multiple access techniques ppt by rappaport

Ngày tải lên: 11/07/2014, 21:20

Ngày tải lên: 30/03/2014, 20:20

Ngày tải lên: 20/06/2014, 04:20

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Ngày tải lên: 21/06/2014, 01:20

Ngày tải lên: 21/06/2014, 22:20

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Ngày tải lên: 07/08/2014, 21:20

Ngày tải lên: 09/08/2014, 02:21

... given by: Master of Computer Science 1 - MOB Mobile Internet and Surrounding 1/12 Baey, Fladenmuller – Subject 5 MOB Subject 5 Access methods Static and dynamic access techniques 1. Static access ... peaks of the streetlights. The reduction of cell size accompanied by a reduction of the power radiated by both points of access by mobile devices. The microcells may be used in congested areas, ... methods Static and dynamic access techniques 1. Static access techniques 1.1 Space-division multiple- access (SDMA) When one seeks to cover a broad territory by a whole of cells of the same dimension, one considers...

Ngày tải lên: 17/09/2012, 09:13

... 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...

Ngày tải lên: 02/03/2013, 16:59

... 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...

Ngày tải lên: 10/12/2013, 17:15

... 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 ... restrict access to specific directories, and it’seasier to do that in the file .htaccess in the same directory. For apache to evenlook at .htaccess,you need to change the configuration file, however: by ... an adequate security level, • Ensure that the software is readable by all and writeable only by root. smbd should be executable by all. Don’tmakeitsetuid.Ifanindividual user runs it, it runs with their...

Ngày tải lên: 11/12/2013, 00:15

... 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 ... additional security by requiring an attacker to both guess the user’s password and steal the smart card or token that is used to access the system. Cisco routers don’t support token-based access control ... Associates, Inc. All rights reserved. 50 | Chapter 5: AAA Access Control Kerberos Authentication Kerberos is a network authentication protocol developed by MIT. Kerberos can pro- vide authentication only....

Ngày tải lên: 11/12/2013, 13:15

... 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 ... 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 ... 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...

Ngày tải lên: 11/12/2013, 23:15

... current •Summary MAGNETIC FIELD GENERATED BY OH LINES MAGNETIC FIELD GENERATED BY OH LINES MAGNETIC FIELD GENERATED BY OH LINES MAGNETIC FIELD GENERATED BY OH LINES 3-WIRE, 3-PHASE MV LINES 4-WIRE, ... implementation Jean Hoeffelman ELIA General field mitigation techniques General field mitigation techniques Metallic shielding Shielding by ferromagnetic materials Mainly effective neer the shield Expensive ... magnetic field levels generated by electrical installations and at studying possible techniques to reduce their emissions. The paper illustrates the direct experience acquired by CESI and ENEL in studying...

Ngày tải lên: 13/12/2013, 19:15

... 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...

Ngày tải lên: 17/12/2013, 11:15

... 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...

Ngày tải lên: 17/12/2013, 13:15

... carriage service providers and tenants in the area of building access. Key issues include: • Building access is being sought by multiple carriers and service providers to service tenants • ... Telecommunications Access Guideline 2002. August 2002 39 2. PROPOSED BUILDING ACCESS TERMS Relationship of building access agreement with existing regulation In many instances, a building access ... avoid disturbance to tenants. Access is best provided by a hinged-door of standard height to give reasonable access to the cables. In the current environment of multiple carriers and changing...

Ngày tải lên: 20/12/2013, 22:15

... Data Access Requirements Exercise 1: Identifying a Data Access Method for a Scenario (10 minutes) ! Identify data access requirements 1. Participate in small groups as assigned by the ... Microsoft ® SQL Server ™ and accessed by Microsoft Excel for querying and by the Web system for additional lookups. All data is entered through the Web. New orders are also sent by sending e-mail to ... easy access in the future. Solution A B Activity 9.4: Identifying Data Access Requirements In this activity, you will first identify the optimal data access...

Ngày tải lên: 21/12/2013, 06:16