ansi ieee std 802 11 1999 edition
Nghiên cứu phương pháp phân tích và đánh giá chất l-ợng dịch vụ cho các mạng cục bộ không dây dựa trên chuẩn IEEE 802.11
Ngày tải lên :
05/04/2013, 15:52
... hc) Tip sau ú l cỏc chun IEEE 802. 11a, IEEE8 02.11b, IEEE8 02.11g v mi õy nht l s i ca chun IEEE 802. 11e v IEEE 802. 11i Danh sỏch cỏc chun b chun IEEE 802. 11 * IEEE 802. 11 - The original Mbit/s ... and metrics * IEEE 802. 11u - Interworking with non -802 networks (e.g., cellular) * IEEE 802. 11v - Wireless network management * IEEE 802. 11w - Protected Management Frames * IEEE 802. 11x - (reserved ... Mbit/s (1999) * IEEE 802. 11c - Bridge operation procedures; included in the IEEE 802. 1D standard (2001) * IEEE 802. 11d - International (country-to-country) roaming extensions (2001) * IEEE 802. 11e...
- 102
- 752
- 1
Tài liệu Guide to Securing Legacy IEEE 802.11 Wireless Networks ppt
Ngày tải lên :
14/02/2014, 08:20
... technologies: IEEE 802. 11a, 802. 11b, 802. 11g, and 802. 11n In addition, a brief overview of the updated security standard for IEEE 802. 11 networks, IEEE 802. 11i, is provided 2.1 IEEE 802. 11 Variants ... Security, 2004 IEEE Standard 802. 11, 1999 Edition IEEE Standard 802. 11i, 2004 Edition Also available at http://standards .ieee. org/getieee802/download /802. 11i-2004.pdf IEEE Standard 802. 1X, 2004 Edition ... http://standards .ieee. org/getieee802/download /802. 1X-2004.pdf IEEE Standard 802. 11, 2007 Edition Also available at http://standards .ieee. org/getieee802/download /802. 11- 2007.pdf D-1 GUIDE TO SECURING LEGACY IEEE...
- 50
- 735
- 0
An ninh mạng LAN không dây (IEEE 802.11) pptx
Ngày tải lên :
09/03/2014, 09:20
... tất chuẩn thành phần IEEE 802. 11 sử dụng để biểu thị chuẩn 802. 11, gọi 802. 11 gốc (802. 11 legacy) 9/4/2012 Sau chuẩn, IEEE 802. 11a (băng tần 5,8 GHz) IEEE 802. 11b (băng tần 2,4 GHz), ... chuẩn WLAN Chuẩn IEEE 802. 11 thức ban hành năm 1997 IEEE 802. 11 (chuẩn WiFi) biểu thị tập hợp chuẩn WLAN phát triển ủy ban chuẩn hóa IEEE LAN/MAN (IEEE 802. 11) Thuật ngữ 802. 11x sử dụng để biểu ... Ad-hoc) 11 9/4/2012 Các chuẩn an ninh hỗ trợ IEEE 802. 11 IEEE 802. 11 (WEP) IEEE 802. 1X Wi-Fi Protected Access (WPA) Wi-Fi Protected Access (WPA2) 12 9/4/2012 Chuẩn an ninh Các phương pháp xác thực IEEE...
- 105
- 1.1K
- 6
IEEE 802.11 Tutorial pptx
Ngày tải lên :
09/03/2014, 13:20
... describes IEEE 802. 11 Wireless Local Area Network (WLAN) Standard It describes IEEE 802. 11 MAC Layer in detail and it briefly mentions IEEE 802. 11a, IEEE 802. 11b physical layer standard and IEEE 802. 11e ... be an AP, a bridge, or a router Because IEEE 802. 11 is one of the family of IEEE 802 standards, an IEEE 802. 11 frame must be translated from the IEEE 802. 11 format to the format of the other LAN ... individual manufacturers of IEEE 802. 11 equipment Secure placement of keys int the individual stations is a discussion in IEEE 802. 11 working group WEP Details: IEEE 802. 11 provides two mechanisms...
- 93
- 324
- 0
802.11 wireless networks the definitive guide second edition
Ngày tải lên :
05/05/2014, 12:46
... Name Chapter Overview of 802. 11 Networks IEEE 802 Network Technology Family Tree 802. 11 Nomenclature and Design 802. 11 Network Operations Mobility Support Chapter 802. 11 MAC Fundamentals Challenges ... incorporate changes made by 802. 11a, 802. 11b, and 802. 11d, as well as changes made by TGc into the main 802. 11 specification (Think "m" for maintenance.) TGn (future 802. 11n) Task group founded to ... "faster, better, and cheaper," the data rate of most 802. 11 interfaces has shot from or 11 Mbps with 802. 11b to 54 Mbps with 802. 11a and 802. 11g Increased speed with backwards compatibility has...
