Abstract
As one of the most promising techniques in wireless communication systems, device-to-device (D2D) has drawn much attention due to its superior performance. Meanwhile, the interference between cellular users and D2D users is still a challenging problem and needs to be mitigated effectively. A large number of simulation experiments for D2D communications have been studied to reduce the impact of the interference in the existing literature. However, theoretical research is still lacking. Thus, in this paper, we use stochastic geometry to evaluate the uplink performance of users by considering the impact of the previous moment on the next moment, which captures the effect of temporal and the spatial correlation of the interference in D2D communication underlaying cellular networks. Using a Poisson point process to model locations of D2D users, we derive an analytic expression for conditional probability and unconditional probability of link success, and prove that the probability of link success is temporally correlated. Moreover, we provide a theoretical framework for interference mitigation in D2D underlaying cellular networks.
Highlights
In order to provide higher speed and lower power consumption service in communication networks, lots of wireless transmission technologies are investigated [1,2,3]
The other is a set of new D2D users who are allowed to transmit signals at time slot l + 1 and share the same frequency with the reference
We explore the coverage probability over two time slots in D2D communication underlaying cellular networks where the interferer forms a Poisson point process (PPP)
Summary
In order to provide higher speed and lower power consumption service in communication networks, lots of wireless transmission technologies are investigated [1,2,3]. The athors in [14] derive an outage probability expression by analyzing the temporal correlation of the interference for Poisson line networks. The athors in [15] derive an expression for the coverage probability when the reference user is able to perform MRC of the received signals in two transmissions in heterogeneous networks. To the best of our knowledge, there is no published research that analyzes performance by considering the effect of temporal correlation of the interference in D2D communication underlaying cellular networks. We explore the coverage probability (namely the probability of link success) over two time slots in D2D communication underlaying cellular networks where the interferer forms a Poisson point process (PPP).
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