些建议和对未来无线局域网发展的展望作为论文的结尾。
The goal of the modern communication is the realization of personal communication, which means that anyone can exchange any kind of information with whoever he want to contact anywhere at any time. So the mobility and the high speed are key techniques of the communication system. Among current mobile communication systems, only the WLAN supports the mobility and high speed so it must be an important part of the mobile communication system in the future.
Some techniques of IEEE802.il WLAN will be studied in the dissertation, and the research includes:
1.Introduced the development of current wireless data communications. 2.Expatiated on the constitutions and techniques of WLAN. 3 .analyzed the performances and characteristics of several stochastically competitive MAC protocols; then discussed the MAC protocol applied
in WLAN--CSMA/CA and at last made some simulation on the
throughputs of all MAC protocols discussed here. 4.Analyzed two types of spread spectrum(DSSS and FHSS) approved by the FCC based on the characteristic of PHY layer; then analyzed the characteristic and technology of the CCK modulation and at last put forward an improved CCK scheme that will increase the data rate of WLAN to 16.5Mbps. 5.Discussed the design of a WLAN card.
At the end of the dissertation we made some advises for the future work and anticipate the development of the WLAN in the future.
这篇论文主要对基于IEEE802.11标准系列的无线局域网的若干技术进行了研究，具体如下：
1．简介了当前无线数据通信的发展状况；
2．阐述了IEEE802.11无线局域网的系统组成和技术特点；
3．分析了各种随机竞争型MAC协议的性能和特点，讨论了适用于无线局域网的MAC协议——CSMA／CA。并对各种MAC协议的吞吐量性能进行了仿真；
4．针对物理层的特点，讨论了无线局域网的两种扩频技术——DSSS和FHSS，分析比较了两者的性能特点和适用的范围，并探讨了一种支持高数据数率的CCK调制方式以及使速率能达到16.5Mbps的CCK改进方案；
5．对无线局域网终端卡的设计问题进行探讨。
在进行了上面的工作后，以对后续工作的一些建议和对未来无线局域网发展的展望作为论文的结尾。
The goal of the modern communication is the realization of personal communication, which means that anyone can exchange any kind of information with whoever he want to contact anywhere at any time. So the mobility and the high speed are key techniques of the communication system. Among current mobile communication systems, only the WLAN supports the mobility and high speed so it must be an important part of the mobile communication system in the future.
Some techniques of IEEE802.il WLAN will be studied in the dissertation, and the research includes:
1.Introduced the development of current wireless data communications. 2.Expatiated on the constitutions and techniques of WLAN. 3 .analyzed the performances and characteristics of several stochastically competitive MAC protocols; then discussed the MAC protocol applied
in WLAN--CSMA/CA and at last made some simulation on the
throughputs of all MAC protocols discussed here. 4.Analyzed two types of spread spectrum(DSSS and FHSS) approved by the FCC based on the characteristic of PHY layer; then analyzed the characteristic and technology of the CCK modulation and at last put forward an improved CCK scheme that will increase the data rate of WLAN to 16.5Mbps. 5.Discussed the design of a WLAN card.
At the end of the dissertation we made some advises for the future work and anticipate the development of the WLAN in the future.
引文
1 郭峰等．无线局域网．北京：电子工业出版社，1997
2 沈振元，聂志泉，赵雪荷．通信系统原理．西安：西安电子科技大学出版社，1993
3 谢希仁．计算机网络．第三版．大连：大连理工大学出版社，2000
4 查光明，熊贤祚．扩频通信．西安：西安电子科技大学出版社，1990
5 王立宁，乐光新，詹菲．MATLAB与通信仿真．北京：人民邮电出版社，2000
6 张志涌，徐彦琴等．MATLAB教程．北京：北京航空航天大学出版社，2001
7 郭梯云，邬国扬．移动通信．西安：西安电子科技大学出版社，1995
8 王世一．数字信号处理．修订版．北京：北京理工大学出版社，1997
9 John G. Proakis. Digital Communication. 3rd edition. New York: McGraw-Hill, 1995
10 李灿，杨涛等．补码键控技术及其在无线局域网中的应用．电讯技术．2001(5)：40-41
11 曹常义，单方骥，张力军．无线局域网采用的补偿码键控调制方式．现代电信科技．2002(5)：35-39
12 Van Nee R. Variations on QMBOK using a Complex Code Set[R]. Lucent Corporation Internal Memorandom. 1998(6)
13 Halford K, Halford S, Webster M, Andren C. Complementary Code Keying for RAKE-based Indoor Witless Communication. Proceeding of the 1999 IEEE International Symposium on Ciucuits and Systems
