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Volume Diagnosis is a proven methodology to significantly improve the yield enhancement rates. One of the key factors of success to this methodology is being able to perform diagnosis on hundreds to thousands of failing dies using a limited amount of computational resource in a tractable time. This paper presents a new Multiple Device Diagnosis (MDD) system to significantly improve the throughput...
Increasingly, the application providers are using a separate fault management system that offers out-of-the-box monitoring and alarms support for application instances. A fault management system is usually distributed in nature and consists of a set of management components that does both fault detection and can trigger actions, for example, automatic restart of monitored components. Such a distributed...
With the development of embedded devices, elevator group systems that manage elevators can be designed in an intelligent way. In the design of elevator group systems, one of the most important problems is to determine the “range assignment” for each elevator, which indicates the floors that an elevator will serve. In reality, the traffic loads of a building are different in terms of time periods,...
The paper addresses design of a clean grain throughput observer for a combine harvester, i.e. delay free yield sensing. The aim is to predict grain throughput changes using the forward speed and a throughput sensor in the feederhouse. By utilising a grain flow model and sensor fusion an estimate of the current grain throughput is obtained, hence the effect from the lag in the momentary yield sensor...
Contention-based transmission is a promising solution for small packet traffic in the fifth generation mobile networks (5G). Packet segmentation is applied to efficiently support diverse services with relative fixed transport block (TB) setting. The packet segmentation defined by LTE RLC Unac-knowledged Mode (UM) is used in the study. First, we determine the header overhead of the segmentation. Then...
This paper deals with the traffic signal control problem. More specifically it investigates the impact at a network level of simple dynamic local traffic control policies. A dynamic route swapping rule is adopted to model the behavioral response of the travellers to signal changes, while a dynamic signal control swapping rule based on an equi-pressure policy is used to implicitly consider the flow...
While 3GPP has been developing NB-IoT, the market of Low Power Wide Area Networks has been mastered by cheap and simple Sigfox and LoRa/LoRaWAN technologies. Being positioned as having an open standard, LoRaWAN has attracted also much interest from the research community. Specifically, many papers address the efficiency of its PHY layer. However MAC is still underinvestigated. Existing studies of...
In this paper we propose a load balancing algorithm to increase the availability of network resources during peak local loads in wireless cellular networks. We simulate a network behavior in normal mode and with using the proposed method.
In this paper, we investigate the energy efficiency (EE) and spectral efficiency (SE) tradeoff in multi-cell heterogeneous networks (HetNets). Our objective is to maximize both EE and SE of the network while satisfying the rate requirement of users. We use multi-objective optimization techniques to define the objective function. We propose a three-stage algorithm in this paper. First, we select the...
Human and animal societies exhibit complex cognitive and social processes of coordination, cooperation, and competition among their members. Among other functions, these processes can facilitate fairer sharing of resources among community members and enhance individual survival outcomes. In this work, three bio-socially inspired models for secondary users of spectrum in cognitive radio networks are...
We investigate the problem of joint AP coverage adjustment and user association optimization for load balancing in multi-rate WLANs in this paper. We first divide the problem into two sub-problems and then formulate them as mixed integer linear programming models, which aim to minimize the AP utilization of the most congested AP while satisfying users' traffic demands. Then we design two corresponding...
Computer architects use a variety of workloads to measure system performance. For many workloads, the workload configuration determines the stress applied to the system and the corresponding performance behavior. Therefore, architects must make great efforts to explore and find the correct workload configuration before performing detailed analysis. However, such explorations become impossible for...
Effective Utilization of Resources and throughput computation is an important consideration in using cloud resources. Each resource is allocated by the tasks and each resource has virtual machines to handle the subtasks of use cases. The cost performance analysis is done using the markov model and the Server Allocation Matrix (SAM). Resource allocation in cloud computing System is a new dimension...
The efficient allocation of multi-interface multi-channel Wireless Mesh Network channel resources is a hot topic recently. Effective channel management mechanisms need to be designed to ensure the full and efficient use of channel resources. In this paper, combined with the channel load that network buyers perceived, the channel reassignment problem of multi-interface multi-channel Wireless Mesh Network...
We propose a novel distributed downlink technique for proportional fairness optimization in load coupled orthogonal frequency multiple access (OFDMA) networks where the power allocation, the rate allocation and resources assignment are jointly optimized. Building upon recent results on nonlinear interference models for OFDMA-based wireless systems, we pose the problem of finding proportionally fair...
Recently, adoption of Flash based devices has become increasingly common in all forms of computing devices. Flash devices have started to become more economically viable for large storage installations like datacenters, where metrics like Total Cost of Ownership (TCO) are of paramount importance. Flash devices suffer from write amplification (WA), which, if unaccounted, can substantially increase...
Underwater sensor networks play a great role in research areas by gathering knowledge about the inaccessible parts of the underwater. The sensory nodes in the network aid us by performing real time data acquisition which is needed to forecast different natural calamities. However communication in underwater with high success rate is quiet challenging because of the nature of the environment. Due to...
Energy harvesting (EH) enabled relaying has attracted lots of interests recently, as the network energy consumption can be reduced and the coverage range can be extended simultaneously. In most existing literatures, the Harvest-Store-Use (HSU) model is utilized to describe the energy flow behavior of the EH system. However, the half-duplex (HD) constraint of HSU that harvested energy can only be used...
Energy harvesting (EH) enabled relaying has attracted considerable attentions as an effective way to prolong the operation time of energy-constrained networks and extend coverage beside desired survivability and rate of transmission. In most existing literatures, the Harvest-Store-Use (HSU) model is utilized to describe the energy flow behavior of the EH system. However, the half-duplex (HD) constraint...
Open Shortest Path First (OSPF) is a popular routing protocol for the Internet services. OSPF causes network congestion if specific path becomes bottle neck links. However, OSPF can't avoid this congestion dynamically. In this paper, we propose the routing method using available bandwidth and degree. It is confirmed that the proposed method shows lower packet loss rate, shorter transmission time and...
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