Integrated Optical Wireless Access: Advanced topologies for future access networks

Bock, Carlos; Quinlan, Terence; Thakur, Manoj P.; Walker, S.D.

doi:10.1109/icton.2009.5185073

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…The scalability of the architecture is currently being further investigated to demonstrate transmission of LTE [3] and other wideband emerging standards [15] exploiting overlapping cells concept. To that extent, it is easily extendable to such a topology since it provides signal transparency through the application of FDM.…”

Section: A Network Architecture Overviewmentioning

confidence: 99%

Multi-Wavelength WiMAX–PONs With Overlapping Cells

Milosavljević

Kourtessis

Senior

2011

J. Opt. Commun. Netw.

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An access network architecture integrating standard wireless signal formats over multi-wavelength splitter-PON based on radio over fiber (RoF) technology is demonstrated. Frequency division multiplexing (FDM) is applied to address individual base stations sharing a single wavelength. The extended wavelength band overlay overcomes the need for complex dispersion compensation techniques as it avoids the use of high frequency subcarriers in the FDM window. Also, it achieves enhanced network scalability to previously reported converged architectures as well as reduced component cost. Significantly, extended features of wireless networks have been presented through the application of overlapping cells to overcome the wireless spectrum congestion beyond current deployment scenarios and provide resilience for legacy PONs. To evaluate the network transmission characteristics, multiple IEEE802.16d channels, with 70 Mbits/s downstream and 40 Mbits/s upstream data rates, are frequency shifted around the same RF carrier and transmitted on two different wavelengths. The obtained results has demonstrated EVMs of-31 dB at ONU/BS remote antenna inputs and minimum 10-4 BERs bidirectionally over combined 20km and faded 330m overlapping micro-cells circumference without any error coding or relay techniques. The application of low-cost long-wavelength VCSEL array in upstream for colorless transmission demonstrated 0.7 dB power penalty to the received WiMAX channels in the OLT. Index Terms-Radio-over-Fiber (RoF); Integrated PONwireless access; wireless interoperability for microwave access (WiMAX); I. INTRODUCTION LTHOUGH the escalating demand in bandwidth provision at close subscriber proximity could be widely met by optical technologies, next generation access networks should also provide great flexibility and mobility at ease of last-mile implementation [1]. To that extent convergence of optical and the rapidly growing by means of deployment and standards wireless networking, e.g. worldwide interoperability for microwave access (WiMAX) [2] and long Manuscript received June 17, 2010. This work was supported in part by the ACCORDANCE: A Converged copper-optical-radio OFDMA-based access network with high capacity and flexibility, through the 7th ICT Framework Programme.

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Section: A Network Architecture Overviewmentioning

confidence: 99%

Multi-Wavelength WiMAX–PONs With Overlapping Cells

Milosavljević

Kourtessis

Senior

2011

J. Opt. Commun. Netw.

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“…2. The AP transceiver performs the electro/optical adaptation by means of an ONU transceiver, together with the required RF amplifier [6].…”

Section: Proposed Access Network Architecturementioning

confidence: 99%

“…al. [6], the 480 Mbps error-free transmission rate is achieved over the wireless link at a distance of 1m (indoor) by integrate the WDM/TDM-PON as optical access with Ultra Wide Band (UWB) wireless access point. Also Chen et.…”

Section: Introductionmentioning

confidence: 99%

Performance assessment of a 2 Gb/s hybrid optical-wireless access network

Shaddad

Mohammad

2010

International Conference on Photonics 2010

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The hybrid optical-wireless access network (HOWAN) is a promising architecture for future access networks. It is an optimal combination of an optical backhaul and a wireless front-end for an efficient access network. The HOWAN is proposed that can provide blanket coverage of broadband and flexible connection for end-users. In this paper, the HOWAN architecture is designed based on a WDM / TDM PON at the optical backhaul and a WiFi technology at the wireless front-end. We report performance analysis in terms of the bit-error-rate (BER), eye diagram, and signal-to-noise ratio (SNR) of the HOWAN system. It is accommodating an 8 wavelength channels 32 optical access network / wireless access points (ONU / APs). Our simulations successfully demonstrate that downstream and upstream of 2 Gb/s can be achieved at optical backhaul for each wavelength channel, within a total distance 20 km and at a data rate of 54 Mb/s per ONU / APs along a 100 m outdoor wireless link.

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“…Much research has been targeted toward wireless distribution over passive optical networks (PONs) and various wireless standards including 3G, 3,4 LTE-A, 5 WiFi, [6][7][8] WiMAX, [7][8][9][10][11][12][13][14][15] and UWB [16][17][18][19] have been demonstrated overlaying on PON infrastructure. In addition to these wireless standards, a significant amount of work has also been targeted toward millimeter-wave (mm-wave) wireless signals' distribution.…”

Section: Introductionmentioning

confidence: 99%

Review of physical layer networking for optical-wireless integration

2015

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Abstract. We present a review of physical networking options and enabling system technologies for efficient unification of optical and wireless access backhaul infrastructure. Different physical layer integration architectures are reviewed in conjunction with the possible wireless signal transport schemes. We also review some of our research work as one possible physical layer integration technique using RF-overlay passive optical network incorporating an optical tandem single sideband (OTSSB) modulation scheme for simultaneous transport of wired and wireless signals.

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Integrated Optical Wireless Access: Advanced topologies for future access networks

Cited by 4 publications

References 5 publications

Multi-Wavelength WiMAX–PONs With Overlapping Cells

Multi-Wavelength WiMAX–PONs With Overlapping Cells

Performance assessment of a 2 Gb/s hybrid optical-wireless access network

Review of physical layer networking for optical-wireless integration

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