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The one network that has been not tarnished for bad reception as much as the others in the network provider field is Verizon. That is mainly attributed to the technology that this network operates on, i.e Code Division Multiple Access or CDMA . This technology like most of telecommunication technology was used in the military due to its property to disguise itself as noise and go undetected. A little know company called Qualcom took this technology and developed into a viable business model and that is what Verizon uses as its backbone behind the communication methods. The crux of the issue back and to some extent even today is the handover problem. Basically when the cell phone user moves around the reach of one cell tower needs to be handed over to the next and a lot of issues arose at that junction of transfer, or what is know in the telecommunication industry as handover. The CDMA technology has this unique ability to transmit or receive 2 signals at a time. suppose the cell phone user is moving from the realm of one cell tower 1 into the realm of cell tower 2, this CDMA technology can maintain connection with cell tower 1 until the cell tower 2 takes in charge. Now this led into seem less hand over of the cell signal and at the user end translated into uninterrupted conversation and no dropped calls.
Also, capacity achieved with the CDMA technology is twice that of the competing GSM technology that At&T operates . a)The CDMA also uses wider bandwidth compared to others and less prone to jamming. b)The security involved with the CDMA technology is pretty robust, since the receiving cell tower needs to get special permission from the tower that is handing over the signal FROM is a good feature on days when security is a prime concern.
Now, a detailed look into how this security is achieved. The data when transmitted is no different then a random noise in the airwaves. However at the receiving end of the signal the signal gets processed with a special code that deciphers the noise and converts into meaningful data that can be interpreted. That decipher code is called the spreading sequence or chip sequence. For more detailed understanding, please visit HERE
