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We propose a spectrum utility based WiFi offloading scheme on the edge of cellular networks, implemented with non-orthogonal multiple access (NOMA) techniques. In our proposed scheme, we aim to optimize the spectrum utility, obtained by service providers, through power allocation and offloading ratio. With practical constructions of the cost functions on spectrum, we define the spectrum utility mathematically,...
The information-centric network techniques enable the in-network caching mechanism to cache the popular data contents in the mobile devices. Even though each mobile device's caching memory can be limited, caching in mobile devices offers the great potential of caching capability because of the massive mobile devices. Using caching in mobile devices, a mobile user can obtain its requested files from...
We propose an energy-efficient joint bandwidth and power allocation scheme for heterogeneous Long Term Evolution (LTE) and WiFi multi-homing networks, where multi- mode user terminals can transmit their traffic data by employing both LTE base station and WiFi access point. Considering the different scenarios of terminals, we divide the mobile users of interest into two groups based on their locations,...
We address secure resource allocation for an OFDMA cooperative cognitive radio network (CRN) with energy harvesting (EH) capability. In the network, one primary user (PU) cooperates with several untrusted secondary users (SUs) with one SU transmitter and several SU receivers, where the SU transmitter and all SU receivers may overhear the PU transmitter's information while all SU receivers may eavesdrop...
Elasticity is a key component of modern cloud environments and monitoring is an essential part of this process. Monitoring demonstrates several challenges including gathering metrics from a variety of layers (infrastructure, platform, application), the need for fast processing of this data to enable efficient elasticity and the proper management of this data in order to facilitate analysis of current...
Objective:To explore the effect of intraoperative parathyroid hormone (IOPTH) monitoring in parathyroid-ectomy for Primary hyperparathyroidism. Method:The clinical data of 41 PHPT patients who received IOPTH monitoring (IOPTH group) during surgery from January 2009 to December 2014 were retrospectively analyzed. The clinical manifestation, examination and changes of parathyroid hormone and Calcium...
Virtual cluster is widely used in the satellite ground system, how to improve the efficiency of resource scheduling as the key to the entire system. This paper proposed a resource scheduling method with rough set for virtual cluster. Firstly, the resource domain of the target server is determined according to the rough set theory. Then, the rough set parameter calculation is performed on the server...
We investigate the energy efficiency (EE) maximization problem under the scenario of Device-to-Device (D2D) communications underlaying cellular networks. By jointly considering time-varying channels and stochastic arrivals, we propose a distributed power allocation algorithm for both D2D user groups (DUGs) and cellular user terminals (CUTs) with long- term quality of service (QoS) provision. To effectively...
We address the resource allocation problem for energy- harvesting (EH) based OFDMA cooperative overlay cognitive radio networks with multiple primary users (PUs) and multiple secondary users (SUs), where PUs and SUs cooperate in terms of both information transmission and energy harvesting. Specifically, SU transmitters first apply the power splitting tech- nique to harvest energy from signals radiated...
To support the emerging next era of mobile wireless networks, researchers have made a great deal of efforts in investigating promising techniques in multimedia services - the statistical quality-of-service (QoS) technique, which has been proved to be effective in statistically guaranteeing delay-bounded video transmissions over the time-varying wireless channels. On the other hand, as the 5G- promising...
The impulsive noise effect is one of the most dominant factors to cause performance degradation for power-line communication (PLC) links. Most reported literatures characterize such an impulsive noise based on the Bernoulli-Gaussian or Middleton's approach. However those models may not truly depict the noise characteristics of the impulses with stable property. The symmetric alpha-stable (SαS)...
Peer-to-peer (P2P) cache techniques for information-centric networks (ICN) provide the local data resources services for mobile users by storing the popular data contents in their peer mobile users' cache stations, so that a mobile user can obtain these data contents directly from its peer mobile users instead of the remote service provider. Retrieving the requested data content from the nearby storage...
To improve the spectrum utilization and enable flexible waveform for 5G, a new waveform framework, named filtered OFDM (f-OFDM), has been introduced in previous study. In the past year, f-OFDM was verified for the first-time in a 5G joint trial by NTT DOCOMO and Huawei in Chengdu, China. Here in this paper, more details on f-OFDM including the filter design and the implementation are discussed, together...
Cooperative communication is an efficient technique for mobile wireless networks supporting information transmission through relay nodes, which forward the signal received from a source node to its destination. Applying the cooperative communication in wireless networks can significantly improve the network performance. One of the most important challenges is how to efficiently allocate the access...
The newly imposed heterogeneous statistical delay- bounded quality of service (QoS) provisioning, which refers to the different/variable delay-bounded QoS guarantees among different wireless links, for the fifth-generation (5G) mobile multimedia wireless networks has received much research attention recently. The heterogeneous statistical delay- bounded QoS provisioning can be classified into two...
As a critical technique to support the multimedia services - the major traffic in cooperative cognitive radio networks (CRNs), the statistical quality-of-service (QoS) technique has been proved to be effective in statistically guaranteeing delay-bounded video transmissions over the time- varying wireless channels. On the other hand, in modern cooperative CRNs, the full-duplex spectrum sensing (FD-SS)...
Information-centric network technique is developed to reduce duplicate transmissions for popular data contents by adopting caching strategy and enabling mobile users to access popular data contents from cache stations of nearby network gateways. In current information-centric wireless networks, one popular data content can be stored in multiple cache stations and requested by multiple mobile users...
The software defined network (SDN) has emerged as an efficient network technology capable of supporting the dynamic nature of network functions while lowering the operating costs through simplified hardware, software, and management. The SDN is an efficient implementing technique for network function virtualization, because SDN maximizes network utilization by decoupling the wireless network infrastructure...
In this paper, we present a smart service robotic system based on cloud computing services. The design and implementation of infrastructure, computation components and communication components are introduced. The proposed system can alleviate the complex computation and storage load of robots to cloud and provide various services to the robots. The computation components can dynamically allocate resources...
This paper introduces Aicyber's system for IALP 2016 shared task, the Dimensional Sentiment Analysis of Chinese Words. The system is an ensemble of several boosted one layer neural networks, each one is trained on a different type of Chinese word vector. Our best system mainly use position-based character-enhanced word embedding and FastText as word vectors and achieve Mean Absolute Error 0.577(1st)...
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