COMPUTER NETWORKS AND COMMUNICATIONS
WIRELESS COMMUNICATION TECHNOLOGIES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Group of frequency
|
|
|
Group of Cells
|
|
|
Group of Subscribers
|
|
|
Group of Mobile Systems
|
Detailed explanation-1: -The group of cells where the available frequency spectrum is totally consumed is called a cluster of cells. Two cells having the same number in the adjacent cluster, use the same set of RF channels and hence are termed as “Co-channel cells”.
Detailed explanation-2: -When planning a cellular network, operators typically allocate different frequency bands or channels to adjacent cells so that interference is reduced even when the coverage areas overlap slightly. In this way, cells can be grouped together in what is termed a cluster.
Detailed explanation-3: -12. What is a cluster in a cellular system? Explanation: Cluster is group of N cells. These cells use the complete set of frequency available for the cellular system at that location.
Detailed explanation-4: -These clusters typically contain 3-30 cells, but may have as many as 50. They propel themselves at speeds of 0.2-4.0 micrometer/min by means of broad hyaline lamellae.
Detailed explanation-5: -The frequency reuse factor is defined as 1 over the number of cells in the cluster of the system. Valid clusters are those that result in 6 cells with the same frequency of a particular cell located at equal distance from it.