Abstract
Device-to-Device communication underlaying cellular network can increase the spectrum efficiency due to direct proximity communication and frequency reuse. However, such performance improvement is influenced by the power interference caused by spectrum sharing and social characteristics in each social community jointly. In this investigation, we present a dynamic game theory with complete information based D2D resource allocation scheme for D2D communication underlaying cellular network. In this resource allocation method, we quantify both the rate influence from the power interference caused by the D2D transmitter to cellular users and rate enhancement brought by the social relationships between mobile users. Then, the utility function maximization game is formulated to optimize the overall transmission rate performance of the network, which synthetically measures the final influence from both power interference and sociality enhancement. Simultaneously, we discuss the Nash Equilibrium of the proposed utility function maximization game from a theoretical point of view and further put forward a utility priority searching algorithm based resource allocation scheme. Simulation results show that our proposed scheme attains better performance compared with the other two advanced proposals.
Highlights
With the rapid spread of intelligence terminals and the explosive growth of communication capacity, local area services are considered as a popular issue
Despite the popularity of game theory in recent resource allocation related investigation, the most common idea of these papers is to verify that any strategy that deviates from the Nash Equilibrium (NE) can not improve the system performance any more
In order to jointly compare the influence of sociality between the mobile users within the same community and power interference caused by D2D communication, we discuss the main problem existing in current resource allocation scheme and propose a utility function maximization (UFM) game for D2D communication underlaying cellular network by utility function construction, game establishment, providing relative proof for the existence of Nash Equilibrium
Summary
With the rapid spread of intelligence terminals and the explosive growth of communication capacity, local area services are considered as a popular issue. Despite the popularity of game theory in recent resource allocation related investigation, the most common idea of these papers is to verify that any strategy that deviates from the Nash Equilibrium (NE) can not improve the system performance any more This one-side proof may be not convincing enough when applying to resource allocation problem between two disjoint sets influenced by mutual interference. In order to jointly compare the influence of sociality between the mobile users within the same community and power interference caused by D2D communication, we discuss the main problem existing in current resource allocation scheme and propose a utility function maximization (UFM) game for D2D communication underlaying cellular network by utility function construction, game establishment, providing relative proof for the existence of Nash Equilibrium.
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