2. Energy consumption has become one of the most
important issues in the world. The base station acquires more
energy in the cellular network. By using the cell zooming
concept to reduce the energy consumption.
Cell zooming is a new concept which adjusts the cell
size according to the traffic load, user requirements.
Cell size is adjusted by varying the base station transmit
power.
Introduction
3. CELL ZOOMING SYSTEM
Cells with original size
It consists of five same size cells each cell have base station and mobile
user base station consists of antenna that are used to cover with geographic
region.
Mobile users
Base station
cell
4. when load increases cells will zoom in
In this case when the load increases the cells will zoom in. All the
mobile users arriving towards the central cell. So central cell will
overcrowded. When the cells get zoom in the mobile users will free from
cell, so cells will be overcrowded and also mobile users will not get the
coverage.
5. when load decrease cell will zoom out
When the load decreases the cells will zoom out, in this mobile users
are moving away from the central cell, so cells will be overcrowded and also
mobile users will not get the coverage.
6. Neighbour cell are zoom out
In this case the neighboring cells can either zoom out to take care of
the coverage. The central cell chooses to reduce the energy consumption of
the Base station.
7. Central cell sleep and neighbour cell transmit
cooperatively
The central cell will be sleeps and neighboring cells transmit sharing to
others. Simulation outcome illustrate that cell zooming leads to considerable
energy savings of up to 40% while maintaining coverage during off-peak hours.
when demand increases, the base station can quickly return to its full
coverage state.
8. Advantages:
By using the cell zooming concept we can reduce the
power consumption.
cell zooming leads to considerable energy savings of up
to 40%.
