ieee 802 11 wireless lan security ppt
Tài liệu Guide to Securing Legacy IEEE 802.11 Wireless Networks ppt
... WLAN 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 ... on Wireless 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 ... 1999, IEEE ratified two amendments to the IEEE 802. 11 standard IEEE 802. 11a and IEEE 802. 11b—that define radio transmission methods and modulation techniques. WLAN equipment based on IEEE 802. 11b...
Ngày tải lên: 14/02/2014, 08:20
Báo cáo hóa học: " Research Article Design and Implementation of a Lightweight Security Model to Prevent IEEE 802.11 Wireless DoS Attacks" pdf
... with IEEE 802. 11 MAC,” Wireless Communications & Mobile Computing,vol.9,no.4, pp. 469–488, 2009. [3] K. Bicakci and B. Tavli, “Denial-of-service attacks and coun- termeasures in IEEE 802. 11 wireless ... Networking Volume 2 011, Article ID 105675, 16 pages doi:10 .115 5/2 011/ 105675 Research Ar ticle Design and Implementation of a Lightweight Secur ity Model to Prevent IEEE 802. 11 Wireless DoS Attacks Mina ... time synchronization in the access point and wireless stations is included in the 8021 1MgmtAP-STSF and 8021 1MgmtSTA- STSF sublayers, respectively. The structure of the 8021 1-ACFNC-NIC for the access point...
Ngày tải lên: 21/06/2014, 05:20
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
802 11 wireless LAN fundamentals cisco press ebook kb
... Devices 802. 11 MAC Layer Operations Summary Chapter 3. 802. 11 Physical Layer Technologies Wireless Physical Layer Concepts 802. 11 Wireless LANs 802. 11b WLANs 802. 11a WLANs ... 2. 802. 11 Wireless LANs This chapter covers the following topics: Overview of wireless LAN (WLAN) topologies 802. 11 medium access mechanisms 802. 11 MAC layer operations 802. 11 frame formats 802. 11 ... 802. 11a WLANs 802. 11g WLANs CCA Summary Chapter 4. 802. 11 Wireless LAN Security Wireless Security Overview of Encryption Encryption in the 802. 11 Standard Authentication...
Ngày tải lên: 18/04/2014, 12:28
Báo cáo hóa học: " Research Article Connectivity-Based Reliable Multicast MAC Protocol for IEEE 802.11 Wireless LANs" doc
... 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 results ... University. References [1] IEEE, IEEE Wireless LAN Edition, IEEE Press, New York, NY, USA, 2003. [2] S. Choi and K. Choi, “Reliable multicast for wireless LAN, ” in Resource, Mobility, and Security Management in Wireless Networks ... broadcasting in wireless LANs,” IEEE Communications Letters, vol. 12, no. 2, pp. 146–148, 2008. [9] W Y. Choi, “Efficient reliable multicast MAC protocol for IEEE 802. 11 wireless LANs,” in Proceedings...
Ngày tải lên: 21/06/2014, 23:20
Báo cáo hóa học: " IEEE 802.11 Wireless LANs: Performance Analysis and Protocol Refinement" pot
Ngày tải lên: 23/06/2014, 00:20
An ninh mạng LAN không dây (IEEE 802.11) pptx
... WLAN 9/4/2012 5 Chuẩn IEEE 802. 11 chính thức được ban hành năm 1997. IEEE 802. 11 (chuẩn WiFi) biểu thị một tập hợp các chuẩn WLAN được phát triển bởi ủy ban chuẩn hóa IEEE LAN/ MAN (IEEE ... (IEEE 802. 11) . Thuật ngữ 802. 11x có thể được sử dụng để biểu thị một tập hợp các chuẩn đối với tất cả các chuẩn thành phần của nó. IEEE 802. 11 có thể được sử dụng để biểu thị chuẩn 802. 11, ... vụ trên chỉ ra rằng chuẩn IEEE 802. 11 không đề cập đến các dịch vụ an ninh khác như kiểm toán, cấp quyền, và chống từ chối. Các dịch vụ an ninh trong IEEE 802. 11 9/4/2012 15 Ba dịch...
