Project Details
Projekt
Network management and interference coordination for resource efficiency in Device-to-Device communication
Subject Area
Electronic Semiconductors, Components and Circuits, Integrated Systems, Sensor Technology, Theoretical Electrical Engineering
Term
from 2013 to 2017
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 245944460
This research proposal is intended to explore the potential of direct communication between devices (D2D) in cellular networks, and study the complex interactions and performance trade-offs between D2D and cellular communication and to propose mechanisms for their coordination based on physical, network and application layer information.Combining the physical layer and network/application layer possibilities for direct communication, several challenges have to be met to achieve a system improvement. From the application layer perspective, the current distribution of possible sources and sinks inducing communication must be found. From the network layer perspective, possible D2D candidates need to be identified and their mutual interference properties as well as the interference introduced to the cellular communication need to be controlled. Combining knowledge of both perspectives, a map of sources, sinks and possible peers can be created, hence leading to the problem of choosing the right links, sources and sinks for communication to allow for enhanced service performance at best resource efficiency with controlledinterference to the cellular network and among different D2D links.Controlling the interference environment is essential to allow for efficient operation of wireless networks. D2D communication introduces new sources of interference into the network, both to the basestation and other devices. Whereas state-of-the-art techniques focus either on interference mitigation via orthogonalization or interference avoidance by power-controlled D2D communication, we intendto study possibilities for advanced interference coordination, depending on the degree of available channel state information and the physical layer capabilities of devices and base station, e.g. multiple antenna techniques. The proposal addresses different possibilities for centralized and distributed coordination among multiple D2D communications and the cellular network. Apart from shared resources and mutual interference, D2D and cellular communication are also coupled by traffic routing possibilities of different services. Direct communication between users can be either served by a D2D link or, alternatively, be established by classical cellular communication over the base station. Services like P2P file sharing or P2P video download may offer multiple other devices that can act as sources of their stored content via D2D communication in addition to a direct download through the cellular network. This creates further possibilities and challenges for a trade-off between cellular and D2D communication.
DFG Programme
Priority Programmes
