MOBILE TELECOMMUNICATIONS PROTOCOLS FOR DATA NETWORKS phần 9 pot

... control Mobile support ATM switch Mobile support ATM switch LS PNNI (Q. 293 1 +) LS PVC ATM UNI ATM UNI MT MT Q. 293 1 + Q. 293 1 + BS1 BS2 ATM switch LS LS Regular ATM switch Switch host Q. 293 1 + Figure ... 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 tec...

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

... 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

... overhead for OFDM block guard time, synchronization, slot separation, and DPA control, a peak data rate of 2.1 296 (3.3 792 × 22/24 × 11/13 × 104/128) Mb s −1 is available for packet data services ... 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 f...

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

... side, delivering content for the destination client using Internet protocols. WTA ARCHITECTURE 99 WAE user agent Mobile client WAP gateway Firewall (optional) Internet Mobile network Man−machine ... entities, which contain either parsed or unparsed data. Parsed data is made up of characters, some of which form character data and some of which form markup. Markup encodes a descr...

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 ... further expands the market. In 199 0, the IEEE 802 standards groups for networking set up a specific group to develop a WLAN standard similar to the Ethernet standard. In 199 7, the IEEE 802.11 W...

Ngày tải lên: 13/08/2014, 22:21

... current table-driven protocols as well as on-demand protocols. 9. 1 TABLE-DRIVEN ROUTING PROTOCOLS In table-driven routing protocols, each node maintains one or more tables containing routing information ... communication end point, for instance, a laptop. It also supports intermediate devices, which form part of a communications link, for instance, modems. 168 ROUTING PROTOCOLS...

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 are ... the best route by 190 HANDOFF IN MOBILE AND WIRELESS NETWORKS information about the connection route. The performance of the FHRP is compared with a static network. In th...

Ngày tải lên: 13/08/2014, 22:21

... Chiang ( 199 7) Routing in clustered multihop. Mobile Wireless Networks with Fading Channel Proc. IEEE SICON 97 , April 199 7, pp. 197 –211. J. Chuang and N. Sollenberger ( 199 9) Wideband wireless data ... for ad-hoc wireless networks. Proc. IEEE ICC 98 , 199 8, pp. 171–175. I R. Chen, T M. Chen and C. Lee ( 199 8) Agent-based forwarding strategies for reducing location managemen...

Ngày tải lên: 13/08/2014, 22:21