Ngày tải lên: 09/03/2014, 09:20
IEEE 802.11 Tutorial pptx
... other uses. There are also other WLANs than IEEE 802. 11 that share the media. This would be somewhat equivalent to attempting to run IEEE 802. 3, IEEE 802. 5, IEEE 802. 12, and fiber distributed data ... other WLAN users of the media are often uncoordinated with IEEE 802. 11 and, in most cases, do not provide for any mechanism to share the media at all. Finally, there are other IEEE 802. 11 WLANs ... 1-2 Mbps, 3. DSSS at DSSS with 1-2 Mbps. ã IEEE 802. 11a ; PHY Layer - OFDM at UNII bands with 54 Mbps ã IEEE 802. 11b ; PHY Layer - DSSS at 2.4 GHz with 11Mbps 1.1.1 Goals ã to deliver services...
Ngày tải lên: 09/03/2014, 13:20
Báo cáo hóa học: " Research Article An IEEE 802.11 EDCA Model with Support for Analysing Networks with Misbehaving Nodes" ppt
... is dropped. Table 1 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 N C = 4, M equal to 4 or 7 (depending on ... by simulations and show that it outperforms three other IEEE 802. 11 models. The presented model can be used in game theoretical analysis of IEEE 802. 11 networks with misbe- having nodes (similarly to ... 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,...
Ngày tải lên: 21/06/2014, 11:20
Báo cáo hóa học: " Research Article Channel Resource Allocation for VoIP Applications in Collaborative IEEE 802.11/802.16 Networks" ppt
... 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 proto- cols, frame structures, and proposed to embed multiple IEEE 802. 16 ... and Networking 3 Building Building 802. 11 AP + 802. 16 SS 802. 11 AP + 802. 16 SS 802. 16 BS Figure 1: A typical scenario of the collaborative IEEE 802. 11 and IEEE 802. 16 networks. CFP CP CFP CP CFP ... Protocols 2.1. IEEE 802. 11 MAC Protocol. In the IEEE 802. 11 WLANs, the MAC layer defines the procedures for the IEEE 802. 11 stations to share a common radio channel. The legacy IEEE 802. 11 standard specifies...
Ngày tải lên: 21/06/2014, 11:20
802.11® Wireless Networks: The Definitive Guide phần 5 pptx
Ngày tải lên: 14/08/2014, 13:20
MOB Subject 6 - IEEE 802.11 standards Wifi operation
... data with other terminals. 16. In what has the IEEE 802. 11a standard a better potential than the IEEE 802. 11b or IEEE 802. 11g standard? The IEEE 802. 11a greater potential than other standards in ... cards 802. 11a and 802. 11b? No. This is not the same frequency band and not the same encoding: 5 GHz + OFDM for 802. 11a, 2.4 GHz + CCK for 802. 11b. 8. The same question with 802. 11a and 802. 11g? Not ... between the different families of protocol 802. 11? The data modulation: BPSK to 802. 11, CCK (Complementary Code Keying) for 802. 11b and OFDM for 802. 11a and 802. 11g. Master of Computer Science 1 -...
Ngày tải lên: 17/09/2012, 09:13
MOB Subject 7 –IEEE 802.11 standards Wifi performances
... environments 802. 11b /802. 11g. These mechanisms consist mainly, of a terminal 802. 11g operating in high flow, to persevere the radio medium in using slower reservation mechanisms, compatible with 802. 11b. Hypothesis: - ... layer of IEEE 802. 11b (bits). Figure 2: Format frame given sueh MAC layer of IEEE 802. 11 (in bytes). Table: Calculation of time sending and acquittal of 1500 bytes of data with 802. 11b. 2. When ... = 11 Mbit/s and p = 10 -6 . Master of Computer Science 1 - MOB Mobile Internet and Surrounding Fladenmuller Baey - IEEE 802. 11standards” 6/8 5. Calculation of the maximum flow of 802. 11g. 802. 11g...
Ngày tải lên: 17/09/2012, 09:13
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
