COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

WIRELESS COMMUNICATION TECHNOLOGIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why the shape of the cell is not circle
A
small area
B
Complex Design
C
Overlapping regions or gap left
D
Omni directionally
Explanation: 

Detailed explanation-1: -Why the shape of cell is not circle? Explanation: Circle is the first natural choice to represent the coverage area of a base station. But while adopting this shape, adjacent cells cannot be overlaid upon a map without leaving gaps or creating overlapping regions.

Detailed explanation-2: -These cells collectively provide coverage over larger geographical areas. Hexagonal cell shape is perfect over square or triangular cell shapes in cellular architecture because it cover an entire area without overlapping i.e. they can cover the entire geographical region without any gaps.

Detailed explanation-3: -A hexagon is a tessellating cell shape in that cells can be laid next to each other with no overlap; therefore, they can cover the entire geographical region without any gaps. This approximation is frequently employed in planning and analysis of cellular networks.

Detailed explanation-4: -The basic geographic unit of a cellular system is a cell that conceptually has a hexagonal shape.

Detailed explanation-5: -In cellular system design hexagonal shape is used for the following reasons: Hexagonal shape generates minimum overlapping area of the adjacent cells and the frequency planning (reuse) is also simplified if the shape is hexagonal.

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