High Altitude Platforms (HAP) : A Review
Tanvir Singh, Amritpal Singh, Amit Kumar · 2011
In Today’s Scenario, The curves of Data and Voice Traffic showing the “hockey stick” effects on charts. To provide increased capacity, the cell sizes may be reduced, thus allowing the spectrum to be reused more often within a given geographical area. This philosophy leads to the concept of microcells for areas of high user density, with a base-station on perhaps every street corner. A solution to these problems might be very tall base stations masts with line-of-sight to users. However, these would be not only costly but also environmentally unacceptable. Another solution is use of HAP’s i.e High Altitude Platform that uses crafts to operate in stratosphere at an altitude between 17 and 22 km for carrying communication’s relay payloads and operating in quasi stationary position. In this paper, we have discussed the concept of HAP along with its applications.