Contents
CODE DIVISION MULTIPLE ACCESS
by
Sainyum P Gupta (02D07034)
Satish Meena (02D07038)
Aditya Agrawal (02D07020)
Abstract:
This paper studies CDMA data transmission technology. CDMA spread spectrum signaling techniques have gained increasing importance over the past few years. Long used in military systems such as GPS, they are finding increased usage in the cellular communications market. CDMA uses revolutionary techniques such as Rake receivers, Soft Hand-offs and Variable Rate Vocoders to provide a superior cellular service to its subscribers making it the choice data transmission technique to dominate the data transmission market in the near future.Introduction:
Today’s world practically survives on information. From finance to sports, communication has become a crucial factor in running day-to-day activities. In today’s competitive markets, people need cheaper and more efficient ways of communicating over long distances. CDMA technology is the solution to this demand. Using ingenious, revolutionary signal transmission techniques, it provides cheaper, clear voice transmission between cellular phones. Besides this CDMA ensures data privacy during the transmission, something alien to outdated transmission systems like TDMA and FDMA. A more factual proof of the advantages of CDMA technology can be inferred from the formation of CDMA based cellular service providing companies like Reliance and Tata, in India, and their wide success. In this presentation, we study an overview of CDMA encoding and transmission systems and techniques.MOTIVATION:
After careful consideration and debating, we decided to choose a topic for this Presentation that was significant in today’s world and would be a useful subject of study that would assist us in the future. CDMA is a rapidly evolving field with countless applications and possibilities of expansion and has taken the cellular phone industry by storm. It stands out against competition from various other data transmission techniques like GSM by head and shoulders. CDMA is the base of the cellular phone industry of the future as proved by its sudden uprising in today’s world. It is a more effective technology providing clearer sound quality, lower cost requirements, and smooth inter-cellular functioning capabilities. It ensures data-privacy for the users unlike outdated technologies which can be easily deciphered. In today’s world more people are switching to cellular phone networks using CDMA techniques for data-transmission providing cheaper and better services. CDMA makes an intriguing topic of study for us and we are only glad to get a chance to study it in detail.
