Tài liệu Wireless Format ppt

... current version is 0. The current version is 0. Type Type Type of information: management (00), control (01), or data Type of information: management (00), control (01), or data (10). (10). Subtype Subtype Defines ... 2004 Figure 15.8 CSMA/CA and NAV McGraw-Hill © The McGraw-Hill Companies, Inc., 2004 Figure 15.9 Frame format McGraw-Hill © The McGraw-Hill Companies, Inc., 2004 Table 15...

Ngày tải lên: 17/02/2014, 15:20

... using the access point’s MAC address as the source Wireless Security, Advanced Wireless LAN Hacking Advanced 802.11 Attack Wireless Best Practices Wireless Hacking Tools wlan-jack, essid-jack, monkey-jack, ... special symbols to indicate that wireless access is nearby so that others do not need to go through the trouble of the same discovery. What Will Be Covered Wireless net...

Ngày tải lên: 22/01/2014, 15:20

... WHITE PAPER Wireless Switching Office Fiber Cable Management The Advantage of Wireless Switching Office Fiber Cable Management Fiber is on the increase within wireless switching centers ... the traditional wireless switching office. With any increase in fiber, developing and maintaining good fiber cable management quickly becomes an important consideration. As wireless switching .....

Ngày tải lên: 24/01/2014, 11:20

...  Wireless Là Gì ?  Lịch Sử Ra Đời  Tính Năng:  Lợi Ích:  Hạn Chế: Wireless Là Gì ?  Là một loại mạng máy tính nhưng việc kết ... truyền dữ liệu thấp hơn nhiều so với tốc độ của hầu hết các mạng sử dụng cáp hiện thời.  Năm 1992, ra đời WLAN sử dụng băng tần 2.4Ghz. Mặc dầu những sản phẩm này đã có tốc độ truyền dữ liệu cao ... Engineers(IEEE) đã phê chuẩn sự ra đời của ch...

Ngày tải lên: 13/12/2013, 02:15

... 802.11 Wireless Network Site Surveying and Installation  802.11 Wireless LAN Fundamentals  Deploying License-Free Wireless Wide-Area Networks  The Business Case for Enterprise-Class Wireless ... Vulnerabilities and Threats  WLAN Security Authentication and Encryption  Unified Wireless Deployment  Wired and Wireless IDS  WLAN Security Best Practices © 2006 Cisco Systems, In...

Ngày tải lên: 22/12/2013, 15:15

... interprets the received signals and extracts the information transmitted. Various modulation tech- niques are used to convert signals to suitable formats. For example, most modems, with medium-speed ... that contain wide dynamic ranges at high frequencies. Signals have to be processed in suitable formats to make them ready for transmission. Issues such as noise, power, linearity, frequency, ....

Ngày tải lên: 23/12/2013, 01:16

... 194 4.2.2 Wireless Bridges, Routers, Gateways, and Repeaters 196 4.2.3 Wireless Data Loggers 198 4.2.4 Power Considerations of Wireless Instruments 199 4.2.5 Other Wireless Instrument Issues 202 4.3 Wireless ... Information Management 176 3.7.1 Network Management 176 3.8 Conclusion 177 4 Wireless Instrument and Sensor Networks 179 4.1 Wireless Sensor Architecture and Networ...

Ngày tải lên: 23/12/2013, 01:16

... whole information string – in other words, there are several small gaps instead of one large hole. Since error correction can piece together information more effectively with small gaps in the information, ... products to protect especially sensitive information. However, few WLANs are likely to be carrying security-sensitive information. Perception: How can I trust wireless communications...

Ngày tải lên: 19/01/2014, 20:20

... Disabled Composite Default screen P1: FDJ book CRC -Wireless November 8, 2001 10:33 Char Count= 252 1 Wireless Network 1.1 Introduction First-generation (1G) wireless networks were established in the late ... Intelligent Network Wireless technology has gained universal acceptance, with the number of wireless subscriptions already exceeding the number of fixed lines in many countries....

Ngày tải lên: 20/01/2014, 01:20