products services and technologies

... Applications and Services Wireless Application Protocol (WAP) 263 Alessandro Andreadis and Giovanni Giambene 9.1 Introduction to WAP Protocol and Architecture 9.1.1 WAP-based Multimedia Services: ... 278 279 280 282 282 286 290 293 Alessandro Andreadis and Giovanni Giambene 10.1 Evolution From Short to Multimedia Message Services 10.2 MMS Architecture and Standard 293 294 Contents 10.2.1 Detailed ... access technologies across many frequency bands  The ability to move across hybrid access technologies will be an important requirement, which calls for efficient and fast vertical handovers and...

Ngày tải lên: 14/08/2014, 12:20

... (and audio) compression standard [35] to be produced by the combined standardization efforts of ITU’s Video Coding Experts Group (VCEG) and ISO’s Motion Pictures Experts Group (MPEG) The standard, ... (discrete and continuous media), and the multimedia-based services (non real-time and real-time) The requirements of the multimedia services for preserving the intra-media and inter-media synchronizations ... delay and delay variation (jitter); and (iii) recover lost packets In Section 3.6, we discuss why TCP is not suitable for real-time continuous media Emerging Wireless Multimedia: Services and Technologies...

Ngày tải lên: 14/08/2014, 12:20

... SETUP command This allows a streaming client to drastically perform adaptations according to bandwidth availability 4.4.3.6 GET_PARAMETER and SET_PARAMETER: Parameter Handling GET_PARAMETER and SET_PARAMETER ... integer timestamp increments for the typical 24 (HDTV), 25 (PAL), and 29.97 (NTSC) and 30 (HDTV) Hz frame rates and 50, 59.94 and 60 Hz field rates While 90 Hz is the recommended rate for future ... format for 12-bit DAT, 20- and 24-bit linear sampled audio RTP payload format and file storage format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) audio codecs RTP...

Ngày tải lên: 14/08/2014, 12:20

... number of research opportunities and areas which include among others:      context-aware and personalized applications and services; adaptive applications and services that can self-configure; ... provided via two mechanisms: the user priority and the frame lifetime Emerging Wireless Multimedia: Services and Technologies Edited by A Salkintzis and N Passas # 2005 John Wiley & Sons, Ltd 122 ... downlink (DL) and uplink (UL) data transmission and random access (see Figure 5.3(b)) All data from both AP and the MTs is transmitted in dedicated time slots, except for the random access channel...

Ngày tải lên: 14/08/2014, 12:20

... technological challenges ahead, mostly Group A Group B Group C Group D Band Band Band Band #1 #2 #3 #4 Band Band Band Band Band Band Band Band Band # # # # # # 10 # 11 # 12 # 13 3432 3960 4488 5016 MHz MHz ... specified Mode is mandatory and operates in frequency bands 1–3, i.e Group A Mode is optional and uses seven frequency bands, three bands from group A and four bands from group C Groups B and D are reserved ... During Handover The demand for multimedia services in mobile networks has raised several technical challenges, such as the minimization of handover latency In this context, soft and softer handover...

Ngày tải lên: 14/08/2014, 12:20

... multimedia services, describing the overall QoS concept, the policy based QoS control scheme and its Emerging Wireless Multimedia: Services and Technologies Edited by A Salkintzis and N Passas ... teleservices and supplementary services, for compatibility, the UMTS architecture emphasizes service capabilities, that is, parametric bearer services and mechanisms required to implement services ... 8.5 for the acronyms) The transport and endpoint layer initiates and terminates the signaling needed to set up and control sessions and provides bearer services and support for media conversions...

Ngày tải lên: 14/08/2014, 12:20

... Wireless Multimedia Applications and Services Wireless Application Protocol (WAP) Alessandro Andreadis and Giovanni Giambene 9.1 Introduction to the WAP Protocol and Architecture WAP Forum was ... costs and to increase the subscriber base both by improving existing services, such as interfaces to voice-mail and prepaid systems, and by facilitating an unlimited range of new value-added services ... Wireless Application Environment (WAE) and offers operators and service providers an environment for the development and execution of applications and services targeted at a wide variety of wireless...

