Abstract

This paper, for the first time to our knowledge, introduces a power control technique for radio-over-fiber (RoF) downlinks in frequency division multiplexing (FDM) cellular communication systems. The power control technique, which has been widely used in traditional wireless systems, is to radiate sufficient power to establish an adequate service for a particular distance. Due to RoF link nonlinearities, RoF systems can be limited by nonlinear distortion that is dependent on the input RF power. The power control technique can manage the input power of RF signals to the RoF links, and thus nonlinear distortion and interchannel interference can be diminished. In this paper, we theoretically analyze the necessity of power control in FDM-RoF systems and then propose a simple power control algorithm. Finally, the proposed power control algorithm is verified in four- and nine-channel orthogonal frequency division multiplexing ultrawideband (OFDM UWB) wireless systems with RoF distribution.

© 2010 Optical Society of America

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References

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  1. T. Kurniawan, A. Nirmalathas, C. Lim, D. Novak, R. Waterhouse, “Performance analysis of optimized millimeter-wave fiber radio links,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 921–927, Feb. 2006.
    [CrossRef]
  2. T. Niiho, M. Nakaso, K. Masuda, H. Sasai, K. Utsumi, M. Fuse, “Transmission performance of multichannel wireless LAN system based on radio-over-fiber techniques,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 980–989, Feb. 2006.
    [CrossRef]
  3. H. Viittala, M. Hämäläinen, J. Iinatti, “Comparative studies of MB-OFDM and DS-UWB with co-existing systems in AWGN channel,” in 17th Annu. IEEE Int. Symp. on Personal, Indoor and Mobile Radio Communications (PIMRC’06), 2006, pp. 1–5.
  4. Z. Xu, J. Yu, X. Zhang, “Electroabsorption modulator frequency down-conversion for uplink radio-over-fiber,” IEEE Photon. Technol. Lett., vol. 20, no. 22, pp. 1875–1877, 2008.
    [CrossRef]
  5. H. Chen, T. Wang, M. Li, M. Chen, S. Xie, “Optically tunable multiband UWB pulse generation,” Opt. Express, vol. 16, no. 10, pp. 7447–7452, May 2008.
    [CrossRef] [PubMed]
  6. Z. Xu, X. Zhang, J. Yu, “Frequency upconversion of multiple RF signals using optical carrier suppression for radio over fiber downlink,” Opt. Express, vol. 15, no. 25, pp. 16737–16747, 2007.
    [CrossRef] [PubMed]
  7. Z. Xu, Y. Zhou, “Multifrequency all-optical upconversion without cross talk in a radio-over-fiber system by using an I/Q modulator,” J. Opt. Commun. Netw., vol. 2, no. 4, pp. 192–195, 2010.
    [CrossRef]
  8. J. Zander, “Distributed co-channel control in cellular radio systems interference,” IEEE Trans. Veh. Technol., vol. 41, no. 3, pp. 305–311, Aug. 1992.
    [CrossRef]
  9. J. Sun, V. Nitin, “A power control MAC protocol for ad hoc networks,” in Proc. of the Annu. Int. Conf. on Mobile Computing and Networking, MOBICOM, 2002, pp. 36–47.
  10. R. W. Nettleton, H. Alavi, “Power control for spread-spectrum cellular mobile radio system,” in Proc. IEEE Vehicular Technology Conf., VTC-83, 1983, pp. 242–246.
  11. D. Olsen, R. Heymann, “Controlling satellite communication system unwanted emissions in congested RF spectrum,” Proc. SPIE, vol. 6683, pp. 66830B-1–66830B-13, 2007.
    [CrossRef]
  12. J. Wiart, C. Dale, A. V. Bosisio, A. Le Cornec, “Analysis of the influence of the power control and discontinuous transmission on RF exposure with GSM mobile phones,” IEEE Trans. Electromagn. Compat., vol. 42, no. 4, pp. 376–385, Nov. 2000.
    [CrossRef]
  13. W. Bai, H. Yang, Z. Bu, “Distributed power control algorithm with the aid of access port,” in Communications, Circuits and Systems. Conf, 2004, vol. 1, p 438–442.
  14. J. M. Aein, “Power balancing in systems employing frequency reuse,” COMSAT Tech. Rev., vol. 3, no. 2, pp. 277–99, Fall 1973.
  15. A. Batra, J. Balakrishnan, G. R. Aiello, J. R. Foerster, A. Dabak, “Design of a multiband OFDM system for realistic UWB channel environments,” IEEE Trans. Microwave Theory Tech., vol. 52, no. 9, pp. 2123–2138, Sept. 2004.
    [CrossRef]
  16. Federal Communications Commission, “First report and order, revision of part 15 of the commission’s rules regarding ultra-wideband transmission systems,” ET Docket 98–153, Feb. 2002.
  17. E. I. Ackerman, C. H. Cox, “RF fiber-optic link performance,” IEEE Microw. Mag., vol. 2, pp. 50–58, Dec. 2001.
    [CrossRef]
  18. N. Horvath, I. Frigyes, “Effects of the nonlinearity of a Mach-Zehnder modulator on OFDM radio-over-fiber transmission,” IEEE Commun. Lett., vol. 9, no. 10, pp. 921–923, Oct. 2005.
    [CrossRef]
  19. ECMA-368, “High rate ultra wideband PHY and MAC standard,” Dec. 2005.
  20. L. Lindh, “Nokia Research Center proposal for the modulation accuracy in IEEE 802.16,” May 2001.

