Dear Pratap SIngh

both technologies are better , we cannot compare these technologies in this manner, you have be precise in your question, as far as market value is concern there is no doubt GSM is better.

Syed, of course we can compare GSM and CDMA, the only question is on what basis. For 2G networks, you are right, GSM has far more market share. However, for 3G and 4G networks, it is a landslide in favor of the roughly 10X greater spectrum efficiency for CDMA. Of course, from a patents and technology future path, gsm in 4G essentially builds in/incorporates CDMA as part of GSM-compatible networks. So in sum, for value,there is a reason Qualcomm has been a giant cash register for decades; which is its dominance of the patent pool and chip manufacturing for - CDMA, now embedded in 4G networks - everywhere.

Thanks dearr for your valuable answes..!!!

Well, both technologies are suitable for futuristic telecommunications. The fact is that both have their strengths and weaknesses. In a layman's terms, CDMA allows multiple conversations per channel as it only needs to assign just a code to a client and thus so many people can talk at the same time on the same channel each with a different code and thus there is no interference. However, GSM uses TDMA (time division multiple access) which only allows one conversation per channel at a time and as such in the absence of a free channel, a subscriber will have to keep waiting until a channel is freed before he or she can also place a call. One other point is that in terms of their noise characteristics, GSM is relatively better than CDMA. Still, GSM is more popular than CDMA since it was the foremost digital technology rolled out before Andrew Viterbi and Co. at Qualcomm designed CDMA