Utilizing Device to Device Communication in Cellular Networks with the distance-based model selection method

Abstract

The recent advances in the technology of smart devices caused a tremendous increase in wireless traffic in conventional cellular networks, thus leading to overloading the base station, and hence delaying the response to users’ requests. To overcome this, Device to Device (D2D) communication has been proposed recently to alleviate the traffic congestion at the base station (BS) by establishing a direct link between users. However, deciding whether a communication should be performed directly via D2D mode or via the base station is considered one of the challenges of applying such a method. Therefore, a mode selection based model was presented in this paper. The method depends on the probability of a user’s proximity close to 1.0. Furthermore, the proposed method also takes into account the interference with both; other cellular communication and D2D communication. The simulation results showed that a significant reduction in the delay can be achieved when responding to user requests after using the proposed model selection method. The increase in frequency reuse within the cell is considered as the main reason behind this behavior. Also, for a more simplified and less complex model selection method, it is more appropriate to apply the proposed model selection method to only the cell edges.

Automatic Repair Method for D2D Communication Routing Buffer Overflow Vulnerability in Cellular Network

“…Before determining to establish a direct communication link, the base station also needs to allocate communication resources to D2D users and configure network parameters. In addition, under the centralized control mode, the base station can efficiently manage the interference between users [13,14], which is conducive to improving the network performance. However, this central control mode requires a lot of signaling overhead, which is difficult to obtain in the actual wireless network.…”

“…In the network-aided control network architecture, firstly, for D2D users, it needs to be able to perceive the relevant information of other users and the use of network resources according to its own business needs, so as to independently complete device discovery and dynamically adjust its transmission power. In addition, the base station can master the information in the whole network [13], assist D2D users in resource allocation, identity authentication and other functions, and then establish a direct communication link between users. In this way, D2D autonomy has distributed characteristics, and its communication process can be completed with a small amount of signaling overhead.…”