'Packet data' presentation slideshows

Wireless Overview Protocols and Threat Models

Wireless Overview Protocols and Threat Models. Dan Veeneman dan@decodesystems.com www.decodesystems.com/blackhat/bh-1.ppt. Focus of this talk. Overview of available commercial technologies Skipping 802.11 U.S.-centric Terrestrial networks Additional information in second briefing.

986 views • 85 slides

Remote Monitoring (RMON)

761 views • 54 slides

TLEN 5510

754 views • 51 slides

CSI 5171 (95.533) Network Architectures, Services, Protocols and Standards

General Packet Radio Service (GPRS) Miao Lu (mlu@site.uottawa.ca) Nancy Samaan (nsamaan@site.uottawa.ca) SITE, Ottawa University. CSI 5171 (95.533) Network Architectures, Services, Protocols and Standards. Agenda. Introduction Part I GPRS Architecture Part II

589 views • 46 slides

Outline

Outline. UMTS architecture and main features (FDD mode) Discussion of packet performance issues Present concepts for support of packet-switched services UMTS evolution Conclusions. On the Performance of UMTS Packet Data Services. Wolfgang Granzow Ericsson Research Corporate Unit

710 views • 45 slides

Call Admission Control

Call Admission Control. Carey Williamson. Department of Computer Science University of Calgary. The CAC Function: Everything you ever wanted to know but were afraid to ask. Carey Williamson. Department of Computer Science University of Saskatchewan. Introduction .

866 views • 43 slides

Chapter 3 outline

3.1 transport-layer services 3.2 multiplexing and demultiplexing 3.3 connectionless transport: UDP 3.4 principles of reliable data transfer. 3.5 connection-oriented transport: TCP segment structure reliable data transfer flow control connection management

433 views • 36 slides

W-CDMA AIR INTERFACE FOR 3G SYSTEMS

W-CDMA AIR INTERFACE FOR 3G SYSTEMS . By Medapati, Sai Raghavendra Reddy Gadige, Raghunath. INTRODUCTION What is W-CDMA? Stands for Wideband Code Division Multiple Access

578 views • 30 slides

Data Services & Applications

Data Services & Applications. Agenda. Market requirements What is TETRA standard for Data? How is TETRA addressing current market requirements? What are future market requirements? Summary. What are the customer requirements?. Improve operating efficiency, productivity

503 views • 26 slides

PPR: Partial Packet Recovery

PPR: Partial Packet Recovery. Brad Karp UCL Computer Science. CS 4038 / GZ06 23 rd January, 2008. Is it efficient to retransmit entire packet? How much of packet is actually corrupted in practice?. Packet Corruption in Wireless MACs. 802.11 and 802.15.4 use per-packet CRC

368 views • 22 slides

Architecture of Network Implementation

Architecture of Network Implementation. Reading: Chapters 3 and 4. Layer-Based Communication Models. End systems. Intermediate system. End systems. Anwendung. Anwendung. Application. Application. (N+1)-Protocols. Instance (N+1). Instance (N+1). Instance (N+1). Instance (N+1).

317 views • 21 slides

CALEA and J-STD-025 revisions

CALEA and J-STD-025 revisions. CALEA. Communications Assistance for Law Enforcement Act (1994) Standardized access to telecommunications systems using new technologies. CALEA. Call-identifying information

377 views • 21 slides

Wide Area Networks

Wide Area Networks. Computer Networks. Motivation. Connect multiple sites Span geographic distances Cross public right-of-way streets buildings railroads. Building blocks. Point-to-point long distance connections leased circuits provided by telecommunications companies Packet switches

338 views • 21 slides

Security

Security. Defending Intellectual Property. Agenda. Hacker Anatomy Risks Categories of Security Tools. Anatomy of a Hacker. Motives Challenge / Fame Disgruntled Gamer Cost / experience Profit Skill Novice Knows how to copy a disk or get hacks off the net Geek

360 views • 21 slides

CSE 30264 Computer Networks

325 views • 20 slides

How the WWW & the Internet Work or "I didn't know they aren't the same thing."

How the WWW & the Internet Work or "I didn't know they aren't the same thing.". Instructor: Joseph DiVerdi, Ph.D. How the Internet Works. The Internet is a communications medium through which information is transferred between computers

327 views • 20 slides

Evolution & Requirements for DPI in Network Security Infrastructure

456 views • 13 slides

On Construction of Rate-Compatible Low-Density Parity-Check (RC-LDPC) Codes

On Construction of Rate-Compatible Low-Density Parity-Check (RC-LDPC) Codes. by Mohammadreza Yazdani and Amir H. Banihashemi Department of Systems and Computer Engineering Carleton University Ottawa, Ontario, Canada. Outline. Introduction and Motivation

287 views • 13 slides

What Can you CRM Do for You? Services Portfolio

What Can you CRM Do for You? Services Portfolio. CDG, International Roaming Team (IRT) Tampa, Florida 13 June 2007 Sara Aab Libby Mackay Federico Nienstadt Ricardo Sarti Randall Todd. Contents. What is a CRM? What can my CRM do for me? Provide Contacts

211 views • 13 slides

Report on Progress of ISSI Architectures (PSAWG/06-070)

Report on Progress of ISSI Architectures (PSAWG/06-070). T. Hengeveld, PSAWG Chair Denver, CO, June 2006. Status vs San Diago Schedule. Supplementary Data Architecture. Architecture Completed on Schedule

280 views • 7 slides