Optimum Transmission Window for EPONs With Limited Service

Huang, Huanhuan; Ye, Tong; Lee, Tony Tong

doi:10.1109/access.2019.2914485

Cited by 8 publications

(2 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…10 shows, if A arrives during a busy period, it will experience 1 + N O M complete vacation periods before it can be served; otherwise, it will undergo N O M complete vacation periods. Using the technique in [29], we can obtain the average number of complete vacation periods that a packet experiences as follows:…”

Section: Delay Performancementioning

confidence: 99%

Throughput and Delay Analysis of Slotted Aloha with Batch Service

Huang¹,

Ye²,

Lee³

2019

Preprint

Self Cite

View full text Add to dashboard Cite

In this paper, we study the throughput and delay performances of the slotted Aloha with batch service, which has wide applications in random access networks. Different from the classical slotted Aloha, each node in the slotted Aloha with batch service can transmit up to M packets once it succeeds in channel competition. The throughput is substantially improved because up to M packets jointly undertake the overhead due to contention. In an innovative vacation model developed in this paper, we consider each batch of data transmission as a busy period of each node, and the process between two successive busy periods as a vacation period. We then formulate the number of arrivals during a vacation period in a renewal-type equation, which characterizes the dependency between busy periods and vacation periods. Based on this formulation, we derive the mean waiting time of a packet and the bounded delay region for the slotted Aloha with batch service. Our results indicate the throughput and delay performances are substantially improved with the increase of batch size M , and the bounded delay region is enlarged accordingly. As M goes to infinity, we find the saturated throughput can approach 100% of channel capacity, and the system remains stable irrespective of the population size and transmission probability.

show abstract

Section: Delay Performancementioning

confidence: 99%

Throughput and Delay Analysis of Slotted Aloha with Batch Service

Huang¹,

Ye²,

Lee³

2019

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…It was noted that our previous study, which utilized the maximum transmission window (MTW) [19] rule in an MPCP with OLT scheduling to allow ONUs to enter intercycle sleep mode, was only suitable for high-load traffic. The power consumption of medium to high traffic still hovers at a higher level because the design of such a scheme can only be triggered during high-load traffic.…”

Section: Introductionmentioning

confidence: 99%

A Loading-Aware TDMA Sleep Scheme to Improve Power Consumption Performance on Medium to High Traffic for NG-EPON Networks

Liu

Wu²

2022

Sustainability

View full text Add to dashboard Cite

The inter-cycle sleep design previously proposed as a power-saving scheme for next-generation Ethernet passive optical networks (NG-EPONs) is able to effectively decrease the power consumption of heavy-load traffic. However, with a medium to high traffic load, these networks may still suffer from a high level of power consumption if no enhanced mechanisms are used. It was noted that the optical line terminal (OLT) often fully opens all communication channels at a medium to heavy load. Moreover, the number of opened channels was changed cyclically according to the traffic loading status. Accordingly, optical network units (ONUs) may be frequently allocated to different channels with changing loads. This may lead to inefficient operation and result in significant channel tuning delays. We thus propose a loading-aware time-division multiple access (TDMA) mechanism that allows the OLT to reserve a maximum bandwidth for each ONU when the network experiences heavy-load traffic. The performance results of our simulations reveal that the proposed scheme is able to reduce power consumption for targeted medium to high loads since ONUs under such loads can extend their sleep time because the cycle length is maximized. Moreover, the total delay is maintained at a relatively low level after applying the proposed scheme since the tuning delay is reduced significantly; however, the transmission delay is slightly increased due to the increased cycle length.

show abstract