GSM Vs CDMA
What is the difference between GSM and CDMA? The comparison of GSM vs CDMA is very
useful and interesting from buyer's as well as student's perspective. The following article on
GSM vs CDMA will help you to understand the differences between these two technologies.
GSM is an acronym for Groupe Special Mobile, which has now been changed to Global System
for Mobile Communication. CDMA refers to Code Division Multiple Access. The working of
GSM and CDMA is very different. But the end result, after the implementation of the two
technologies, is highly similar and matching in many ways. This article will try to highlight the
subtle differences between the two technologies.
GSM vs CDMA Technology
GSM is a very straight forward standard, whereas, CDMA is somewhat complicated. The key
difference between the two is that GSM is a standard and CDMA is a technology, but GSM has
attained some technology status over the years. So, what is the difference between GSM and
CDMA? Read on to find out.
GSM is a 'cellular' technology, that is, the entire coverage area is divided into various hexagonal
shaped cells (hence the popular name 'cell phones'). Every cell has a corresponding network
tower, which serves the mobile phones in that cellular area. For example: Imagine a honeycomb
on a tree in a hexagonal shaped garden. The garden has many flowers. The honeybees collect the
nectar from the flowers, and deposit it in the honeycomb. Your mobile phones are like the
flowers, the network tower is like honeycomb, and the bees are the signals.
As the name suggests (Code Division Multiple Access), there are many devices which use the
same spread spectrum (hence multiple access). There is one physical channel, and a special code
for every device in the coverage network. Using this code, the signal of the device is
multiplexed, and the same physical channel is used to send the signal (the codes may or may not