14 Issa Haitham M Ata，仇佩亮．两种提高IEEE802．11b WLAN物理层数据传输数率的编码技术．电路与系统学报．2002(3)：41-46
15 潘逢治，张立明．短时离散Walsh变换的快速算法．复旦学报(自然科学版)．2002(4)：230-234
16 郑宝玉．一种结构简单的快速W变换算法及其实现．电子学报．1995(4)：74-79
17 王中德．快速W变换-算法和程序．中国科学．1988(5)：549-560
18 裴珂，晋晓辉．无线网卡设计与实现[J]．西安电子科技大学学报．2000(12)： 790-794
19 吴光荣，郭峰，刘乃安．无线网卡微波收发机设计．西安电子科技大学学报．1999(2)：129-131
20 马勇．无线局域网技术的研究与实现．北京邮电大学论文集．2001：23-46
21 黄坚，毕光国．存在隐藏终端的无线LAN性能仿真研究．通信学报．1999(3)：68-74
22 Simon Haykin. Communication Systems[M]. 2nd edition. Canada: John Wiley & Sons Inc. 1983
23 Goly M. J. E. Complementary Series. IRE Trans on Information Theory. 1961(4): 82-87
24 Taeng C, Liu C L. Complementary Sets of Sequences. IEEE Transaction on Information Theory. 1978(9): 644-652
25 Van Nee Richard. OFDM Codes for Peak-to-Average Power Reduction and Error Correction. IEEE Global Telecommunications Conference. 1996: 740-744
26 IEEES02.11. Wireless LAN standard, 1999
27 IEEE802.11a. Wireless LAN standard, 1999
28 IEEE802.11b. Wireless LAN standard, 1999
29 Frank, Robert L. Poly-phase Complementary Codes[J]. IEEE Transactions on Information Theory. 1980(11): 641-647
30 Golay, Marcel J E. Complementary Series[J]. IEEE Transaction on Information Theory. 1961(4): 82-87
31 Huang K C, Chen K C. Interference analysis of non-persistent CSMA with hidden terminals in multicell wireless networks. In: Proceeding PIMRC'95
32 Sivaswamy R. Multiphase Complementary code. IEEE Trans on Information Theory. 2000(5)
33 Tzi-Dar Chiueh, Shu-Mei Li, Trellis-Coded Complementary Code Keying for High-Rate Wireless LAN Systems, IEEE Communication Letters, 2001(5)
34 Zhongde Wang. Fast algorithms for the discrete W transform and for the discrete Fourier transform. IEEE Trans. 1984, ASSP-32: 803-816
35 Oran Sharon, Eitan Altman. An Efficient Polling MAC for Wireless LANs. IEEE/ACM Transaction on Networking. 2001(8): 439-451
36 Kleinrock L, Tobagi F. Packet switching in radio channels, part Ⅰ-carrier sense multiple access modes and their throughput-delay characteristics. IEEE Trans Comm 1975COM-24(12): 1400-1416
37 Kleinrock L, Tobagi F. Packet switching in radio channels, part Ⅱ-the hidden terminal problem in carrier sense multiple access and busy tone solution. IEEE Trans Comm 1975 COM-23(12): 1417-1433
38 Carrier sense multiple access with collision detection(CSMA/CD)access method and physical layer specifications, ANSI/IEEE Std. 802.3. 1998
39 J. J. Metzner. On improving utilization in ALOHA networks. IEEE Transaction on Communication. 1976(8): 447-448
40 Andren C, Webster M. CCK Modulation Delivers 11Mbps for High Rate 802.11 Extension[A]. Proc Wireless Symposium/Portable By Design Conference[C]. 1999
41 Tien-Shin Ho, Kwang-Cheng Chen. Performance analysis of IEEE 802.11 CSMA/CA medium access control protocol。 New York: Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications. 1996
42 Bianchi. G, Fratta. L, Oliveri. M. Performance evaluation and enhancement of the CSMA/CA MAC protocol for 802.11 wireless LANs. Proceedings of PIMRC '96- 7th International Symposium on Personal, Indoor, and Mobile Communications. 1996
43 Shacham. N, Hunt. V. B. Performance evaluation of the CSMA/CD (1-persistent) channel-access protocol in common-channel local networks. Local Computer Networks. Proceedings of the IFIP TC 6 International In-Depth Symposium. 1982
44 Vermeer. V. Wireless LANs: why IEEE 802.11 DSSS?WESCON/97 Conference Proceedings, 1997
45 Bob Pearson. Complementary Code Keying Made Simple[R]. Application note(AN9850.1). 2000(5)
2 沈振元，聂志泉，赵雪荷．通信系统原理．西安：西安电子科技大学出版社，1993
3 谢希仁．计算机网络．第三版．大连：大连理工大学出版社，2000
4 查光明，熊贤祚．扩频通信．西安：西安电子科技大学出版社，1990
5 王立宁，乐光新，詹菲．MATLAB与通信仿真．北京：人民邮电出版社，2000
6 张志涌，徐彦琴等．MATLAB教程．北京：北京航空航天大学出版社，2001
7 郭梯云，邬国扬．移动通信．西安：西安电子科技大学出版社，1995
8 王世一．数字信号处理．修订版．北京：北京理工大学出版社，1997
9 John G. Proakis. Digital Communication. 3rd edition. New York: McGraw-Hill, 1995
