• Title/Summary/Keyword: XGPON

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Efficient Dynamic Polling method of XGPON1 system (XGPON1 시스템의 효율적인 동적 Polling 방법)

  • Seo, Sang Jun;Han, Man Soo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.05a
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    • pp.747-748
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    • 2013
  • This paper proposes a new dynamic polling method for XGPON1 (10-Gbps-capable passive optical network stage 1). XGPON1 system supports 2.5 Gbps for upstream and 10 Gbps for downstream. In XGPON1 system, if the polling frequency is high, then the efficiency of dynamic bandwidth allocation increases whereas the upstream bandwidth is wasted. The proposed method decreases the upstream bandwidth wastage owing to polling and efficiently increases the polling frequency.

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Dynamic Bandwidth Allocation Algorithm of TWDM PON (TWDM PON의 동적대역할당 알고리즘)

  • Hong, Sung Hak;Han, Man Soo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.05a
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    • pp.743-744
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    • 2013
  • This paper proposes a new DBA (dynamic bandwidth allocation) algorithm for a TWDM PON (time and wave-division multiplexing passive optical network) which is based on XGPON (10-Gigibit-Capable PON). Modifying a DBA algorithm of an XGPON, the proposed algorithm not only allocates the transmission slot but also assigns a wavelength to use for each ONU.

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Dynamic Bandwidth Allocation Algorithm Utilizing Unused Bandwidth for XGPON (XGPON의 여유 대역폭을 활용한 동적대역할당 알고리즘)

  • Jeong, Jong Hoon;Han, Man Soo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.05a
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    • pp.739-740
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    • 2013
  • This paper proposes a new dynamic bandwidth allocation algorithm for XGPON (10-Gigabit-capable passive optical network). The proposed algorithm uses a common service counter for each service class unlike to the existing algorithms. The unused bandwidth of a service class can be used for other service classes to increase bandwidth utilization. We illustrate examples to show the proposed algorithm is superior to existing algorithms.

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Development of Efficient Dynamic Bandwidth Allocation Algorithm for XGPON

  • Han, Man Soo;Yoo, Hark;Lee, Dong Soo
    • ETRI Journal
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    • v.35 no.1
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    • pp.18-26
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    • 2013
  • This paper proposes an efficient bandwidth utilization (EBU) algorithm that utilizes the unused bandwidth in dynamic bandwidth allocation (DBA) of a 10-gigabit-capable passive optical network (XGPON). In EBU, an available byte counter of a queue can be negative and the unused remainder of an available byte counter can be utilized by the other queues. In addition, EBU uses a novel polling scheme to collect the requests of queues as soon as possible. We show through analysis and simulations that EBU improves performance compared to that achieved with existing methods. In addition, we describe the hardware implementation of EBU. Finally we show the test results of the hardware implementation of EBU.

Unused Bandwidth Allocation Method of TWDM PON (TWDM PON의 미사용 대역폭 분배 방법)

  • Hong, Sung Hark;Han, Man Soo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.05a
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    • pp.745-746
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    • 2013
  • TWDM PON (time and wavelength division multiplexed passive optical network) uses multiple wavelengths to transmit packets upstream and downstream. In upstream transmission, if we use only one wavelength, the unused bandwidth is equally distributed to each ONU (optical network unit). In contrast, when multiple wavelengths are used, the unused remainders of wavelengths are different from each other. Therefore, it is difficult to fairly allocate the unused bandwidth to each ONU. This paper proposes a new method to allocate the unused bandwidth to each ONU in TWDM PON which uses multiple wavelengths.

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