2010 (1)

2008 (2)

H. Chen, T. Wang, M. Li, M. Chen, S. Xie, “Optically tunable multiband UWB pulse generation,” Opt. Express, vol. 16, no. 10, pp. 7447–7452, May 2008.
[CrossRef] [PubMed]

Z. Xu, J. Yu, X. Zhang, “Electroabsorption modulator frequency down-conversion for uplink radio-over-fiber,” IEEE Photon. Technol. Lett., vol. 20, no. 22, pp. 1875–1877, 2008.
[CrossRef]

2007 (2)

D. Olsen, R. Heymann, “Controlling satellite communication system unwanted emissions in congested RF spectrum,” Proc. SPIE, vol. 6683, pp. 66830B-1–66830B-13, 2007.
[CrossRef]

Z. Xu, X. Zhang, J. Yu, “Frequency upconversion of multiple RF signals using optical carrier suppression for radio over fiber downlink,” Opt. Express, vol. 15, no. 25, pp. 16737–16747, 2007.
[CrossRef] [PubMed]

2006 (2)

T. Kurniawan, A. Nirmalathas, C. Lim, D. Novak, R. Waterhouse, “Performance analysis of optimized millimeter-wave fiber radio links,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 921–927, Feb. 2006.
[CrossRef]

T. Niiho, M. Nakaso, K. Masuda, H. Sasai, K. Utsumi, M. Fuse, “Transmission performance of multichannel wireless LAN system based on radio-over-fiber techniques,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 980–989, Feb. 2006.
[CrossRef]

2005 (1)

N. Horvath, I. Frigyes, “Effects of the nonlinearity of a Mach-Zehnder modulator on OFDM radio-over-fiber transmission,” IEEE Commun. Lett., vol. 9, no. 10, pp. 921–923, Oct. 2005.
[CrossRef]

2004 (1)

A. Batra, J. Balakrishnan, G. R. Aiello, J. R. Foerster, A. Dabak, “Design of a multiband OFDM system for realistic UWB channel environments,” IEEE Trans. Microwave Theory Tech., vol. 52, no. 9, pp. 2123–2138, Sept. 2004.
[CrossRef]

2001 (1)

E. I. Ackerman, C. H. Cox, “RF fiber-optic link performance,” IEEE Microw. Mag., vol. 2, pp. 50–58, Dec. 2001.
[CrossRef]

2000 (1)