10 李灿，杨涛等．补码键控技术及其在无线局域网中的应用．电讯技术．2001(5)：40-41
11 曹常义，单方骥，张力军．无线局域网采用的补偿码键控调制方式．现代电信科技．2002(5)：35-39
12 Van Nee R. Variations on QMBOK using a Complex Code Set[R]. Lucent Corporation Internal Memorandom. 1998(6)
13 Halford K, Halford S, Webster M, Andren C. Complementary Code Keying for RAKE-based Indoor Witless Communication. Proceeding of the 1999 IEEE International Symposium on Ciucuits and Systems
14 Issa Haitham M Ata，仇佩亮．两种提高IEEE802．11b WLAN物理层数据传输数率的编码技术．电路与系统学报．2002(3)：41-46
15 潘逢治，张立明．短时离散Walsh变换的快速算法．复旦学报(自然科学版)．2002(4)：230-234
16 郑宝玉．一种结构简单的快速W变换算法及其实现．电子学报．1995(4)：74-79
17 王中德．快速W变换-算法和程序．中国科学．1988(5)：549-560
18 裴珂，晋晓辉．无线网卡设计与实现[J]．西安电子科技大学学报．2000(12)： 790-794
19 吴光荣，郭峰，刘乃安．无线网卡微波收发机设计．西安电子科技大学学报．1999(2)：129-131
20 马勇．无线局域网技术的研究与实现．北京邮电大学论文集．2001：23-46
21 黄坚，毕光国．存在隐藏终端的无线LAN性能仿真研究．通信学报．1999(3)：68-74
22 Simon Haykin. Communication Systems[M]. 2nd edition. Canada: John Wiley & Sons Inc. 1983
23 Goly M. J. E. Complementary Series. IRE Trans on Information Theory. 1961(4): 82-87
24 Taeng C, Liu C L. Complementary Sets of Sequences. IEEE Transaction on Information Theory. 1978(9): 644-652
25 Van Nee Richard. OFDM Codes for Peak-to-Average Power Reduction and Error Correction. IEEE Global Telecommunications Conference. 1996: 740-744
26 IEEES02.11. Wireless LAN standard, 1999
27 IEEE802.11a. Wireless LAN standard, 1999
28 IEEE802.11b. Wireless LAN standard, 1999
29 Frank, Robert L. Poly-phase Complementary Codes[J]. IEEE Transactions on Information Theory. 1980(11): 641-647
30 Golay, Marcel J E. Complementary Series[J]. IEEE Transaction on Information Theory. 1961(4): 82-87
31 Huang K C, Chen K C. Interference analysis of non-persistent CSMA with hidden terminals in multicell wireless networks. In: Proceeding PIMRC'95
32 Sivaswamy R. Multiphase Complementary code. IEEE Trans on Information Theory. 2000(5)
33 Tzi-Dar Chiueh, Shu-Mei Li, Trellis-Coded Complementary Code Keying for High-Rate Wireless LAN Systems, IEEE Communication Letters, 2001(5)
34 Zhongde Wang. Fast algorithms for the discrete W transform and for the discrete Fourier transform. IEEE Trans. 1984, ASSP-32: 803-816
35 Oran Sharon, Eitan Altman. An Efficient Polling MAC for Wireless LANs. IEEE/ACM Transaction on Networking. 2001(8): 439-451
36 Kleinrock L, Tobagi F. Packet switching in radio channels, part Ⅰ-carrier sense multiple access modes and their throughput-delay characteristics. IEEE Trans Comm 1975COM-24(12): 1400-1416
37 Kleinrock L, Tobagi F. Packet switching in radio channels, part Ⅱ-the hidden terminal problem in carrier sense multiple access and busy tone solution. IEEE Trans Comm 1975 COM-23(12): 1417-1433
38 Carrier sense multiple access with collision detection(CSMA/CD)access method and physical layer specifications, ANSI/IEEE Std. 802.3. 1998
39 J. J. Metzner. On improving utilization in ALOHA networks. IEEE Transaction on Communication. 1976(8): 447-448
40 Andren C, Webster M. CCK Modulation Delivers 11Mbps for High Rate 802.11 Extension[A]. Proc Wireless Symposium/Portable By Design Conference[C]. 1999
41 Tien-Shin Ho, Kwang-Cheng Chen. Performance analysis of IEEE 802.11 CSMA/CA medium access control protocol。 New York: Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications. 1996
42 Bianchi. G, Fratta. L, Oliveri. M. Performance evaluation and enhancement of the CSMA/CA MAC protocol for 802.11 wireless LANs. Proceedings of PIMRC '96- 7th International Symposium on Personal, Indoor, and Mobile Communications. 1996
43 Shacham. N, Hunt. V. B. Performance evaluation of the CSMA/CD (1-persistent) channel-access protocol in common-channel local networks. Local Computer Networks. Proceedings of the IFIP TC 6 International In-Depth Symposium. 1982
44 Vermeer. V. Wireless LANs: why IEEE 802.11 DSSS?WESCON/97 Conference Proceedings, 1997
45 Bob Pearson. Complementary Code Keying Made Simple[R]. Application note(AN9850.1). 2000(5)