• Title/Summary/Keyword: Dynamic Zone Allocation

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Dynamic Resource Allocation Scheme for Interference Mitigation in Multi-Hop Relay Networks (멀티 홉 릴레이 네트워크에서 간섭을 완화하는 동적 자원 할당 기법)

  • An, Kwanghoon;Kim, Taejoon
    • KIPS Transactions on Computer and Communication Systems
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    • v.5 no.5
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    • pp.103-108
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    • 2016
  • In this paper, we propose a resource allocation scheme that guarantees transmission rate for each mobile stations by mitigating interference between a base station-to-mobile station link and a relay station-to-mobile station link. Specifically, we dynamically adjust the boundary between access zone and relay zone using signal to interference plus noise ratio. Moreover, we cluster the mobile stations under sever interference and manage the channel quality of these mobile stations by allocating additional radio resource. Our simulation results show that the proposed scheme can improve the efficiency of radio resources and ensure fairness among mobile stations.

A Burn-in Test System with Dynamic Bone Allocation (동적 존 할당이 가능한 번인 시험 시스템)

  • Oh, Sam-Kweon;Shin, Joong-Han
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.1
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    • pp.75-80
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    • 2009
  • Bum-in test is one for eliminating semiconductor devices that are subject to early failures and other operational problems; it is usually carried out on the devices by imposing severe test conditions such as elevated voltages, temperatures, and time. In order for such a test to be performed, each burn-in board having devices to be tested, needs to be inserted into a corresponding slot. A set of such slots is called a zone. The slots comprising a zone can only have the burn-in boards with the devices of the same type. In order to test many different types of semiconductor devices, it is desirable to build a burn-in test system to have as many zones as possible. A zone controller controlling a zone, is a device that performs a burn-in test and collects test results. In case of existing systems, each zone controller takes care of a zone that consists of a fixed number of slots. Since a zone controller is, in most cases, embedded into a workstation that controls the overall testing process, adding new zone controllers is restricted by the spaces for them. As a way to solve or alleviate these problems, a dynamic zone system in which the number of slots in a zone can be dynamically allocated, is presented. This system maximizes the efficiency of system utilization, by altering the number of slots and hence minimizing the idle slots of a zone. In addition, all the test operations being performed must be aborted for maintenance in existing systems. In dynamic zone systems, however, a separate and independent maintenance is allowed for each slot, as long as the main power supply system has no problem.

Distance and Probability-based Real Time Transmission Scheme for V2V Protocol using Dynamic CW allocation (V2V 프로토콜에서 실시간 전송을 위한 동적 CW 할당 기법)

  • Kim, Soo-Ro;Kim, Dong-Seong;Lee, Ho-Kyun
    • Journal of the Institute of Electronics and Information Engineers
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    • v.50 no.2
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    • pp.80-87
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    • 2013
  • This paper proposes a CW (Contention window) allocation scheme for real-time data transmission of emergency data on VANET (Vehicle to vehicle Ad hoc Network, V2V) protocol. The proposed scheme reduces the probability of packet collisions on V2V protocol and provides bandwidth efficiency with short delay of emergency sporadic data. In the case of high density traffic, the proposed scheme provides a decrease of recollision probability using dynamic CW adjustments. For the performance analysis, a throughput, end-to-end delays, and network loads were investigated on highway traffic. Simulation results show the performance enhancements in terms of the throughput, end-to-end delays, and network loads.