Communications Degrees Offer Direct Path to E-commerce Employment
The Internet has unquestionably changed the way many companies do business. Online sales have grown exponentially since the mid to late 1990’s and many businesses have long ago realized that the greatest shopping mall ever constructed has a doorway in almost every home. In fact, even the act of doing business on the Internet has spawned its own industries, each sharing in the success of online wholesalers and retailers.
When it comes to education, however, few colleges and universities have taken advantage of the shift. While online educational providers, perhaps because of their very nature, are relatively adept at providing Internet centered educational opportunities, few campus based colleges have recognized the glaring need for degrees centered on the unique hurdles faced by online entrepreneurs as well as established business entities already successful in the non-virtual world. Whether online or on campus, however, one failsafe academic path for those interested in the fastest growing business sector is, and always has been, well suited to the task.
Communications has always seemed to suffer from vagueness when it comes to a description palatable for those choosing a major, but the reality of the field quite clear. Communications as a degree program offers insight into the many ways in which people, products, services and business entities are able to be linked. From one medium to another, communications covers all the bases, especially those unique to the last decade.
Communications programs are only as relevant as their curriculum is timely. Because of this, far more people working in an Internet related capacity come from a communications background than any other, including network administration, computer science or any of the more technically oriented fields of study. In fact, according to the U.S. Department of labor, over 60% of communications majors end up working in a field directly related to online commerce.
In truth, the direction of even the largest businesses is conceptualized and brought to life through the actions of individuals. As more and more of our communications, and consequently our lives, are centered around the virtual world, it only makes sense that our commerce would follow. Communications degree programs offer more than just an introduction into the mechanics that govern the online marketplace, they offer an education that will open the door to the future of business.
Shay Rosen
http://www.articlesbase.com/careers-articles/communications-degrees-offer-direct-path-to-ecommerce-employment-140230.html
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In mobile communications systems, what is the meaning of ‘reuse factor’?
Say reuse factor, N=3.
Does this mean that each cluster is made of 3 cells?
And each cell operates at a different frequency? (a book says different ‘channel sets’ , whats that?)
So is it correct to say N is equal to the number of cells in a cluster or equal to the number of channel sets?
So in a particular region is it better to have smaller or larger N? Why?
Cellular systems reuse over and over the same frequencies, because they have only a limited quantity of channels, and the same channels have to be reused all over the earth.
That’s the invention of ‘cellular system’ and why it had such a success.
The cell ‘have to be’ an hexagonal because is the simplest way to covert completely a geographical area, (in fact the areas are circular).
At first the whole hexagon was used as a cell and you get a reuse of factor of 12. 12 different cells to cover all the geography without interference from one area to the next around. Whit 12 different groups (cells), the cell operating with the same frequencies are separates enough not to interfere.
Later, both, for FDMA and TDMA systems, was invented the sectorized cell, because the increasing traffic could not be covered with ‘whole cells’ anymore. Two systems were invented. One with 24 sectors using 6 sectors per cell area with 4 different cells groups (Cell A, Cell B, Cell C, and Cell D), to cover all the geography. THe other with 21 sectors using 3 sectors per cell area with 7 different cells groups, (Cell A to Cell G), to cover all the geography.
In sectoring 24 each cell has 6 antennas and every sector cover 60º degrees angle. In sectoring 21 each cell has 3 antennas and every sector cover 120º angle. In fact sectoring 21 use more antennas for a different porpoise.
When GSM system was invented they use a different frequency arrangment and could use only 3 cells arrangment with sectoring 18.
CDMA has fewer interference patterns, and it recall to use, as better figure, reuse 1, using the same frquencies all over the geography, but, since not CDMA remain in my area I have not enogh experience to tell; but WiFi and WiMax system are the better lab to see how CDMA behave in reality.
Please, let me know if you have some douth, I have graphical description of those cell paterns because I used to teach.
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Course Leader Bachelor of Science in Mobile Communications and Security UL – LM083
Students of this course will be equipped with the expertise to be a leader in the ongoing mobile networking revolution.As a graduate of this course, you will be well placed to build the secure and safe networks and systems of the future and also able to tackle web and computer crime. This degree is about building secure systems to protect vital information, like bank details and medical records. It will teach you the key concepts in computer and web security: forensics, ethical hacking, and encryption. It also will show you how the web and computers work and how they are programmed. You will gain a thorough knowledge of the internet, mobile and wireless devices, computer programming and systems design. Our well equipped laboratory facilities enable you to acquire practical experience that will make you very competitive in today’s and tomorrow’s job market.
Duration : 0:2:31
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