- 730
- 630
- 0
Báo cáo hóa học: " Dynamic tuning of the IEEE 802.11 distributed coordination function to derive a theoretical throughput limit" pot
Ngày tải lên :
20/06/2014, 22:20
... 500 Bytes: IEEE 802. 11+ vs DCW (d) 1500 Bytes: IEEE 802. 11+ vs DCW (f) 2312 Bytes: IEEE 802. 11+ vs DCW Figure Normalized throughput (a) 500 bytes: DCF versus DCW (b) 500 bytes: IEEE 802. 11+ versus ... 1500 Bytes: IEEE 802. 11+ vs DCW (e) 2312 Bytes: DCF vs DCW (f) 2312 Bytes: IEEE 802. 11+ vs DCW Figure Collision probability (a) 500 bytes: DCF versus DCW (b) 500 bytes: IEEE 802. 11+ versus DCW ... differences in IEEE 802. 11+ [4] and DCW, the scale for the y-axis in Figure 7a, c, e (DCF versus DCW) as well as Figure 7b, d, f (IEEE 802. 11+ versus DCW) is different IEEE 802. 11 + is very close...
- 12
- 358
- 0
Báo cáo hóa học: " Research Article Design and Implementation of a Lightweight Security Model to Prevent IEEE 802.11 Wireless DoS Attacks" pdf
Ngày tải lên :
21/06/2014, 05:20
... InterfaceTable tcp q: # udp q: # NetworkLayer 8021 1 ACFNC NIC pingApp q: # Radio 8021 1 ACFNC MAC 8021 1 MgmtAP STSF Figure 5: Structure of the protected 8021 1-ACFNC-NIC in the simulation environment ... determine these five threshold time windows, some IEEE 802. 11 standard notations [1, 27] are used which are identified in Table In the IEEE 802. 11 standard, except for the unicast data and management ... The details are as follows 4.1 Simulation of the IEEE 802. 11 Current Model The simulation environment A is developed to implement the IEEE 802. 11 current model It consists of two areas as authorized...
- 16
- 648
- 1
Báo cáo hóa học: " Research Article An IEEE 802.11 EDCA Model with Support for Analysing Networks with Misbehaving Nodes" ppt
Ngày tải lên :
21/06/2014, 11:20
... LAN Medium Access Control(MAC) and Physical Layer (PHY) Specifications,” IEEE Std 802. 11- 2007(Revision of IEEE Std 802. 11- 1999) , 2007 [2] Madwifi Project, http://madwifi-project.org/ [3] G Bianchi, ... dropped Table contains the standard values of the EDCA parameters for IEEE 802. 11 HR/DSSS (known as 802. 11b) [1] Furthermore, for 802. 11b the standard defines NC = 4, M equal to or (depending on frame ... attack,” IEEE/ ACM Transactions on Networking, vol 14, no 6, pp 116 7 117 8, 2006 [11] K J Park, J Choi, K Kang, and Y C Hu, “Malicious or selfish? Analysis of carrier sense misbehavior in IEEE 802. 11...
- 13
- 364
- 0
Báo cáo hóa học: " Research Article Channel Resource Allocation for VoIP Applications in Collaborative IEEE 802.11/802.16 Networks" ppt
Ngày tải lên :
21/06/2014, 11:20
... collaborative IEEE 802. 11 /802. 16 network Numerical results are provided in Section with important conclusions drawn in Section Overview of the IEEE 802. 11 and the IEEE 802. 16 MAC Protocols 2.1 IEEE 802. 11 ... Building Building 802. 16 BS 802. 11 AP + 802. 16 SS 802. 11 AP + 802. 16 SS CFP Beacon Beacon Beacon Beacon Figure 1: A typical scenario of the collaborative IEEE 802. 11 and IEEE 802. 16 networks CFP ... for the IEEE 802. 16 and the IEEE 802. 11 MAC protocols Precisely, we analyzed the IEEE 802. 11 and the IEEE 802. 16 MAC protocols, frame structures, and proposed to embed multiple IEEE 802. 16 frames...
- 11
- 519
- 0
Báo cáo hóa học: " Research Article Reducing the MAC Latency for IEEE 802.11 Vehicular Internet Access" pdf
Ngày tải lên :
21/06/2014, 17:20
... 802. 11 b, a myriad of research has been conducted for other standards in the 802. 11 family, confirming the suitability of 802. 11 WLANs for vehicle scenarios [6, 7] 2.2 Handoff In the IEEE 802. 11 ... “An Integrated CMOS RF Synthesizer for 802. 11a Wireless LAN,” IEEE Journal of SolidState Circuits, vol 38, no 10, pp 1767–1770, 2003 [12] IEEE 802. 11, “Part11: Wireless LAN Medium Access Control ... scanning delay Our approach may be even more favorable for 802. 11 a than for 802. 11 b, since the scanning delay will be even higher for 802. 11 a with 32 channels Conclusions Much research has been...
