MOB Subject 5 –Access methods Static and dynamic access techniques

MOB Subject 5 –Access methods Static and dynamic access techniques

Ngày tải lên : 17/09/2012, 09:13
... Baey, Fladenmuller – Subject 5 MOB Subject 5 Access methods Static and dynamic access techniques 1. Static access techniques 1.1 Space-division multiple- access (SDMA) When one seeks to cover a broad ... solutions are simple to introduce, but suffer from a very low yield. You lose the multiplexing gain! 3. Dynamic access techniques Pure Aloha: the principle of Aloha is to let talk to everyone when ... η a  1. 1.3 Time Division Multiple Access (TDMA) In the traditional local networks, a physical support is sharing between several users. It is thus important to define the access rules of the media...
  • 12
  • 672
  • 8
Multiple Access Protocols for Mobile Communications - GPRS, UMTS and Beyond

Multiple Access Protocols for Mobile Communications - GPRS, UMTS and Beyond

Ngày tải lên : 02/03/2013, 16:59
... Standards 46 2.6 Summary 48 3 Multiple Access in Cellular Communication Systems 49 3.1 Multiple Access and the OSI Layers 49 3.2 Basic Multiple Access Schemes 53 3.3 Medium Access Control in 2G Cellular ... with multiple access protocols,which govern access to these resources. The basic multiple access schemes are briefly described further below in this section, and the importance of the multiple access ... individual portions of its resources to support multiple communications, basic multiple access techniques (such as frequency-, time-, or code-division multiple access, with FDMA, TDMA, and CDMA as their...
  • 478
  • 664
  • 0
Tài liệu SONEPLEX SNMP MANAGEMENT ACCESS POINT pptx

Tài liệu SONEPLEX SNMP MANAGEMENT ACCESS POINT pptx

Ngày tải lên : 10/12/2013, 16:15
... Fiber Loop Converters, 192 T1/E1 circuits can be viewed. For larger networks, the GUI EMS allows multiple MAPs to be displayed at a single console. The MAP can be connected to the SNMP network ... Second, the MAP has an RS-232C interface that supports point-to-point protocol (PPP) for remote access using a modem. Forty-eight alarm contact closure inputs are provided by the MAP. These inputs ... proxy agent supports Telnet connections to each of the subscriber ports. This enables full remote access to the Soneplex platform craft interface. Description Application Soneplex MAP LAN Soneplex ECX Fractional...
  • 4
  • 284
  • 0
Tài liệu Data Management and Access Products ppt

Tài liệu Data Management and Access Products ppt

Ngày tải lên : 10/12/2013, 17:15
... system. 14 12/02 • 517 Data Management and Access Products www.adc.com • +1-952-938-8080 • 1-800-366-3891 EIA-530 PatchMate ™ Modules  FRONT ACCESS PANEL DTE FRONT ACCESS PANEL DCE TEST EQUIP BREAKOUT MODULE INDICATORS MONITOR CIRCUITS TEST CIRCUITS Breakout ... Module without LEDs  FRONTACCESS PANEL DTE FRONT ACCESS PANEL DCE TEST EQUIP BREAKOUT MODULE PMBP-530-1 (R) • Available for connecting, disconnecting, cross-connecting, accessing, patching, monitoring ... Management and Access Products www.adc.com • +1-952-938-8080 • 1-800-366-3891 EIA-232/V.24 PatchMate ™ Modules  FRONT PANEL ACCESS- 1 TEST EQUIP-2 MONITOR CIRCUITS FRONT PANEL ACCESS- 2 TEST EQUIP-1 INTERFACE MODULE Interface...
  • 68
  • 600
  • 0
Tài liệu Chapter-25-Basic network access-servers ppt

Tài liệu Chapter-25-Basic network access-servers ppt

Ngày tải lên : 11/12/2013, 00:15
... /home/grog/public_html,myweb pages, for read-only access. rsyncd accesses the module as user grog.Any host on the 256 address block starting with 223.147.37.0 can access the data. • Module tivo makes available ... virtual host, the server will access the main web pages (defined by the main DocumentRoot in entry /usr/local/etc/apache /access. conf ). Log file format httpd logs accesses and errors to the files ... 512 Jun 314:03 pub This enables read access to the pub directory and read-write access to the incoming subdirectory. • If you have a lot of files that are accessed relatively infrequently,it’spossible...
  • 24
  • 328
  • 0
Tài liệu Cisco Ios Access Lists pptx

Tài liệu Cisco Ios Access Lists pptx

Ngày tải lên : 11/12/2013, 00:15
... ready to cut in the new access list version, we use access list 2 as a new access group: line vty 0 4 access- group 2 in If you reserve two access list numbers per access list, you can switch ... example, we build access list 2: access- list 2 permit 192.168.30.1 access- list 2 permit 192.168.33.5 We then read in access list 2 via TFTP (note that we can define and maintain access lists on ... set map to actual access lists? Here is the mapping: access- list 1 permit 192.168.30.1 access- list 1 permit 192.168.33.5 access- list 1 deny 0.0.0.0 255.255.255.255 Cisco IOS Access lists ...
  • 227
  • 428
  • 0
Tài liệu AAA Access Control ppt

