Performance analysis of wireless link quality in wireless sensor networks

This paper aims to analyze wireless link quality like received signal strength indicator (RSSI) and link quality indicator (LQI) in IEEE 802.15.4 based wireless sensor networks. Our experiments are performed on Chipcon CC2420 radios, which comply with the IEEE 802.15.4. In order to measure the performance of LQI, RSSI and PRR in IEEE 802.15.4 based wireless sensor networks, the experiments were conducted by varying distances between transmitter and base-station and transmit power level. Our experimental results show that the PRR depends on some factors such as LQI and RSSI including the distance between transmitter and base-station and the location of each of the sensor nodes.