MOBILE TELECOMMUNICATIONS PROTOCOLS FOR DATA NETWORKS pot

... 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 the newest technology for mobile ... of topics from mobile agents and wireless LANs to wireless application protocols, wireless architecture, and mobile networks. This book proposes a comprehensive design...

Ngày tải lên: 01/06/2014, 09:39

... [6] is nevertheless too expensive for our platform. Depend- ing on the implementation, AES was either too big or too slow for SPINS: Security Protocols for Sensor Networks Adrian Perrig, Robert ... and TESLA. SNEP provides data confidentiality, two-party data authentication, integrity, and freshness. TESLA provides au- thentication for data broadcast. We bootstrap the securit...

Ngày tải lên: 14/03/2014, 22:20

... However, TESLA is not de- signed for the limited computing environments we encounter in sensor networks for the following three reasons: SPINS: SECURITY PROTOCOLS FOR SENSOR NETWORKS 527 and we then ... security protocols optimized for sensor networks: SPINS. SPINS has two secure building blocks: SNEP and µTESLA. SNEP includes: data confidentiality, two-party data authenti...

Ngày tải lên: 14/03/2014, 22:20

... Pieces 160 Writing Data Out to Text Format 162 Manually Working with Delimited Formats 163 JSON Data 165 XML and HTML: Web Scraping 166 Binary Data Formats 171 Using HDF5 Format 171 Reading Microsoft ... Indexing 151 Panel Data 152 6. Data Loading, Storage, and File Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Reading and Writing Data in Text For...

Ngày tải lên: 24/03/2014, 00:21

... integrates data from such independent sources as Reuters, the MIT alumni database, Dataline, Disclosure, and Finsbury. Queries which require access to different data sets in different native formats ... Madnick 2 Why Not One Big Database? Principles for Data Ownership Abstract: Results of this research concern incentive principles which drive information sharing and affect database va...

Ngày tải lên: 30/03/2014, 22:20

... on the perfor- mance after network coding and ignore the channel coding used in each packet. Thereby we assume each terminal transmits one bit for itself and relays one bit for others. For comparison ... the dest ination. For each network size, we choose three fixed number d =5,6,7 and two assembles of the parameters s and l are selected for every d. Therefore, totally we have perfo...

Ngày tải lên: 20/06/2014, 22:20

... experiments are performed assuming various environments and deployment scenarios to examine the performance of femtocell networks. The results are compared with Monte Carlo simulations for verification ... 1997. [3] F. Graziosi, L. Fuciarelli, and F. Santucci, “Second order statistics of the SIR for cellular mobile networks in the presence of correlated co-channel interferers,” in Pro...

Ngày tải lên: 21/06/2014, 18:20

... scenario interacts with the geometry database, which contains models and animations for all of the activities supported by the system. The position data specifies a location, for each frame, for all of the actors ... description data contains information pertaining to the activities performed by each actor for various frame ranges as well as the temporal resolution of the acquisiti...

Ngày tải lên: 21/06/2014, 20:20

... 1992 to 2001, he was with Nortel Networks, where he conducted, led, and directed system- level performance modeling and analysis of wireless communica- tion networks and systems. In January 2002, ... concept that is being actively studied in multihop-augmented networks is multiuser coop- erative diversity, where several terminals form a kind of coali- tion to assist each other with the t...

Ngày tải lên: 22/06/2014, 22:20

... region for the queries and the generated data. Therefore, it enables the gathering of all of the generated data in the network and permits the performing of certain data optimizations (e.g., data ... several data dissemination protocols have been proposed for sensor networks, e.g., Directed Diffusion [5], they all suggest that each mobile sink needs to periodically flood its...

Ngày tải lên: 20/06/2014, 20:20