| 摘要(英) |
To address the increasing demand of mobile data, mobile operators often add Basestations or adopt its own wireless network optimization solution. But they usually find that the result is not as good as expected ideals after paying big expenses. To improve indoor coverage and enhance the service quality of its own wireless network to meet the needs of users, the mobile operators bring in new equipments one after another, for example, Repeater, Small Cell, Femtocell, WiFi and other solutions. Comprehensive understanding the deficiencies of existing wireless network provisioning, introducing new equipments to implement the plans, and evaluating the impact on the existing level of wireless networks will be the subjects that mobile operators have to consider more deliberately in the next phase. There are some methods to understand the current state of wireless network coverage, for example, signal cover results obtained from Simulation program and road test, adopted by KPI judged. However, the variations of signal caused by environmental changes are left behind illustrations.
This study, under the effective coverage area and differential environment of WiMAX Basestation, implemented on-site measurements RSSI (Received Signal Strength Indicator; received signal strength indication) and FTP Down Link throughput (FTP download traffic) to test the reliability and calculate the Path Loss of measurement area, and then analyzing the strength of the wireless signal differences caused by environmental changes. Thus, the test results of these on-site field surveys would be a benefit for operator in environmental selecting of BaseStation provision, choosing placement of antenna orientation, and angle design, with further reference contributions.
Keywords: WiMAX, RSSI, Simulation, Basestation location, Coverage, Path Loss, Antenna |
| 參考文獻 |
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