WAN technologies II.

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Instructor, PACE-IT Program – Edmonds Community College

Areas of expertise Industry Certifications

PC Hardware

Network Administration

IT Project Management

Network Design

User Training

IT Troubleshooting

Qualifications Summary

Education

M.B.A., IT Management, Western Governor’s University

B.S., IT Security, Western Governor’s University

Entrepreneur, executive leader, and proven manger with 10+ years of experience turning complex issues into efficient and effective solutions.

Strengths include developing and mentoring diverse workforces, improving processes, analyzing business needs and creating the solutions required— with a focus on technology.

Brian K. Ferrill, M.B.A.

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WAN technologies II.PACE-IT.

– GSM/CDMA WAN connections.

– WiMAX WAN connections.

– Satellite WAN connections.

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GSM/CDMA WAN connections.WAN technologies II.

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Cellular carriers use one of two methods for connecting devices to their networks— and they are not compatible.

Currently in the United States, AT&T and T-Mobile use Global System for Mobile (GSM) to connect their devices to their networks. Sprint and Verizon use Code Division Multiple Access (CDMA) as their method of connecting to networks.

The majority of the rest of the world utilizes GSM as the method of accessing cellular networks.

GSM/CDMA WAN connections.WAN technologies II.

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GSM/CDMA WAN connections.WAN technologies II.

– Cellular networking.» Cellular networking involves using the cellular

phone system for more than just phone calls.» 1G cellular was only capable of voice

transmissions.» 2G cellular added simple data transmission

capability (text).• 2G EDGE offered some basic cellular networking

connectivity and was a stopgap between 2G and 3G.

» 3G cellular is the beginning of cellular WAN networking.

» 4G is still an emerging technology; it currently consists of LTE and WiMAX.

» HSPA+ (Evolved High Speed Packet Access): a stopgap between 3G and 4G.

• The current standards allows for up to a maximum data rate of 84 Mbps.

» LTE (Long Term Evolution): uses an all-IP based core with high data rates. It is compatible with 3G and WiMAX.

• The current standards allow for up to 300 Mbps in download speed and up to 75 Mbps in upload speed.

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WiMAX WAN connectionsWAN technologies II.

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WiMAX WAN connections.WAN technologies II.

– World Wide Interoperability for Microwave Access (WiMAX) networking.

» WiMAX was originally developed as a last mile alternative for use when DSL or cable was not available.

• Provides an alternative broadband connection to a fixed location.

» It uses microwave transmissions as an over-the-air method to transmit voice and data.

• Requires a line of sight between relay stations.» WiMAX can be used to cover significant geographic

distances.• Many municipalities are exploring the use of WiMAX

as a means of providing reasonably priced broadband to their citizens.

» It is often considered to be a type of 4G technology because it is compatible with LTE networks.

• WiMAX is not compatible with 3G type networks.

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Satellite WAN connections.WAN technologies II.

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Satellite WAN connections.WAN technologies II.

– Microwave satellite networking.» Uses microwave transmissions as an over-the-air

method to transmit voice and data.» Can be an effective means of extending networks

into places that are hard to reach.» Microwave radio relay is the method of

transmitting through the atmosphere. • Requires line-of-site relay stations, but can cover

vast distances.• The distances covered by the satellite network

may lead to latency problems.» A communication satellite (comsat) forms part

of the microwave relay network.» Comsats may use a variety of orbits.

• Molniya, geostationary, low-polar, or polar orbits are all used for microwave radio relay networks.

» Low-polar and polar orbits are used to boost the microwave signal before sending the signal back to Earth.

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What was covered.WAN technologies II.

GSM and CDMA are the two main methods of connecting cellular devices to cellular networks and they are not compatible. True WAN cellular connections were not available until HSPA+, which is a stop gap measure between 3G and 4G networking. The emerging standard for cellular networking is 4G, which currently consists of LTE and WiMAX.

Topic

GSM/CDMA WAN connections.

Summary

WiMAX was originally designed as a last mile solution for areas in which DSL and cable were not available. It utilizes microwave signals between line-of-sight relay stations to deliver broadband traffic to a fixed location. It is compatible with LTE so it is considered a 4G technology. It can span significant geographic distances.

WiMAX WAN connections.

Satellite uses microwave radio transmissions as a method of transmitting data over the air. Uses microwave radio relays and satellites to span large distances that are still line of site. These vast distances often lead to latency in the transmissions.

Satellite WAN connections.

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THANK YOU!

This workforce solution was 100 percent funded by a $3 million grant awarded by the U.S. Department of Labor's Employment and Training Administration. The solution was created by the grantee and does not necessarily reflect the official position of the U.S. Department of Labor. The Department of Labor makes no guarantees, warranties, or assurances of any kind, express or implied, with respect to such information, including any information on linked sites and including, but not limited to, accuracy of the information or its completeness, timeliness, usefulness, adequacy, continued availability or ownership. Funded by the Department of Labor, Employment and Training Administration, Grant #TC-23745-12-60-A-53.

PACE-IT is an equal opportunity employer/program and auxiliary aids and services are available upon request to individuals with disabilities. For those that are hearing impaired, a video phone is available at the Services for Students with Disabilities (SSD) office in Mountlake Terrace Hall 159. Check www.edcc.edu/ssd for office hours. Call 425.354.3113 on a video phone for more information about the PACE-IT program. For any additional special accommodations needed, call the SSD office at 425.640.1814. Edmonds Community College does not discriminate on the basis of race; color; religion; national origin; sex; disability; sexual orientation; age; citizenship, marital, or veteran status; or genetic information in its programs and activities.