1. Match the multiple access methods with their descriptions. CSMA FDMA TDMA CDM
ID: 3891254 • Letter: 1
Question
1. Match the multiple access methods with their descriptions.
CSMA
FDMA
TDMA
CDMA
User listens to medium to make sure it is not in use, then uses all the bandwidth for a short period of time.
User gets part of the bandwidth all the time.
Users get all the bandwidth part of the time in a repeating time slot.
All users get all the bandwidth all the time.
2. Define both of the following words:
a) Power Control
b) Soft Capacity
CSMA
FDMA
TDMA
CDMA
A.User listens to medium to make sure it is not in use, then uses all the bandwidth for a short period of time.
B.User gets part of the bandwidth all the time.
C.Users get all the bandwidth part of the time in a repeating time slot.
D.All users get all the bandwidth all the time.
Explanation / Answer
2)Answer:
power control?:
In telecommunications, power control refers to the process of controlling the power of a transmitter to achieve better communication signal or overall quality of service. It is mainly used to control the transmitting power of a communication device to achieve better performance
Power control is primarily implemented via purpose-built algorithms. It is implemented on communication devices and systems such as wireless routers, cell phones, cellular networks, sensor networks, DSL modems, etc. Typically, power control allows the transmission or signal power to be scaled, which results in better signal quality. However, power control algorithms are also designed to not scale the power unnecessarily high. Therefore, power control keeps a balance between low, average and high transmission powers for optimal signal or system quality.
Soft Capacity:
A capacity limit is the maximum amount of service (such as data transmission rate) or number of customers that a system can provide services to at a defined level of service
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