Demonstration of Wireless Backhauling Over Long-Reach PONs

Milosavljević, Miloš; Thakur, Manoj P.; Kourtessis, Pandelis; Mitchell, John E.; Senior, John M.

doi:10.1109/jlt.2011.2182605

Cited by 25 publications

(8 citation statements)

References 16 publications

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“…Directions for future research include the delay performance analysis of LR-PONs that are integrated with metro-level networks [38]- [42] as well as LR-PONs for wireless backhaul [43].…”

Section: Discussionmentioning

confidence: 99%

Low-Latency Polling Schemes for Long-Reach Passive Optical Networks

Kiaei

Fouli

Scheutzow

et al. 2013

IEEE Trans. Commun.

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Abstract-The increased propagation delay of future longreach passive optical networks (LR-PONs) may lead to a significantly increased idle time and delay if optical network units (ONUs) use conventional report-grant mechanisms. Sophisticated and efficient bandwidth allocation mechanisms are required to cope with the imposed propagation delay in LR-PONs. In this study, we evaluate three dynamic bandwidth allocation (DBA) frameworks in terms of frame (packet) delay; namely, we consider conventional (interleaved) polling for traditional PON and two recently introduced scheduling paradigms for next generation LR-PON, i.e., multi-thread polling (MT-P) and real-time polling (RT-P). We enhance MT-P and RT-P by applying the justin-time framework. Next, we provide an analytical framework for evaluating the end-to-end frame delay in our enhanced MT-P and RT-P frameworks. We compare their performance with conventional polling and double-phase polling and investigate their shortcomings and advantages in an LR-PON setting. The simulation results closely match the analysis for this framework. Also, our results indicate that RT-P significantly reduces frame delay in LR-PONs compared to MT-P and conventional polling frameworks.

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“…Directions for future research include the delay performance analysis of LR-PONs that are integrated with metro-level networks [38]- [42] as well as LR-PONs for wireless backhaul [43].…”

Section: Discussionmentioning

confidence: 99%

Low-Latency Polling Schemes for Long-Reach Passive Optical Networks

Kiaei

Fouli

Scheutzow

et al. 2013

IEEE Trans. Commun.

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“…The conventional optical-fiber-based full duplex system delivers DL and uplink (UL) transmissions over separate dedicated optical fibers without the wavelength reuse scheme [8,9]. On the contrary, some previous research reports on dedicated fibers allocated for DL and UL with the wavelength reuse scheme [10][11][12][13].…”

Section: Proposed Full Duplex Lte Systemmentioning

confidence: 99%

Experimental Full Duplex Simultaneous Transmission of LTE Over a DWDM Directly Modulated RoF System

Kanesan¹,

Ng²,

Ghassemlooy³

et al. 2013

J. Opt. Commun. Netw.

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Abstract-In this paper, we experimentally demonstrate the seamless integration of full duplex system frequency division duplex (FDD) long-term evolution (LTE) technology with radio over fiber (RoF) for eNodeB (eNB) coverage extension. LTE is composed of quadrature phase-shift keying (QPSK), 16-quadrature amplitude modulation (16-QAM) and 64-QAM, modulated onto orthogonal frequency division multiplexing (OFDM) and single-carrier-frequency division multiplexing for downlink (DL) and uplink (UL) transmissions, respectively. The RoF system is composed of dedicated directly modulated lasers for DL and UL with dense wavelength division multiplexing (DWDM) for instantaneous connections and for Rayleigh backscattering and nonlinear interference mitigation. DL and UL signals have varying carrier frequencies and are categorized as broad frequency spacing (BFS), intermediate frequency spacing (IFS), and narrow frequency spacing (NFS). The adjacent channel leakage ratio (ACLR) for DL and UL with 64-QAM are similar for all frequency spacings while cross talk is observed for NFS. For the best case scenario for DL and UL transmissions we achieve error vector magnitude (EVM) values of ∼2.30%, ∼2.33%, and ∼2.39% for QPSK, 16-QAM, and 64-QAM, respectively, while for the worst case scenario with a NFS EVM is increased by 0.40% for all schemes.

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“…The driving force for research in the nextgeneration access networks is the looming problem of capacity crunch instigated by the growth of cellular radio communications and high definition multimedia applications. Hence, next-generation hybrid wireless-optical networks must deal with the transmission of multiple services bundled together with content delivered over a long-reach access network [2]. Video overlay technology provides several benefits to PON operators at the expense of a small incremental cost in the infrastructure [3].…”

Section: Introductionmentioning

confidence: 99%

Full-standard broadcast DVB-T and wireless overlay on legacy and OFDM next-generation FTTH networks

Morant

Llorente

Thakur

et al. 2015

2015 IEEE International Conference on Communication Workshop (ICCW)

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This paper presents the performance evaluation of full-standard wireless signals overlay on two access networks: (i) legacy long-reach networks and (ii) next-generation networks using orthogonal frequency division multiplexing (OFDM) modulation. The proposed bundle of full-standard OFDM wireless signals includes broadcast of ETSI EN 300 744 DVB-T signals and multi-format wireless signals 3GPP long-term evolution (LTE), IEEE 802.16 Worldwide Interoperability for Microwave Access (WiMAX), and ECMA-368 ultra-wide band (UWB). This bundle of OFDM-based signals is transmitted using radio-over-fibre in overlay with: (i) legacy baseband data of a conventional passive optical network (PON) or (ii) a custom OFDM signal providing Gigabit Ethernet (OFDM-GbE) for next-generation access networks. The optimum RF input power level for the combined bundle of signals is evaluated for both downstream (using external transmission) and upstream (using direct modulation). The successful demodulation of all signals confirms the actual possibility of coexistence of multi-format OFDM wireless with legacy baseband data. Also, it is demonstrated that the system with OFDM-GbE can achieve longer optical reach using centralized OFDM compensation. In this case, the possibility of providing video overlay with more DVB-T channels is confirmed for the complete UHF band. Keywords-Radio-over-fibre, fibre-to-the-home (FTTH), orthogonal frequency division multiplexing (OFDM), baseband

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Demonstration of Wireless Backhauling Over Long-Reach PONs

Cited by 25 publications

References 16 publications

Low-Latency Polling Schemes for Long-Reach Passive Optical Networks

Low-Latency Polling Schemes for Long-Reach Passive Optical Networks

Experimental Full Duplex Simultaneous Transmission of LTE Over a DWDM Directly Modulated RoF System

Full-standard broadcast DVB-T and wireless overlay on legacy and OFDM next-generation FTTH networks

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