- 9
- 325
- 0
Báo cáo hóa học: " Research Article Connectivity-Based Reliable Multicast MAC Protocol for IEEE 802.11 Wireless LANs" doc
Ngày tải lên :
21/06/2014, 23:20
... transmitted with the peak rate 54 Mbps of IEEE 802. 11a wireless LANs When the multicast and uplink user payloads of 88 bits or 1000 bits are transmitted in IEEE 802. 11a wireless LANs, we present the ... for IEEE 802. 11 wireless LANs,” EURASIP Journal on Wireless Communications and Networking, vol 2008, Article ID 598038, 10 pages, 2008 [11] K Xu, M Gerla, and S Bae, “How effective is the IEEE 802. 11 ... This study was supported by research funds from Dong-A University References [1] IEEE, IEEE Wireless LAN Edition, IEEE Press, New York, NY, USA, 2003 [2] S Choi and K Choi, “Reliable multicast...
- 6
- 243
- 0
Báo cáo hóa học: " Article ID 598038, 10 pages doi:10.1155/2008/598038 Research Article Hybrid Polling Method for Direct Link Communication for IEEE 802.11 Wireless LANs Woo-Yong Choi" pot
Ngày tải lên :
21/06/2014, 23:20
... from Dong-A University REFERENCES [1] IEEE Std 802. 11, “Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications,” 1999 [2] IEEE Std 802. 11a, “Wireless LAN Medium Access Control ... Band,” 1999 [3] IEEE Std 802. 11b, “Wireless LAN Medium Access Control (MAC) and Physical Layer Specifications: Higher Speed Physical Layer (PHY) Extension in the 2.4 GHz Band,” 1999 [4] IEEE Std 802. 11g, ... time is microseconds in IEEE 802. 11a wireless LANs In Figures 4, 5, 6, 7, 8, 9, 10, 11, and 12, we present the simulation results of the maximum delay bounds of IEEE 802. 11a wireless LAN with the...
- 10
- 258
- 0
Báo cáo hóa học: " Research Article Achievable Throughput-Based MAC Layer Handoff in IEEE 802.11 Wireless Local Area Networks" pptx
Ngày tải lên :
21/06/2014, 23:20
... denotes that 802. 11b APs are saturated, STAs in LLF mechanism are likely to select 802. 11b APs since the loaded traffic on the 802. 11b APs ( 11 Mbps) is less than that on the 802. 11a APs (≤54 Mbps) ... Gigabit Ethernet AP 802. 11b channel #1 AP 802. 11b nAP channel #11 10.1.1.100 cAP 10.1.2.100 Wireless network monitor (NetMon) 10.1.1.1 s1 10.1.1.2 s2 Windows laptops (XP) 802. 11b NIC STA 10.1.2.1 ... IEEE Std 802. 11e Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, Amendment 8: Medium Access Control (MAC) Quality of Service Enhancements,” 2005 IEEE Std 802. 11k...
- 15
- 303
- 0
Báo cáo hóa học: " Research Article Modified Isochronous Coordination Function for Enhancement of VoIP Call Capacity over IEEE 802.11 WLAN" pptx
Ngày tải lên :
22/06/2014, 19:20
... QoS [1] IEEE 802. 11, IEEE Standards for Information Technology— Telecommunication and Information Exchange between Systems—Local and Metropolitan Area Network—Specific Requirement—Part 11: “Wireless ... over IEEE 802. 11 wireless local area networks,” IEEE Wireless Communications, vol 13, no 1, pp 22–29, 2006 [10] W Wang, S C Liew, and V O K Li, “Solutions to performance problems in VoIP over a 802. 11 ... pp 259–268, 2001 [6] L Zhao and C Fan, “M-PCF: Modified IEEE 802. 11 PCF protocol implementing QoS,” Electronics Letters, vol 38, no 24, pp 1 611 1613, 2002 8 EURASIP Journal on Wireless Communications...
- 8
- 323
- 0
Báo cáo hóa học: " CSMA/CCA: A Modified CSMA/CA Protocol Mitigating the Fairness Problem for IEEE 802.11 DCF" docx
Ngày tải lên :
22/06/2014, 22:20
... index STD 0.0016 3.3003 0.00078 7.3018 0.0077 4.0305 0.0 011 0.7578 Fairness index LFI 1.2516 1.7953 1.3645 1.0560 IEEE 802. 11 DCF Therefore, it can be readily deployed in the existing IEEE 802. 11 ... IEEE 802. 11 WG, Wireless LAN medium access control (MAC) and physical layer (PHY) specifications: higher speed physical layer (PHY) extension in the 2.4GHz band, IEEE Std 802. 11b/D5.0, April 1999 ... 1999 IEEE 802. 11 WG, Wireless LAN medium access control (MAC) and physical layer (PHY) specifications: higher speed physical layer (PHY) extension in the 5GHz band, IEEE Std 802. 11a/D5.0, April 1999...
- 12
- 302
- 0