Regression testing - running tests after code modifications - is widely practiced in industry, including at Samsung. Regression Test Selection (RTS) optimizes regression testing by skipping tests that are not affected by recent code changes. Recent work has developed robust RTS tools, which mostly target managed languages, e.g., Java and C#, and thus are not applicable to large C projects, e.g., TizenRT, a lightweight RTOS-based platform.

This paper proposes path loss characteristics for urban high-rise environments based on 0.75, 1, 2, 3, 4.5, 6, 10, 18, and 24 GHz measurements. We conducted a measurement campaign using 10- and 2-m-high omnidirectional antennas for transmitting (Tx) and receiving (Rx) sites, respectively. This paper reports the path loss and the parameters of the alpha-beta (AB). The proposed model would be useful for predicting electromagnetic fields located in real environments, and for planning cellular communication services.