Ngày tải lên: 14/08/2014, 12:20

... in the MMS reference architecture WSDL (Web Services Description Language) and HTTP The first two technologies, SOAP and XML, are part of the OSA standard, defined by W3C XML allows a general data ... common runtime library features and Web services infrastructure, including HTTP, TCP/IP, XML and SOAP 11 Instant Messaging and Presence Service (IMPS) John Buford and Mahfuzur Rahman 11.1 Introduction ... collaboration Emerging Wireless Multimedia: Services and Technologies Edited by A Salkintzis and N Passas # 2005 John Wiley & Sons, Ltd 320 Instant Messaging and Presence Service (IMPS) A user has...

Ngày tải lên: 14/08/2014, 12:20

... (OTA), m-shopping and pay in real and virtual Points of Sale (POS) With today’s mobile and wireless networking technologies such as GPRS, UMTS and WiFi, the Internet and its services are available ... data based and replaced by Voice-over-IP (VoIP) Moving towards all-IP networks means that applications and services over mobile devices will increase in number and importance, and the demand for ... payment for such services is a must The mobile services and the user have set demanding requirements such as real-time payment processing and interaction with a wide variety of virtual and real points...

Ngày tải lên: 14/08/2014, 12:20

... data types (ADTs) and core services through which a service provider can provide location application services and content Core services include:      location utilities services; directory ... presentation services; gateway services, and route determination services The OpenLS standard [32] aims at the development of interface specifications that facilitate the use of location and other ... Hadjiefthymiades and L Merakos Using XML and related standards to support location based services, in Proc SAC’2004, 19th ACM Symposium on Applied Computing, Web Technologies and Applications...

Ngày tải lên: 14/08/2014, 12:20

... 11/3/05 9:53 PM Page 24 CHAPTER ■ SHAREPOINT PRODUCTS AND TECHNOLOGIES OVERVIEW Topics and Areas SPS aggregates and organizes content through the use of topics and areas Topics are branches on a tree ... 11/3/05 9:53 PM Page 27 CHAPTER ■ SHAREPOINT PRODUCTS AND TECHNOLOGIES OVERVIEW Stand-Alone Server The stand-alone server is the simplest deployment option and the one that you will use throughout ... Shared Services Shared Services allow you to set up a single installation to manage user information, search services, alert services, and single sign-on services Because these services are likely...

Ngày tải lên: 05/10/2013, 14:20

... considerations and technological aspects of delivering broadband services to business, public and residential users 4 Broadband Services Given the prevailing assumptions that the demand for broadband services ... broadband applications and services and the social and legal setting for its deployment and expected evolution The book starts by introducing the various applications and services available today and ... Current broadband and home entertainment markets 2.2.1 Television 2.2.2 Mobile 2.2.3 Consumer products 2.3 What drives broadband? 2.4 Future broadband entertainment services 2.4.1 Television and video...

Ngày tải lên: 03/06/2014, 01:31

... WITH WEB SERVICES AND MOBILE DEVICES //declare connection, command and other related objects SqlConnection conReport = new SqlConnection(cnString); SqlCommand cmdReport = new SqlCommand(); SqlDataReader ... reader and populate the dataset cmdReport.CommandType = CommandType.Text; cmdReport.Connection = conReport; cmdReport.CommandText = "Select TOP * FROM Dbo Itinerary"; //read data from command object ... using System; System.Web; System.Web .Services; System.Web .Services. Protocols; 8547ch06final.qxd 8/30/07 3:50 PM Page 231 CHAPTER s REPORTING WITH WEB SERVICES AND MOBILE DEVICES [WebService(Namespace...

