Abstract
In cellular device-to-device (D2D) communication networks, devices can communicate directly with each other without passing through base stations. Access control is an important function of radio resource management which aims to reduce frequency collision and mitigate interference between user’s connections. In this paper, we propose a cluster-based access control (CBAC) mechanism for heterogeneous cellular D2D communication networks with dense device deployment where both the macro base station and smallcell base stations (SBSs) coexist. In the proposed CBAC mechanism, relied on monitoring interference from its neighboring SBSs, each SBS firstly selects their operating bandwidth parts. Then, it jointly al-locates channels and assigns transmission power to smallcell user equipments (SUEs) for their uplink transmissions and users using D2D communications to mitigate their interference to uplink transmissions of macrocell user equipments (MUEs). Through computer simulations, numerical results show that the proposed CBAC mechanism can provide higher network throughput as well as user throughput than those of the network-assisted device-decided scheme proposed in the literature. Simulation results also show that SINR of uplink transmissions of MUEs and D2D communications managed by the MBS can be significantly improved.
Highlights
Future mobile networks are expected to provide communication services to billions of user equipments (UEs), i.e., regular mobile users and machine-type communication devices
We have studied a heterogeneous cellular D2D communication networks with new constraints of dense device deployment, flexible spectrum management and low signaling load requirements
We have proposed the cluster-based access control (CBAC) mechanism to mitigate D2D-to-cellular interference and enhance network throughput
Summary
Future mobile networks are expected to provide communication services to billions of user equipments (UEs), i.e., regular mobile users and machine-type communication devices. In [18], a distributed channel allocation and power control method based on Stackelberg game for D2D underlaid cellular networks is proposed to improve the sum-rate of D2D communications while meeting the QoS requirements of cellular users This method can reduce the computation load of the base station effectively in small D2D communication networks. In [19], the authors propose a centralized resource management mechanism including channel allocation and transmission power control for heterogeneous cellular networks assisted by D2D communications. This mechanism can significantly improve the system throughput by mitigating D2D-to-cellular interference.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have