What is the main difference between GSM & CDMA?
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Answer / vanapandi
in cdma only one bandwidth shared by many members..that
means many members can access at the time by using code
divisible tech.
| Is This Answer Correct ? | 8 Yes | 2 No |
Answer / bibhuti bhushan
as we know that GSM is global system for mobile
communication,but earlier name is groupe special mobile.
multiple access method -TDMA/FDM
no. of channel -124 bands(8 user/channel)
channel capacity -200khz
operate in frequency -900mhz,1800mz,1900mhz
| Is This Answer Correct ? | 6 Yes | 2 No |
Answer / kenneth yindi
GSM stands for Global System for Mobile communication. In
GSM use two access methods technics ,That is TDMA and FDMA.
TDMA is Time Division Multiple Access where by the whole
available bandwidth is reserved for particular user in a
given specific time,(Timeslots is given to access the bandwidth)
FDMA is Frequency Division Multiple Access, where by the
available bandwidth is divided into available users. So each
user is part of overall bandwidth.
CDMA- Code Division Multiple Access, the available bandwidth
is given to all users equally but in different codes.
| Is This Answer Correct ? | 5 Yes | 2 No |
Answer / prashant wagh
the downloading spead od cdma is higher than gsm.......400
to 700 kbps.(cdma1000)
whereas downloading speed of gsm is 300 to 400 kbps..(edge)
| Is This Answer Correct ? | 4 Yes | 1 No |
Answer / kamal
gsm is stand for global system for mobile communication.
CDMA stands for code division multiple access.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / deepak
What I think, In simple words,The Mobile phones with
Changeable Sim cards are GSM phones, and Phones with In
built/not changeable sim cards, are CDMA mobile phones.I
dont have full idea, but i think this is the main diffrence.
| Is This Answer Correct ? | 4 Yes | 1 No |
Answer / dastoger bashar from banglades
CDMA:Storage Type:Internal Memory.3G standard
GSM:Storage Type:SIM Card,uses fdma & tdma.3G standard
Dominance&USE: CDMA -->Dominant standard in U.S.
GSM -->except the U.S.
CDMA-->Code Division Multiple Access(Faster than GSM)
GSM-->Global System for Mobile communication3G standard
Global market share: CDMA-->18% GSM-->82%
SIM-->Subscriber Identity Module (SIM) containing the user's
subscription information and phone book.
In GSM only 30 or 35 peoples can call at at time in a
singal carrier but In CDMA apprx 70 peoples can call in a
singal carrier at a time.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / gk
ANSWER TO A DUMMY LIKE ME.
GSM uses Time division Multiplexing and Feqn division
multiplexing. ie. time slots are given or frequency slots
are given to subscribet to communicate.(some times a mixer
of both. It is similar to one peer communicate at a
time(TDM)or each peer communicate at different volume
levels(FDM).
CDMA uses code division multiplexing. ie. full time and full
bandwidth is available for every peer communicators. but
each communication is coded by different codes. Similar to
different languages.
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / e.tarakanta singh
GSM signal can travel upto a distance of 5 Km where as CDMA signal can travel up to a distance of 10 Km.
GSM is an open dital cellular technology use for transmitting mobile voices and data services. Where as CDMA is a channel access method utilised by various radio communication technology.It employs a spread spectrum technology and a special coding scheme to allow multiple user to be multiplex over the same physical channel.
| Is This Answer Correct ? | 2 Yes | 0 No |
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