Recent advances in self-interference cancellation techniques enable in-band full-duplex wireless systems, which transmit and receive simultaneously the same frequency band with high spectrum efficiency. As a typical application of wireless, relaying (FDR) is promising technology to integrate merits technology. However, several significant research challenges remain be addressed before its widespread deployment, including small-size device design, channel modeling estimation,...

Nowadays, many disruptive Internet-of-Things (IoT) applications emerge, such as augmented/virtual reality online games, autonomous driving, and smart everything, which are massive in number, data intensive, computation delay sensitive. Due to the mismatch between fifth generation (5G) requirements of IoT-enabled applications, there is a need for technological advancements evolutions wireless communications networking toward sixth-generation (6G) networks. 6G expected deliver extended 5G...

Ultra-dense networking (UDN) is considered as a promising technology for 5G. In this article, we define user-centric UDN (UUDN) by introducing the philosophy of network serving user and "de-cellular" method. Based on analysis challenges requirements UUDN, new architecture presented that breaks through traditional cellular controlling user. Dynamic AP grouping proposed core function which could enjoy satisfactory secure service following her movement. Furthermore, provide methods mobility...

To tackle the contradiction between computation intensive applications and resource-hungry mobile user equipments (UEs), edge computing (MEC) has been provisioned as a promising solution, which enables UEs to offload tasks MEC servers. Considering characteristics of small cell networks (SCNs), integrating into SCNs is natural. But in terms high interference, multi-access property, limited resources base stations (SBSs), an efficient offloading scheme essential. However, there still lack...

Recently, with the rapid development of information and communication technologies, infrastructures, resources, end devices, applications in communications networking systems are becoming much more complex heterogeneous. In addition, large volume data massive devices may bring serious security, privacy, services provisioning, network management challenges. order to achieve decentralized, secure, intelligent, efficient operation management, joint consideration blockchain machine learning (ML)...

With the dense deployment of small cell networks, powering and backhaul problem base stations (SBSs) has attracted great attention, energy harvesting technology self-backhaul have been proposed as promising solutions. Although some excellent works done on in most existing do not consider them jointly. In this paper, we aim at green networks by jointly achieving harvesting. addition, full-duplex massive multiple-input multiple-output technologies are also exploited to enhance system...

Mobile edge computing is conceived as an appealing technology to enhance cloud capability of mobile devices (MDs) at the networks. Although some researchers use address intensive tasks' high computation needs MDs in small-cell networks (SCNs), most them ignore considering interests interaction between small cells and MDs. In this paper, we study a distributed offloading strategy for multi-device multi-server system based on orthogonal frequency-division multiple access SCNs. First, satisfy...

Fog computing, complementary to cloud has recently emerged as a promising solution that extends the computing infrastructure from center network edge. By offloading computational applications edge, fog could support delay-sensitive and reliable access nearby users. However, with growing number of demands various applications, may be overwhelmed it result in significant performance degradation. Thus, process efficiently, we propose an integrated (FCC) approach, where users can offload series...

Recently, field-programmable gate arrays (FPGAs) have been widely used in the implementations of hardware accelerator for convolutional neural networks (CNNs). However, most these existing accelerators are designed same idea as their ASIC counterparts, which all operations from different layers mapped to units and working a multiplexed way. This manner does not take full advantage reconfigurability customizability FPGAs, resulting certain degree computational efficiency degradation. In this...

The blockchain-based video systems are designed to build a decentralized and flexible ecosystem by enabling direct interaction among users, providers (VPs), service providers. In systems, the heterogeneous qualities formats of streams usually require massive computational resources transcode them into different versions meet distinct requirements users. However, current blockchains cannot handle streaming due limited computing capacity long transaction times. To deal with this issue, in...

A novel multiobjective technique is proposed for solving constrained optimization problems (COPs) in this paper. The method highlights three different perspectives: 1) a COP converted into an equivalent dynamic problem (DCMOP) with objectives: a) the original objective; b) constraint-violation and c) niche-count 2) of gradually reducing constraint boundary aims to handle difficulty; 3) niche size multimodal difficulty. general framework design evolutionary algorithms DCMOPs. Three popular...

In the area of full duplex (FD) enabled small cell networks (SCNs), only limited works have been done on consideration mobile edge computing (MEC) and caching. this paper, a virtual FD-enabled SCN framework with MEC caching is investigated for two kinds heterogeneous services, high-data-rate service computation-sensitive service. our proposed framework, content FD communication are jointly considered to provide without cost backhaul resource. And offloaded MEC, guaranteeing delay requirement...