Tài liệu AAA Access Control ppt

Ngày tải lên : 11/12/2013, 13:15
... from multiple vendors usually choose RADIUSfor its interoperability. Finally, organizations with existing Kerberos access servers can configure their routers to use those servers to control access ... AAA, leaving the accounting details for Chapter 11. AAA access control provides much greater scalability and functional- ity than the basic access control methods discussed in Chapter 3. AAA can ... rights reserved. AAA Security Checklist | 51 Token-Based Access Control An authentication method that offers additional security is token-based access con- trol. With this method, each user has a...
  • 9
  • 655
  • 0
Tài liệu CUSTOMER SATISFACTION USING DATA MINING TECHNIQUES ppt

Tài liệu CUSTOMER SATISFACTION USING DATA MINING TECHNIQUES ppt

Ngày tải lên : 11/12/2013, 23:15
... criteria. Prediction level is quite satisfactory resulting that data mining techniques can be successfully combined with multiple criteria methods. Using other customer characteristics, such as ... patterns of information in data’ (Parsaye, 1997). Figure 2: Rule Induction process Data mining techniques are based on data retention and data distillation. Rule induction models (Figure 2) belong ... on the criteria (relative importance), • average satisfaction indexes. RULE BASED DATA MINING TECHNIQUES The objective of data mining is to extract valuable information from one’s data, to discover...
  • 4
  • 434
  • 1
Tài liệu CIRED 2003 - Round Table on Magnetic Field Mitigation Techniques ppt

Tài liệu CIRED 2003 - Round Table on Magnetic Field Mitigation Techniques ppt

Ngày tải lên : 13/12/2013, 19:15
... theory to practical implementation Jean Hoeffelman ELIA General field mitigation techniques General field mitigation techniques Metallic shielding Shielding by ferromagnetic materials Mainly effective ... substation and possible techniques to apply are: phase cancellation, conductive and ferromagnetic shielding, passive and active compensation. The methods used to carry out the mitigation techniques are ... cables A.S. Farag et alii Electric Power System Research 48 (1999) pp 193-209 - Elsevier [ 0] Shielding Techniques to Reduce Magnetic Fields Associated with Underground Power Cables G. Bucea, H. Kent CIGRE...
  • 31
  • 454
  • 0
Tài liệu Hotel Valuation Techniques pptx

Tài liệu Hotel Valuation Techniques pptx

Ngày tải lên : 15/12/2013, 06:15
... discussion of all of the techniques. Each method is illustrated by a unified case study that allows for meaningful comparison of the techniques. Case Study Example and Valuation Techniques The Major ... Cost-Approach (technique 9) $38,170,000 With the exception of room-rate multiplier (technique 2), the techniques produce values that are in a very narrow range, from $36,395,000 to $38,625,000. The ... The income approaches evolve from two different manners of thinking. The "cap-rate" techniques band of investment, market- derived capitalization, and EVA—are single-period models...
  • 20
  • 280
  • 0
Tài liệu Part 38 - ISA Server - Access Rule ppt

Tài liệu Part 38 - ISA Server - Access Rule ppt

Ngày tải lên : 17/12/2013, 11:15
... lên Rule Web Group KD và chọn Tab Schedule 14 of 29 Trong Access Rule Sources chọn duy nhất 1 thuộc tính là Internal Tương tự trong Access Rule Destinations chọn duy nhất 1 thuộc tính là External Trong ... truy cập được mọi trang Web 20 of 29 Tiếp tục chọn Next Trong Access Rule Sources chọn duy nhất 1 thuộc tính là Internal Tuy nhiên trong Access Rule Destinations ta không chọn thuộc tính là External ... 21 để truy cập các dịch vụ HTTP, HTTPS, FTP mà thôi. Trong Access Rule Sources chọn duy nhất 1 thuộc tính là Internal Tiếp đến trong Access Rule Destinations ta không chọn thuộc tính là External...
  • 29
  • 382
  • 3
Tài liệu ACCESS RULE ppt

Tài liệu ACCESS RULE ppt

Ngày tải lên : 17/12/2013, 13:15
... DNS Query để phân giải tên miền B1: ISA Management è Firewall Policy è New è Access Rule B2: Gõ “DNS Query” vào ô Access Rule Name è Next B2: Dòng name đặt tên “vnexpress” Chọn New, khai 2 ... chọn properties của rule vừa tạo è Schedule è Giai Lao B4: Chọn Allow Limmitted Web Access B5: Mở rule Web Access Only. Khảo sát các thông số Bài viết này thuộc quyền sở hữu Trung Tâm Đào Tạo ... Protocols” è Add è Common Protocol è DNSè OK è Next B5: Trong Access Rule Source” è Add è Networks è Internal è add è Close è Next B6: Trong Access Rule Destination” è add è Networks è External...
  • 14
  • 254
  • 2

Xem thêm