Ngày tải lên: 05/10/2013, 08:48

... can calculate a set of (RAND, SRES) 2tuples in advance, store them in the HLR, and send them on demand to the requesting VLR The VLR stores this set (RAND[n], SRES[n]) and uses a new 2-tuple from ... blocks of the TCH/F9.6 and TCH/H4.8 channels to the standard format of 456 bits Thus, blocks of these channels can also be processed in a standardized way (interleaving, etc.), and the amount of redundancy ... transmitted (e.g a handover command), the current data block n is replaced by the convolutional coded FACCH message, and it is interleaved in a block-diagonal way with the data blocks (n 1) and (n 1) of...

Ngày tải lên: 17/10/2013, 21:15

... failure DCCH MS ! N 00101111 Handover access DCCH MS ! N ± Handover command DCCH N ! MS 00101011 Handover complete DCCH MS ! N 00101100 Ciphering Handover Message Handover failure Channel release ... Control (CC), Supplementary Services (SS), and Short Message Service (SMS) Call control handles all tasks related to setting up, maintaining and taking down calls The services of call control are ... encryption and decryption on the data channel The RR sublayer provides several services at the RR-SAP to the MM sublayer These services are needed to set up and take down signaling connections and to...

Ngày tải lên: 20/10/2013, 15:15

... categories: ² Handover because of more favorable path loss conditions ² Mandatory intercell handover ² Mandatory intracell handover 200 Roaming and Switching Table 8.1 Threshold values for the GSM handover ... standardizing only the signaling interface that de®nes the processing of the handover and through transferring the handover decision to the BSS The GSM handover is thus a network-originated handover ... its participation in the handover decision The MSC causes the new BSS to prepare a channel for the handover, and frees the handover to the mobile station (handover command), as soon as the reservation...

Ngày tải lên: 20/10/2013, 15:15

... interoperability is an initiative of Sun and Microsoft The goal is to produce web services consumers and producers that support platform indepen- dence, and then to test and deliver products to market that interoperate ... services clients can access and consume WCF web services • WCF web services clients can access and consume WSIT web services Sun is building WSIT on the Java platform and Microsoft is building ... clients and web services, all running on different platforms and at various locations on the Internet HTTP is a familiar request -and response standard for sending messages over the Internet, and...

Ngày tải lên: 23/10/2013, 23:15

... transparent and nontransparent services These bearer services carry data between the MT of the mobile station and the Interworking Function (IWF) of the MSC For the realization of bearer services, ... network transition switching unit and carried as a voiceband signal in the PSTN to the analog terminal After these introductory remarks, the GSM data and teleservices and their realization are discussed ... Communication and Networking Figure 9.1: GSM reference con®guration signals in GSM networks are transported in standard ISDN format with a bit rate of 64 kbit/s In comparison, realizing data services and...

Ngày tải lên: 24/10/2013, 13:15

... supply probability, and availability, and it can also be characterized with nontechnical criteria like ease of operation and comfort of subscriber access or even hot-line and support services Considering ... response times, etc.), and utilization of network components (hardware and software) The objective is on one hand to ensure a good utilization of resources and on the other hand to recognize trends ... Failure and con®guration management are speci®ed only for the BSS; the reasons are that on one hand the databases (HLR, VLR) were assigned to accounting management, and on the other hand standardization...

Ngày tải lên: 24/10/2013, 13:15

... additional non-standardized services Examples are access to information databases, messaging services (via store -and- forward mailboxes), and transaction services (e.g credit card validations and electronic ... Switched and Circuit Switched Services In a GSM/GPRS network, conventional circuit switched services (GSM speech, data, and SMS) and GPRS services can be used in parallel The GPRS standard de®nes ... with the SGSN 11.2 Services 11.2.1 Bearer Services and Supplementary Services The bearer services of GPRS offer end-to-end packet switched data transfer to mobile 11.2 245 Services subscribers...

Ngày tải lên: 28/10/2013, 20:15