The Gap between Expectation Reality: Long Term Evolution (LTE) Third Generation (3G) Network Performance in Campus with Test Mobile System (TEMS)

摘要

In this paper, the performance of LTE networks have been analyzed and compared with the original target outputs, as specified in LTE Release 8. The test is done by executing a real drive test, which is executed in a sub-urban campus environment. The drive-test was performed in both in-building and outdoor environments. The user mobility affects the received user throughput, as well the Reference Signal Strength Indicator (RSSI). The test cases are executed by using a real LTE user equipment, equipped with ASCOM's TEMS software on a live 3G and 4G mobile networks for the both Malaysian mobile service providers; Maxis and Celcom. Most test cases used FTP Traffic in both uplink and downlink testing scenarios. The performance indicators considered is the RSSI (dBm), the average user-throughput (kb/s) and the round trip delay (ms). The results showed sufficient coverage within the campus area from both operators. The recorded user throughput reading is way below the target rate specified in LTE Release 8. This is because the terrain profile (hilly areas) and foliage (thick & tall trees) within the campus areas affecting the measured throughput. The round trip time found to be almost similar to the target (<;20 ms).