Increase in radio spectrum

Increasing the number of base stations & reusing the channels

Both a & b

None of the above

Circular

Square

Oval

Hexagon

It uses the maximum area for coverage

Fewer number of cells are required

It approximates circular radiation pattern

All of the above

Sectored directional antennas

Omni directional antennas

Yagi uda antennas

None of the above

The traffic carried by whole network

The traffic carried per cell divided by the bandwidth of the system and the area of a cell

Expressed in Erlang /MHz /km²

Both b and c

Both a and c

Increased capacity

Limited spectrum is required

Same spectrum may be allocated to other network

All of the above

Fixed

Dynamic

Regular

Both a and b

Both b and c

Gets transferred to another cell

Gets blocked

Is kept on waiting

All of the above

Each cell is assigned a predetermined set of frequencies

The call is served by unused channels of the cell

The call gets blocked if all the channels of the cell are occupied

All of the above

Voice channels are not permanently assigned

The serving base station requests for a channel from MSC

MSC allocates the channel according to the predetermined algorithm

All of the above

Blocking is reduced

Capacity of the system is increased

Both a & b

None of the above

More storage required

Calculations and analysis is increased

Both a & b

None of the above

True

False

Process of transferring the call to the new base station

Transfers the call

New channel allocation is done

All of the above

Week signal conditions

High traffic conditions

Un availability of the channel

All of the above

When mobile station moves in two cellular systems with different MSC

When mobile station moves between two cellular systems

When mobile station receives more power from other base station than the serving base station

All of the above

Guard channel concept

Fixed channel assignment

Dynamic channel assignment

None of the above

Providing Guard channel

Queuing of handoffs

Both a & b

None of the above

A call within the cell

Hand off

Waiting for channel allocation

None of the above

Interference

Distance between the subscriber and the base station

Propagation of call

All of the above

The power received by the mobile station from other base station is more than the serving base station

The channel allocated is not available

The mobile station has no signal

All of the above

Faster handoffs

Suitability for frequent handoffs

MSC need not monitor the signal strength

All of the above

Termination of a call

Spectrum unavailability

Accommodating large number of users in limited spectrum

All of the above

The user is blocked

The access to the system is denied

The queue may be provided

All of the above

Uses large and small cells

Uses different antenna heights

Is used for high speed users with large coverage area and low speed users with small coverage area

All of the above