Energy efficient and latency aware TDM-PON for local customer internetworking

Newaz, S. H. Shah; Mohammed, Alaelddin Fuad Yousif; Lee, Gyu Myoung; Choi, Jun Kyun

doi:10.1109/inm.2015.7140464

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…On the other hand, the authors of [30,31] identified that optical access networks can be useful in the next few decades to support edge computing technologies. In [32], the authors studied the performance of centralized and decentralized bandwidth allocation algorithms in a long-reach optical access network to investigate the feasibility of computation offloading to edge-computing servers and develop an analytical framework to validate against simulated results.…”

Section: Related Workmentioning

confidence: 99%

An Analytical Cost-Optimal Cloudlet Placement Framework over Fiber-Wireless Networks with Quasi-Convex Latency Constraint

2019

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To meet the low-latency constraints arising from future smart mobile devices, Internet-of-Things, and 5G applications, major interest is currently given to the integration of centralized cloud computing and distributed edge computing infrastructures to deliver higher performance and reliability to edge devices in accessing mobile cloud services. The three-tier network architecture arising from cloud, cloudlet, and edge-devices can handle miscellaneous latency requirements for both latency-sensitive and latency-tolerant applications more efficiently than conventional two-tier networks. In this paper, we primarily focus on the static cloudlet network planning problem and propose an analytical hybrid cost-optimization framework for optimal cloudlet placement. We formulate this problem as a convex optimization problem and solve by using Karush-Kuhn-Tucker (KKT) conditions, and show that this framework can be evaluated without any scalability issues observed with integer programming based frameworks for large datasets. Moreover, we derive user-friendly closed form expressions that provide a first-hand estimation of cloudlet deployment cost depending on a few important network parameters like split-ratio, population density, and network bandwidth. Finally, we also show that the optimal solution of this analytical framework can be considered as a tight lower bound of the optimal solutions of integer programming based frameworks and makes a better cloudlet installation cost estimation compared to other existing frameworks.Electronics 2019, 8, 404 2 of 18 of cloudlet computing similar to fog and mobile-edge computing, where cloudlets are considered as trusted, resource-rich computer or cluster of computers. Nonetheless, cloudlets are designed to be self-managing and function with low-context-awareness. Hence, they are most suitable for deployment in adversarial environments [3].The authors of [4] showed that the system performance in terms of expected latency for the requested jobs from a single-hop cloudlet server is always better than a distant cloud server for low-latency applications. Thus, the optimal placement of cloudlets over wireless access networks seemed to be an important research problem to enhance the system performance. Along with the wireless access networks, researchers started to focus on optical and fiber-wireless (FiWi) access networks for edge-computing solutions deployment due to their wide deployment coverage, low cost per bit, very high data transmission bandwidth, efficient network virtualization and network scalability [5]. The time-division multiplexed passive optical network (TDM-PON) has also been considered as a front/back-haul support for wireless access network, i.e., access technologies like Radio-over-Fiber (RoF), WiFi, LTE-A and millimeter-wave (mmWave) can be integrated with optical network units (ONUs) for a higher user coverage [6].A static cloudlet placement framework considers that the network is static in time, i.e., it does not consider user mobility and virtual machine (VM) mobil...

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Section: Related Workmentioning

confidence: 99%

An Analytical Cost-Optimal Cloudlet Placement Framework over Fiber-Wireless Networks with Quasi-Convex Latency Constraint

2019

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“…We evaluate their performance results using our outstanding TDM-PON OPNET Modular based simulator model (this model presented in [12] and used in [8], [22]). For performance evaluation, we assume that the OLT assigns always a fixed sleep interval period T s for an ONU similar to [11].…”

Section: Performance Evaluationmentioning

confidence: 99%

Early Wake-Up Decision Algorithm for ONUs in TDM-PONs With Sleep Mode

Mohammed

Newaz

Uddin

et al. 2016

J. Opt. Commun. Netw.

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Abstract-Recent IEEE and ITU-T standards for TDM-Passive Optical Network (TDM-PON) with sleep mode recommend that the Optical Line Terminal (OLT) in a TDM-PON should be in charge of invoking an Optical Network Units (ONU) to move into sleep state in absence of frames. It is considered that, on upstream frame arrival, a sleeping ONU can leave sleep state, in which an ONU turns off its transmitter or both transmitter and receiver immediately, prior to its assigned sleep interval length. In this paper, we refer to this approach as immediate early wakeup (IMEW). According to the standards, the OLT may or may not allow an ONU to trigger early wake-up function (EWF) on upstream frames arrival. If the OLT does not allow EWF (not support early wake-up (NSEW)), an ONU should stay in sleep state during its assigned sleep duration and buffer all the upstream frames while it is in this state. In IMEW, upstream frames experience small delay but ONU's energy consumption increases remarkably. Conversely, in NSEW, an ONU consumes less energy compared to IMEW at the price of increasing upstream frame delay and possibility of its buffer overflow. In this paper, the limitations of IMEW and NSEW have motivated us to propose a novel Early Wake-up Decision (EWuD) algorithm which aims at meeting upstream frame delay requirement while reducing ONUs' energy consumption as much as possible. The role of EWuD algorithm is to select an appropriate time for triggering EWF taking into consideration two factors: (1) buffer overflow probability and (2) delay requirement violation of upstream frames. We evaluate EWuD performances using our TDM-PON OPNET Modular based simulation model under wide range of scenarios. Findings demonstrate that our proposed EWuD can successfully meet delay requirement of all upstream frames while reducing ONU's energy consumption significantly.

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“…Passive optical network (PON) technology is considered to be one of the ideal choices for network operators for expanding their footprints in access network segments because PON technology introduces several benefits including high scalability, rich bandwidth capacity, cost-effective services and relatively low energy consumption compared to other access network technologies [1], [2]. Due to wide penetration of mobile devices and stupendous growth of rich Internet applications, PON is considered to be an ideal choice as backhaul for wireless access segment.…”

Section: Introductionmentioning

confidence: 99%

Towards realizing the importance of placing fog computing facilities at the central office of a PON

Newaz

Suhaili

Lee

et al. 2017

2017 19th International Conference on Advanced Communication Technology (ICACT)

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Abstract-This paper highlights the importance of accommodating Fog computation capability in a Passive Optical Network (PON). Fog computation is referred to as a decentralized computing infrastructure at the network access segment so as to facilitate computation capability closer to end users. PON is seen to be one of the key players in expansion of communication network. PON has paved the way in realizing high speed broadband Internet access to the end users. This paper presents an architectures, namely Fog Co-located Optical Line Terminal (FC-OLT). The FC-OLT architecture is the first effort towards presenting an integrated architecture of Fog computation facilities and PON. This architecture is presented considering Time Division Multiplexing (TDM)-PON (TDM-PON) topology. Along with explaining importance of this architecture in improving QoS/QoE parameters, we point out several important research issues in order to provide direction for future research. Initial performance measurement of FC-OLT presented in this paper reveals that FC-OLT architecture can contribute a great deal of in improving traffic performance.

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Energy efficient and latency aware TDM-PON for local customer internetworking

Cited by 5 publications

References 14 publications

An Analytical Cost-Optimal Cloudlet Placement Framework over Fiber-Wireless Networks with Quasi-Convex Latency Constraint

An Analytical Cost-Optimal Cloudlet Placement Framework over Fiber-Wireless Networks with Quasi-Convex Latency Constraint

Early Wake-Up Decision Algorithm for ONUs in TDM-PONs With Sleep Mode

Towards realizing the importance of placing fog computing facilities at the central office of a PON

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