Question

During the past five decades, the cellular communication has seen

significant changes in the world. There have been some remarkable aspects

to the rapid growth in wireless communications, as seen by the large

expansion in mobile systems. Create a concept map depicting the

Darwinism of the above-mentioned scenario stating the frequency range,

used technology, data rate, key features etc.…and relationship among them.

Note:

1. Concept map diagram is different from mindmap. Strictly the answer

should be concept mapping.

2. Use different colors to make the diagram self-explanatory​

Answer 1

Answer:

This report examines the evolution of radio-frequency communication—commonly referred to as wireless communication1—and the framework that governs its use (a framework that also extends to uses of radio frequencies for purposes other than communication). An avalanche of new technologies, applications, and markets for wireless communications is colliding with a well-established and comprehensive but increasingly obsolescent framework for the allocation, assignment, and utilization of the radio spectrum. Even as demand for wireless services continues to grow, much of the radio spectrum has already been allocated and assigned by frequency band (and often by geographical location) for a multitude of private-sector and government uses. The more recent developments come on the heels of many decades of technological progress, notably marked by widespread deployment of existing wireless capabilities such as several successive generations of cellular telephone technology now used by billions of people worldwide and a proliferation of actual and proposed uses of wireless communications.

Significant policy changes in recent decades reflect efforts to adjust to new technologies and to decrease reliance on centralized management. There is debate about how the overall framework should be changed, what trajectory its evolution should follow, and how dramatic or rapid the change should be. Many groups have opinions, positions, and demands related to these questions, reflecting multiple commercial,

Explanation: