IP-Based Next-Generation Wireless Networks phần 3 ppt

... architecture (Section 2 .3. 1) . Acc ess to MWIF networks (Section 2 .3. 2) . MWIF session management architecture (Section 2 .3. 3) 2 .3. 1 Network Architectures Similar to the 3GPP and 3GPP2 networks, the MWIF ... rely on the Fig. 2 .32 Protocol stacks for dialup through 3GPP packet domain to an IP network Fig. 2 .33 Signaling flows for dialup through 3GPP packet domain to an IP network 8...

Ngày tải lên: 13/08/2014, 22:20

... after the test. P1: OTE/SPH P2: OTE SVNY285-Loo October 18, 2006 7:7 Testing your First Servlet 63 Figure 6.5. Screen on the client computer. 1. Copy the student.html file to the default html path ... you have problems.) 2. Copy the student.class file to the default servlet path of your web server. 3. Start the web browser in your computer. If you are using only one computer, type the followi...

Ngày tải lên: 07/08/2014, 17:21

... CHANNEL CODING MAP L a L c s L c p L + − L e Figure 3. 3 The soft-input/soft-output (SISO) decoder. The maxlog MAP approximation The expression (3. 23) for the MAP receiver contains transcendental ... bits and write L ≈ K  i=1 sign ( L i ) · min ( | L 1 | , , | L K | ) . (3. 14) 3 Channel Coding 3. 1 General Principles 3. 1.1 The concept of channel coding Channel coding is a common stra...

Ngày tải lên: 09/08/2014, 19:22

... 1 W (30 dBm) RF output (wireless device or amplifier) for various antenna gain values to stay within the maximum radiated power level for point-to-point links (e.g., 30 + 6 – 0 = 36 , or 30 + ... typical wireless networks. After the basics are laid out we will cover each of these in their own chapters, and include typical software and security configurations. Wireless at Home Wire...

Ngày tải lên: 10/08/2014, 12:21

... 74, 77, 84 sniffers, 1 53, 197–200, 198, 199, 200, 201, 33 4, 33 5 software, 1 63 175 SOHOWireless LANRoamer, 169, 33 4 soldering, 30 7 Southern California Wireless Users Group, 1 73 specific absorption ... information, 1 53 154 threats to security, 1 53 155 3Com, 84, 96 time server/time synchronization, Tardis, 248–249, 248, 33 0 TNC connectors, 63, 64, 30 9, 31 8 32 2, 31 8 32 2...

Ngày tải lên: 10/08/2014, 12:21

... using. 1.4 3GPP, 3GPP2, AND IETF In this section, we briefly describe the three main international organizations— 3GPP, 3GPP2, and IETF—that are defining standards for wireless IP networks. 1.4.1 3GPP The ... Project 2 (3GPP2). Medium access control (MAC) standard for cdma2000 spread spectrum systems. 3GPP2 C.S00 03- C, Version 1.0, Release C, May 2002. 13. 3rd Generation Partnership Proje...

Ngày tải lên: 13/08/2014, 22:20

... offered by 3G. Details of 3GPP security requirements and possible threats are discussed in 3GPP TS 21. 133 [20]. Before examining the 3GPP security architecture, definitions specified in 3GPP TS 33 .102 ... keys. 5 .3 SECURITY IN WIRELESS NETWORKS Many security issues in wireless networks are essentially the same as that in wired networks. However, the open nature of wireless chann...

Ngày tải lên: 13/08/2014, 22:21

... Protocol, 31 2 Traffic Processing, 32 0 IS- 136 , 8, 33 1 IS-2000, 26 IS-41, 8, 10, 33 1 Authentication, 33 4 33 5 Privacy, 33 5 33 6 Security, 32 9 33 6 IS-725, 33 2 IS-856, 26 IS-95, 8, 33 1 ISM bands, 4 KASUMI, 34 8, ... 194, 31 3, 31 5, 31 8, 35 0 Security Policy Database (SPD), 31 3, 32 0, 35 0 Selection and Distribution Unit (SDU), 174 Sequence Number (SQN), 34 4 34 6 S...

Ngày tải lên: 13/08/2014, 22:21

... transmission finishes. 52 WIRELESS LOCAL AREA NETWORKS 3. 11: What are the services provided by the IEEE 802.11 MAC? 3. 12: How does the CAM work in HIPERLAN Type 1? 3. 13: How does the DSA++ protocol ... done in IPv6? 3. 3: How is administration of workgroups designed? 3. 4: What peak bit rates are supported by OFDM? 3. 5: What is the role of WCDMA? 3. 6: What is the function of DP...

Ngày tải lên: 13/08/2014, 22:21

... points and PC wireless cards are used in wireless local area networks (WLANs). Access points function similar to base stations in a mobile wireless network. The RF range is optimized for wireless ... (SR/TLB). www.syngress.com Figure 3. 2 Transparent Bridging Transparent Bridge Ethernet Segment 1 Ethernet Segment 2 152_wan_ 03 6/21/01 3: 18 PM Page 83 TCP/IP and the OSI Model •...

Ngày tải lên: 14/08/2014, 14:20