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Full-Text Articles in Engineering
Non-Orthogonal Multiple Access In A Mmwave Based Iot Wireless System With Swipt, Haijian Sun, Qun Wang, Shakil Ahmed, Rose Qingyang Hu
Non-Orthogonal Multiple Access In A Mmwave Based Iot Wireless System With Swipt, Haijian Sun, Qun Wang, Shakil Ahmed, Rose Qingyang Hu
Electrical and Computer Engineering Student Research
This paper applies non-orthogonal multiple access (NOMA) and relaying schemes in a mmWave based wireless heterogeneous system that aims to support Internet of Things (IoT) applications. The system consists of high power base stations, low-power relays, and low-power IoT devices. Due to the ad hoc deployment nature of low-power relays, they have very limited access to wireline power charging facilities. Furthermore, IoT devices normally have limited power and short battery life. The study assumes low-power relays and IoT devices are capable of energy harvest functionality. With the help of relays or IoT devices, downlink NOMA transmission consists of two phases. …
Fast And Efficient Radio Resource Allocation In Dynamic Ultra-Dense Heterogeneous Networks, Chonggyu Niu, Yibing Li, Rose Qingyang Hu, Fang Ye
Fast And Efficient Radio Resource Allocation In Dynamic Ultra-Dense Heterogeneous Networks, Chonggyu Niu, Yibing Li, Rose Qingyang Hu, Fang Ye
Electrical and Computer Engineering Faculty Publications
Ultra-dense network (UDN) is considered as a promising technology in 5G wireless networks. In an UDN network, dynamic traffic patterns can lead to a high computational complexity and an excessive communications overhead with traditional resource allocation schemes. In this paper, a new resource allocation scheme presenting a low computational overhead and a low subband handoff rate in a dynamic ultra-dense heterogeneous network is presented. The scheme first defines a new interference estimation method that constructs network interference state map, based on which a radio resource allocation scheme is proposed. The resource allocation problem is a MAX-K cut problem and can …