Grade of service (GOS) in mobile communication.

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written 5.7 years ago by

teamques10 ★ 67k

• modified 5.7 years ago

The Grade of service (GOS) is a measure of ability of mobile subscriber to access a cellular system during the busiest hour.
The busy hour is based upon the subscribers demand for the service from the system at the busiest hour during a week,month or year.
It is necessary to estimate the maximum required capacity in term of available channels and to allocate the proper number of channels in order to meet the GOS .
GOS is typically specified as the probability that a cell is blocked, or the probability of a call experiencing a delay greater then the predefined queuing time.
A call which can not be completed at the time of call request made bye a mobile subscriber is referred to as a blocked call or lost call.
This may happen due to channel congestion or non-availability of a free channel.
In other words, grade of service is a measure of channel congestion which is specified as the probability of a call being blocked or the probability of a call being delayed beyond a specified time.

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