108 Gb/s OFDMA-PON with Polarization Multiplexing and Direct-Detection

Qian, Dayou; Cvijetic, Neda; Hu, Junqiang; Wang, Ting

doi:10.1364/nfoec.2009.pdpd5

Cited by 33 publications

(36 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Optical mm-wave can be gener-ated by external modulators driving by RF signal [6], or using heterodyning by beating two phase-locked and frequency locked lasers, where one of the lasers carries baseband data with transmission information, which generates millimeter-wave carrier signals at base station (BS) using electrical self-mixing technique for reliable down-conversion [7,8]. Moreover, orthogonal frequency division multiplexing (OFDM) as an effective modulation format has received much attention for its application in optical access system recently, such as OFDM modulated passive optical network (PON) [9,10], OFDM based metro access [11,12], and OFDM modulated RoF systems [7,8] because it can provide several Gbit/s broadband transmission with high spectral efficiency, the resistance to variety dispersions and flexibility to dynamically bandwidth. To our knowledge, high-speed transmission over multimode fiber using discrete multitone modulation (DMT) has been proposed and investigated [13].…”

Section: Introductionmentioning

confidence: 99%

Optical thin-film materials with low refractive index for broadband elimination of Fresnel reflection

et al. 2007

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Optical thin-film materials with low refractive index for broadband elimination of Fresnel reflection

et al. 2007

View full text Add to dashboard Cite

“…Figure 3 describes an example about resource allocation of optical time/frequency block distributed to three different ONUs under different time slots and optical subcarriers. In this case, multiple wireless UE data are modulated onto each time/ frequency block, and each block could be allocated to a single ONU, while each ONU could receive several such time/frequency blocks in the same time slot [12,13]. Each optical subcarrier of time/frequency block in Figure 3 could be addressed by a RoF modulation with radio frequency in the same or different wireless radio frequency spectra (e.g., a LTE radio frame frequency spectrum from 2110 to 2170 MHz) [14].…”

Section: Optical Subcarrier Allocation Modelmentioning

confidence: 99%

Co-Channel Interference Cancellation for 5G Cellular Networks Deploying Radio-over-Fiber and Massive MIMO Beamforming

Xu¹

2018

Broadband Communications Networks - Recent Advances and Lessons From Practice

View full text Add to dashboard Cite

In future fifth-generation (5G) wireless cellular networks, distributed massive multipleinput multiple-output (MIMO) techniques will be applied worldwide. Recently, much more challenges on efficient resource allocation to large numbers of user equipment (UE) are raised in order to support their high mobility among different micro-/pico-cells. In this chapter, we propose a framework to enable an optical back-haul cooperation among different optical network units (ONUs) with distributed MIMO techniques in wireless front-haul for next-generation optical-wireless cellular networks. Specifically, our proposal is featured by a downlink resource multi-cell sharing scheme for OFDMA-based passive optical network (PON) supporting radio-over-fiber (RoF). We first consider system architecture with the investigation of related works, and then we propose a co-channel interference mitigation and delay-aware sharing scheme for real-time services allowing each subcarrier to be multi-cell shared by different active ONUs corresponding to different micro-/pico-cells. Furthermore, a heuristic algorithm to mitigate co-channel interference, maximize sharing capacity, and minimize network latency is given by employing the graph theory to solve such sharing problems for future 5G. Finally, simulations are performed to evaluate our proposal. Figure 12. Comparisons of BLER under different time durations (mobility ratio 0.8).Co-Channel Interference Cancellation for 5G Cellular Networks Deploying Radio-over-Fiber and Massive MIMO… http://dx.doi.org/10.5772/intechopen.72727 95

show abstract

“…Owing to their high spectral efficiency, good chromatic dispersion tolerance, flexible and dynamic bandwidth allocation as well as the ability to adapt to frequency dependent channel quality with simple single-tap equalization [4][5][6], the orthogonal frequency division multiplexing (OFDM) based PONs including orthogonal frequency division multiple access (OFDMA), wavelength division multiplexing (WDM)-OFDM-PON, time division multiplexing (TDM)-OFDM-PON and code division multiple access (CDMA)-OFDM PON [7][8][9][10][11] are investigated as promising solutions for future optical access. TDM-OFDM-PON suffers from transmission impairments at higher transmission speeds caused by burst synchronization and interference between different optical network units (ONUs).…”

Section: Introductionmentioning

confidence: 99%