Wireless virtual reality (VR) is predicted to become a killer application in 5G and beyond, which provides an immersive experience revolutionizes the way people communicate. It well-known that rendering key performance bottleneck wireless VR systems, especially for games. However, real-time data correlation are ignored by most researchers. In this paper, we propose adaptive framework enables high-quality future mmWave-enabled networks with mobile edge computing (MEC), where tasks can be...

In the wireless Internet of Things (IoT) networks with resource-constrained devices, fog computing has been introduced to deal computation-intensive applications at edges networks. While decreases computation delay and fronthaul traffic data, it also brings severe challenge on complex resource allocation available communication resources under stringent quality service (QoS) requirements. this paper, we investigate problem tasks scheduling heterogeneous for multiple devices in IoT The that...

The growing demanding data rate requirements of future wireless networks have raised enormous concerns on energy consumption. Researchers conduct their study green communication in terms environment and low power consumption technique. Recently, intelligent reflecting surface (IRS) ambient backscatter (ABC) been proposed, respectively, they attracted attention. In this paper, we the ABC-enabled non-orthogonal multiple access (NOMA) networks. such networks, obstacles may block from base...

Receptor for Activated C Kinase 1 (RACK1) is viewed as a versatile scaffold protein in mammals. The sequence of RACK1 highly conserved eukaryotes. However, the function plants remains poorly understood. Accumulating evidence suggested that may be involved hormone responses, but precise role any signalling pathway elusive. Molecular and genetic Arabidopsis negative regulator ABA responses provided here. It shown three genes act redundantly to regulate seed germination, cotyledon greening root...

A user-centric ultra-dense network (UUDN) is proposed as one of the promising solutions to provide very high area throughput density and flexible access service for users in fifth-generation systems. On hand, densification provides opportunities cooperate among a large number points (APs) serving given user. other limited radio resources cause serious competition numerous APs may degrade performance. Therefore, support connections break through restriction frequency resource, non-orthogonal...

Mobile edge computing (MEC) provides a promising way to bring enhanced capabilities in proximity user equipments (UEs). Various previous works have been done and they usually focus on how segment the computation intensive task offload of network with plenty capacity. However, few them consider integrating MEC small cell networks (SCNs) which is regarded as key technology future 5G networks. In this paper, we study offloading scheme multiuser multi-SC scenario MEC. We firstly formulate an...

The vehicular networks with mobile edge computing (MEC) provide a promising paradigm to meet the explosive demands. To further reduce total latency and improve utilization of computation resources, we consider available resources propose federated offloading vehicle-to-infrastructure (V2I) vehicle-to-vehicle (V2V) communication in MEC-enabled networks. In this paper, investigate problem how realize effective for moving vehicles, target minimize latency. task is divided into three parts: part...

In this paper, we study radio frequency (RF)-powered underlay cognitive networks (CRNs) with power-domain non-orthogonal multiple access (NOMA). these networks, by using the harvest-then-transmit (HTT) mode, secondary transmitters (STs) can use harvested energy to simultaneously transmit data based on NOMA. However, in throughput of system heavily depends not only energy, but also stringent interference threshold imposed primary users. Furthermore, ambient backscatter communication (ABC) has...

Considering the advantages of small cell networks (SCNs) and mobile edge computing (MEC), it is natural to combine cells with MEC, which can not only enhance computation capacity user equipment (UE) but also provide users a high quality services (QoS). However, energy consumption becomes rigorous problem operators environment base stations (SBSs) densely deployed. Hence, crucial exploit off-grid green resources power SBSs, for harvesting (EH) one viable solutions. But there impose formidable...

Integrated sensing and communications (ISAC) technology has attracted increasing attention to enable various emerging applications in the future wireless networks. However, uncontrollable electromagnetic environments still restrict performance of both radar communication ISAC For above issue, this paper leverages a novel simultaneously transmitting reflecting reconfigurable intelligent surface (STAR-RIS) provide extensive reliable coverage for Thereinto, STAR-RIS can not only elevate...

The rapidly growing mobile traffic calls for higher quality of service (QoS) and lower on-grid energy cost. Integrating harvesting to small-cell networks (SCNs) with caching has been regarded as a promising solution. However, considering the limited resources base stations (SBSs), how cache contents serve users (MUs) is crucial problem. In this paper, we jointly design green content user-base station (MU-BS) association mechanism in SCNs, where number MUs' requests served by SBSs maximized....