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TDMA:
Time division multiple access (TDMA) is a channel access method for shared medium (generally radio) networks. It permits several users to share the similar frequency channel by dividing the signal into different time slots. The users transfer in rapid succession, one after the other, each using his own time slot. This permits multiple stations to
Share the similar transmission medium (e.g. radio frequency channel) while using only a part of its channel capacity. TDMA is used in the digital 2G cellular systems like Global System for Mobile Communications (GSM), IS-136, Personal Digital Cellular (PDC) and iDEN, and in the Digital Enhanced Cordless Telecommunications (DECT)
Standard for portable phones. It is also used extensively in satellite systems, and combat-net radio systems.
FDMA:
Frequency Division Multiple Access or FDMA is a channel access method used in multiple-access protocols as a channelization protocol. FDMA gives users an individual allocation of one or various frequency bands, permitting them to utilize the allocated radio spectrum without interfering with each other. Multiple Access systems coordinate access among multiple users. The users may also share access by different methods such TDMA, CDMA, or SDMA. These protocols are utilized differently, at dissimilar levels of the theoretical OSI model.
Disadvantage - High level Languages a.Computational time is more as compared to machine languages. b.Requires more memory. c.Requires the knowledge of specific rules
.coments on the limitation of the superposition theorem
Consider the common-emitter BJT circuit shown in Figure (a). The static characteristics of the npn silicon BJT are given in Figure (b) along with the load line. Calculate iB for v
uses of michelson interferometer?
Define Stability - Characteristics of Discrete Time Systems? The LTI system is stable if its impulse response satisfies the condition This condition is satisfie
Describe the Automated flow lines with suitable diagrams? Also provide the Reason for Automating? Discuss the Work part Transfer Mechanisms in detail? Discuss the requirement fo
units of potential energy
create a matrix of 5x6. with identical columns and rows ranging from 200 to 1000 in equal increments
A three-phase, six-pole, wye-connected synchronous generator is rated at 550 V and has a synchronous reactance Xs = 2 . When the generator supplies 50 kVA at rated voltage and a p
CPI Compare Immediate Instruction The 8 bit data specified in the instruction is compared with the contents of the accumulator. The comparison is done by subtracting
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