Abstract
The device-to-device (D2D) technology performs explicit communication between the terminal and the base station (BS) terminal, so there is no need to transmit data through the BS system. The establishment of a short-distance D2D communication link can greatly reduce the burden on the BS server. At present, D2D is one of the key technologies in 5G technology and has been studied in depth. D2D communication reuses the resources of cellular users to improve system key parameters like utilization and throughput. However, repeated use of the spectrum and coexistence of cellular users can cause co-channel interference. Aiming at the interference problem under the constraint of fair resource allocation and improving the system throughput, this paper proposes an effective resource optimization scheme based on the firework method. The main idea is to expand the weighted sum rate and convert the allocated resource expression into fireworks to determine the correlation matrix. The simulation results show that, compared with the existing scheme, this scheme improves system performance by reducing interference.
Highlights
With the rapid popularization of mobile computing, users have higher expectations and requirements for the speed and capacity of wireless networks, which has led to a sharp increase in the demand for spectrum resources from mobile terminals [1,2]
D2D communication working in multiplexing mode allows terminal equipment to perform point-to-point direct communication by reusing the spectrum resources of Cellular User Equipment (CUE) in the system without forwarding through the base station server [13]
In order to expand the system throughput and ensure the fairness of resource allocation for D2D users, this paper proposes a new resource allocation scheme based on fireworks, which allows a cellular user’s spectrum resources to be allocated to multiple D2D users and one D2D user
Summary
With the rapid popularization of mobile computing, users have higher expectations and requirements for the speed and capacity of wireless networks, which has led to a sharp increase in the demand for spectrum resources from mobile terminals [1,2]. At the meeting site, all participants need to obtain the same documents In this case, due to the short distance between users receiving data, D2D multicast is used to assist the base station downlink transmission, which can improve the spectrum efficiency and shorten the end-to-end delay. D2D communication working in multiplexing mode allows terminal equipment to perform point-to-point direct communication by reusing the spectrum resources of Cellular User Equipment (CUE) in the system without forwarding through the base station server [13]. It effectively solves problems such as spectrum shortage and improves resources. In the smallest part, we came to a conclusion
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