Power Control in LTE-Advanced Networks for Device to Device Communication
نویسنده
چکیده
Device to device communication systems will be able to handle voice and data services in an efficient manner. To provide efficient transmission, power control mechanisms play a very important role in LTE-A networks. For D2D communication, D2D discovery signals and cellular signals are multiplexed. This multiplexing is responsible for In-band Emission Interference (IEI). In-band Emission Interference degrades discovery range of device to device user equipments and hence throughput of cellular user equipments. In this paper, a utility function based uplink power control algorithm is developed for D2D communication in LTE-Advanced networks. Based on the mode selected, transmit power levels are iteratively calculated to meet the Quality of Service (QoS) requirements of all users. A high received power signal at device user equipment indicates strong In-band Emission Interference. The simulation results demonstrate the effectiveness and superiority of our proposed method in terms of power consumption.
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