| 1. |
- Pang, Xiaodan, 1986-, et al.
(författare)
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A novel reconfigurable ultra-broadband millimeter-wave photonic harmonic down-converter
- 2011
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Ingår i: 2011 IEEE International Topical Meeting on Microwave Photonics - Jointly Held with the 2011 Asia-Pacific Microwave Photonics Conference, MWP/APMP 2011. - 9781612847184 ; , s. 397-400
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Konferensbidrag (refereegranskat)abstract
- We propose a novel ultra-broadband reconfigurable photonic harmonic mixer functioning as a millimeter-wave down-converter for multigigabit wireless applications. Based on frequency conversion implemented by an optical frequency comb generator, the photonic mixer is able to operate up to 100GHz without high frequency RF components. The feasibility of the approach is experimentally validated by down-converting an up to 5Gbps fiber-wireless quadrature phase shift keying (QPSK) signal from W-band (102.5GHz) to S-band (2.5GHz). The frequency response and the conversion efficiency are investigated. The experimental results show that the bandwidth of the proposed mixer is highly reconfigurable by adjusting the frequency comb generator.
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| 2. |
- Pang, Xiaodan, 1986-, et al.
(författare)
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Channel measurements for a optical fiber-wireless transmission system in the 75–110 GHz band
- 2011
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Ingår i: 2011 IEEE International Topical Meeting on Microwave Photonics - Jointly Held with the 2011 Asia-Pacific Microwave Photonics Conference, MWP/APMP 2011. - : Institute of Electrical and Electronics Engineers (IEEE). - 9781612847184 ; , s. 21-24
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Konferensbidrag (refereegranskat)abstract
- We report on measured optical fiber W-band wireless channel characteristics such as frequency response, channel loss and fading, directivity, channel capacity and phase noise. Our proposed system performs a sextuple frequency up-conversion after 20 km of fiber transmission, followed by a W-band wireless link. Our experimental measurements are intended to provide engineering rules for designing hybrid multi-gigabit W band transmission links.
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| 3. |
- Zhao, Ying, et al.
(författare)
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Experimental demonstration of 5-Gb/s polarization-multiplexed fiber-wireless MIMO systems
- 2011
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Ingår i: 2011 IEEE International Topical Meeting on Microwave Photonics - Jointly Held with the 2011 Asia-Pacific Microwave Photonics Conference, MWP/APMP 2011. - : IEEE. - 9781612847184 ; , s. 13-16
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Konferensbidrag (refereegranskat)abstract
- We experimentally demonstrate a 5-Gb/s fiber-wireless transmission system combining optical polarization-division-multiplexing (PDM) and wireless multiple-input, multiple-output (MIMO) spatial multiplexing technologies. The optical-wireless channel throughput is enhanced by achieving a 4b/s/Hz spectral efficiency. Based on the implementation of constant modulus algorithm (CMA), the 2x2 MIMO wireless channel is characterized and adaptively equalized for signal demodulation. The performance of the CMA-based channel adaptation is studied and it is revealed that the algorithm is particularly advantageous to the MIMO wireless system due to the inter-channel delay insensitivity. The hybrid transmission performance of 26km fiber and up to 2m wireless MIMO is investigated.
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| 4. |
- Zibar, Darko, et al.
(författare)
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Hybrid optical fibre-wireless links at the 75–110 GHz band supporting 100 Gbps transmission capacities
- 2011
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Ingår i: 2011 IEEE International Topical Meeting on Microwave Photonics - Jointly Held with the 2011 Asia-Pacific Microwave Photonics Conference, MWP/APMP 2011. - 9781612847184 ; , s. 445-449
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Konferensbidrag (refereegranskat)abstract
- We present a photonic generation and down-conversion method for realizing a 40Gbps wireless link at the 75-110 GHz band exploiting the recent advances in photonic coherent detection technologies and digital signal processing. Furthermore, we analyze the capacities of hybrid optical fiber-wireless links at the 75-110GHz band, and propose several approaches to overcome the challenges towards 100Gbps wireless capacity.
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