Level Crossing Rate Impact on Routing Performance in Adhoc Networks for Device-to-Device Communication

In an actual environment, device-to-device (D2D) communication on an adhoc network experiences a rapid signal quality changes. The variation of the amplitude and phase of the received signal is due to changes in the characteristics of the path over times which are affected by distance and multipath fading between the sender and receiver. This will affect the performance of routing connection in D2D communication. In this research, we have investigated the impact of level crossing rate (LCR) of a routing quality connection in adhoc network for D2D communication. LCR is quantifies how often the fading signal level is below the threshold value which is usually used for measuring of the rapidity of the fading fluctuation. The simulation result shows that the higher LCR value indicates a low quality routing connection and reduces throughput performance. The multipath fading and the velocity lead to a higher LCR in routing connection. Threshold signal level plays an important role in determining the LCR and the quality of the routing connection in the path selection mechanism.