MOBILE TELECOMMUNICATIONS PROTOCOLS FOR DATA NETWORKS phần 7 pdf

... are specified for use by MAC sub- layer entities. ON-DEMAND ROUTING PROTOCOLS 173 Broch et al. found DSRP to perform the best of four protocols simulated. However, Broch simulated networks of 50 ... other Blue- tooth devices; • quality of service management for higher layer protocols. 172 ROUTING PROTOCOLS IN MOBILE AND WIRELESS NETWORKS request packet propagates hop-by-hop...

Ngày tải lên: 13/08/2014, 22:21

... software. 7. 1 XML DOCUMENT XML documents are made up of storage units called entities, which contain either parsed or unparsed data. Parsed data is made up of characters, some of which form character data ... RDF data model can therefore resemble an entity-relationship diagram. The RDF data model, however, provides no mechanisms for declaring these properties, nor does it provide...

Ngày tải lên: 13/08/2014, 22:21

... architecture of mobile and wireless networks, their protocols, and quality-of- service (QoS) issues. MOBILE TELECOMMUNICATIONS PROTOCOLS FOR DATA NETWORKS 2 MOBILE AGENT PLATFORMS AND SYSTEMS • ... by the networks and protocols. Mobile networks must function efficiently by using their protocols, performing routing and handoff for mobile users. This book focuses on...

Ngày tải lên: 13/08/2014, 22:21

... data access at 384 kb s −1 nominal data rates for macrocellular wire- less access. WCDMA provides simultaneous voice and data services. WCDMA is the radio interface technology for Universal Mobile ... settings, and scheduling information and address books. The profile directory is a generic database for maintaining user information, which includes application-specific data. Custo...

Ngày tải lên: 13/08/2014, 22:21

... the frame configuration information, the connection setup, the allocation information, the request information, and the data to all mobile devices. The information and the data can be broadcast using a ... suitable form for the wireless medium. Encryption is performed for confidentiality while fragmentation and Forward Error Correction (FEC) coding functions are added for better pro...

Ngày tải lên: 13/08/2014, 22:21

... the frame configuration information, the connection setup, the allocation information, the request information, and the data to all mobile devices. The information and the data can be broadcast using a ... and that data conforming to an abstract schema can be converted to and from XML for transport. The Working Group should propose a mechanism for serializing data representing no...

Ngày tải lên: 13/08/2014, 22:21

... of profile information by each server/gateway/proxy is hard to predict. Therefore, gateways/proxies should forward all profile information to the server. Any requests for profile information that ... not ideal for slow networks. An alternative is to send only the changes. The CC/PP exchange protocol does not depend on the profile format that it conveys. Therefore, another profile format besid...

Ngày tải lên: 13/08/2014, 22:21

... hops. 180 ROUTING PROTOCOLS IN MOBILE AND WIRELESS NETWORKS Practice problems 9.1: What is an ad hoc network? 9.2: What are the two categories of routing protocols for ad hoc networks? 9.3: What ... 9 Routing protocols in mobile and wireless networks Learning objectives After completing this chapter, you are able to • demonstrate an understanding of routing protocols in m...

Ngày tải lên: 13/08/2014, 22:21

... 205 Table 11.1 Required number of VCs for different schemes N 1 N 2 N 3 Total r = 1 11 .78 24 0 35 .78 r = 3 20.6 10 54 84.6 r = 5 22.8 5 66 93.8 r =∞ 23.56 0 72 97. 56 VCT 1155 0 0 1155 the requirements ... bandwidth of existing mobile phone systems is sufficient for data and voice, but it is still insufficient for real-time multimedia traffic. ATM has more efficient networking techn...

Ngày tải lên: 13/08/2014, 22:21

... Assistant (PDA) 17, 74 , 141, 1 57 Physical Layer (PHY) 145 piconet 1 47, 155, 156 piggyback (PGBK) 60, 62, 63 Platform for Internet Content Selection (PICS) 77 78 , 116 Platform for Privacy Preferences ... Handoff in hybrid mobile data networks. IEEE Personal Communications, 7( 2), 34– 47. V. D. Park and M. S. Corson (19 97) A highly adaptive distributed routing algorithm for...

Ngày tải lên: 13/08/2014, 22:21