This paper considers network capacity and user coverage improvement in Internet of Things (IoT)-oriented massive MIMO systems. In the literature, grouping approaches have been used to improve capacity, where users are generally divided into non-overlapping groups, those with less favorable channel conditions dropped for optimization. As a result, may suffer from unpredicted interruptions delays, even long time disconnection network. Moreover, also leads unnecessary resource waste. an effort...

This paper considers physical layer interference management and network capacity improvement in Internet of Things (IoT)-oriented cognitive MIMO-OFDM systems, where the IoT devices access to licensed spectrum by radio underlay. Aiming fully eliminate primary user as well ensuring optimal QoS for all devices, this paper, we propose a leakage-based precoding scheme with dimensionality reduction SLNR criterion. More specifically, first introduce new channel estimation method using multi-channel...

This paper considers interference management and capacity improvement for Internet of Things (IoT) oriented two-tier networks by exploiting cognition between network tiers with alignment (IA). More specifically, we target our efforts on the next generation networks, where a tier femtocell serving multiple IoT devices shares licensed spectrum pre-existing macrocell via cognitive radio. Aiming to manage cross-tier caused sharing as well ensure an optimal femtocell, two novel self-organizing IA...

GPU is becoming attractive around multiple academic and industrial area because of its massively parallel computing ability. However, there are still some obstacles which the virtualization technologies should overcome to reach their maturity. These mainly include problem resource allocation strategy guarantee possible higher yield. This shortage has already become an obvious barrier practical usage in cloud for satisfying business academical requirements. There many mature pieces research...

In order to improve the spectral efficiency, in cognitive radio (CR) network with multiple-input multiple-output (MIMO) links, several secondary users (SU) equipped multi-antenna intend communicate others an underlay manner by sharing frequency which is originally allocated a primary user simultaneously. For such scenario, need suppress interference caused and system shouldn't even notice presence of system. this paper, we study optimal secondary-link beamforming pattern that maximize users'...

Along with the emerging high density Internet of Things (IoT) networks, relay-assisted networks are attracting more research attention in recent years due to their abilities extend coverage area and improve Quality Service (QoS). Blocking probability (BP) has been used as a very important metric evaluating QoS network. In this paper, taking spatial randomness IoT network into consideration, we investigate blocking OFDMA using stochastic geometry. More specifically, first, analyze inter-cell...

This paper considers capacity and quality of service improvement in Internet Things (IoT) oriented massive MIMO systems through overlapping user grouping. In systems, selection grouping are generally used to reduce multiuser interference. existing approaches, users with less favorable channel conditions dropped for optimization. As a result, some would never be served by the system IoT networks. Moreover, subgroups non-overlapping, leading unnecessary resource waste. Motivated these...

From the perspective of economic and efficient benefits, modern data center oversubscribes power supplies to deploy as many servers possible. The oversubscription is based on varied loads among modulate demand. Nevertheless, has potential threats system availability, may collapse a result overloading. Current solutions usually focus managing datacenter workload avoid peak demand time in center. However, none current research considers influence failure or utility components, where component...

Estimation of polarization state interference is the key problem information processing, this paper studies mathematical principles adaptive filtering technique and simulation, A conclusion can be drawn: not only estimate effect very good for fixed on change style, style also fast tracking, estimation accuracy efficiency algorithm are more excellent, which provides a theoretical basis analysis performance practical algorithm.

Fundamentals of two-photon photopolymerization have been introduced and a 3D femtosecond laser micro-nanofabrication system has built. In this paper, CAD data model based on also discussed. The various sphere-rod photonic crystal structure mimicking real atom structures in electronic crystals fabricated.

The individual combat positioning system mentioned in this paper can track effectively and protect his safety. consists of a number portable terminals base station. collect the information keep communicating with station queries terminal location display on map real-time.

According to the characteristics of behind our troops’ logistics support, and puts forward a kind military logistical visualization security technology, integrated use satellite positioning, digital electronic map, RFID technology construct visual platform, analysis key platform detailed, in order realize army supply chain all assets, whole process dynamic, real-time video.

GPU is gaining popularity in various applications due to its preeminent parallel computing power. However, cloud still far from mature, especially resource supplying mode guarantee possible highest yield. These deficiencies significantly impose restrictions on the potential markets of GPU. This paper introduces oversubscription and conducts experiments evaluate performance oversubscribed based cloud-style workloads with different features. The results our demonstrate that performs excellent...