The ever-increasing demand for mobile Internet and high-data-rate applications poses
unique challenging requirements for 5G mobile networks, including spectrum limitations and …

In this paper, the system capacity of multihop Decode-and-Forward (DF) relaying networks
under adaptive transmission techniques is studied over Rician fading channels. In particular …

In cognitive spectrum sharing systems, interference probability (IP) is one of the most
important performance metrics illustrating the interference level at the primary network. In …

This paper is concerned with performance analysis of cognitive underlay partial relay
networks with imperfect channel state information (CSI). To assure the required quality of …

In URLLC the performance of short message communications highly depends on the
training sequence length due to the stringent latency and reliability requirements. In this …

In this paper, we propose a downlink cognitive underlay relay networks with non-orthogonal
multiple access (CR-NOMA), where a secondary source node communicates with two …

In this paper, we investigate joint relay selection and optimal power allocation, as a means
to maximize the achievable rate of an underlay cooperative cognitive radio with carrier …

This paper investigates the cooperative multihop cognitive relay networks (CRNs) under a
novel two-dimensional spatial-temporal opportunity model, in which free opportunity and …

This paper analyzes the performance of a cognitive underlay system over Nakagami-m
fading channels, where maximal ratio combining (MRC) is employed at secondary …

Trong bài báo này, chúng tôi đề xuất mô hình mạng chuyển tiếp đa chặng thứ cấp vô tuyến
nhận thức dạng nền hoạt động trong mạng 5G đáp ứng dịch vụ truyền thông gói tin ngắn …