J. Wiart, C. Dale, A. V. Bosisio, A. Le Cornec, “Analysis of the influence of the power control and discontinuous transmission on RF exposure with GSM mobile phones,” IEEE Trans. Electromagn. Compat., vol. 42, no. 4, pp. 376–385, Nov. 2000.
[CrossRef]

1992 (1)

J. Zander, “Distributed co-channel control in cellular radio systems interference,” IEEE Trans. Veh. Technol., vol. 41, no. 3, pp. 305–311, Aug. 1992.
[CrossRef]

1973 (1)

J. M. Aein, “Power balancing in systems employing frequency reuse,” COMSAT Tech. Rev., vol. 3, no. 2, pp. 277–99, Fall 1973.

Ackerman, E. I.

E. I. Ackerman, C. H. Cox, “RF fiber-optic link performance,” IEEE Microw. Mag., vol. 2, pp. 50–58, Dec. 2001.
[CrossRef]

Aein, J. M.

J. M. Aein, “Power balancing in systems employing frequency reuse,” COMSAT Tech. Rev., vol. 3, no. 2, pp. 277–99, Fall 1973.

Aiello, G. R.

A. Batra, J. Balakrishnan, G. R. Aiello, J. R. Foerster, A. Dabak, “Design of a multiband OFDM system for realistic UWB channel environments,” IEEE Trans. Microwave Theory Tech., vol. 52, no. 9, pp. 2123–2138, Sept. 2004.
[CrossRef]

Alavi, H.

R. W. Nettleton, H. Alavi, “Power control for spread-spectrum cellular mobile radio system,” in Proc. IEEE Vehicular Technology Conf., VTC-83, 1983, pp. 242–246.

Bai, W.

W. Bai, H. Yang, Z. Bu, “Distributed power control algorithm with the aid of access port,” in Communications, Circuits and Systems. Conf, 2004, vol. 1, p 438–442.

Balakrishnan, J.

A. Batra, J. Balakrishnan, G. R. Aiello, J. R. Foerster, A. Dabak, “Design of a multiband OFDM system for realistic UWB channel environments,” IEEE Trans. Microwave Theory Tech., vol. 52, no. 9, pp. 2123–2138, Sept. 2004.
[CrossRef]

Batra, A.

A. Batra, J. Balakrishnan, G. R. Aiello, J. R. Foerster, A. Dabak, “Design of a multiband OFDM system for realistic UWB channel environments,” IEEE Trans. Microwave Theory Tech., vol. 52, no. 9, pp. 2123–2138, Sept. 2004.
[CrossRef]

Bosisio, A. V.

J. Wiart, C. Dale, A. V. Bosisio, A. Le Cornec, “Analysis of the influence of the power control and discontinuous transmission on RF exposure with GSM mobile phones,” IEEE Trans. Electromagn. Compat., vol. 42, no. 4, pp. 376–385, Nov. 2000.
[CrossRef]

Bu, Z.

W. Bai, H. Yang, Z. Bu, “Distributed power control algorithm with the aid of access port,” in Communications, Circuits and Systems. Conf, 2004, vol. 1, p 438–442.

Chen, H.

Chen, M.

Cox, C. H.

E. I. Ackerman, C. H. Cox, “RF fiber-optic link performance,” IEEE Microw. Mag., vol. 2, pp. 50–58, Dec. 2001.
[CrossRef]

Dabak, A.

A. Batra, J. Balakrishnan, G. R. Aiello, J. R. Foerster, A. Dabak, “Design of a multiband OFDM system for realistic UWB channel environments,” IEEE Trans. Microwave Theory Tech., vol. 52, no. 9, pp. 2123–2138, Sept. 2004.
[CrossRef]

Dale, C.

J. Wiart, C. Dale, A. V. Bosisio, A. Le Cornec, “Analysis of the influence of the power control and discontinuous transmission on RF exposure with GSM mobile phones,” IEEE Trans. Electromagn. Compat., vol. 42, no. 4, pp. 376–385, Nov. 2000.
[CrossRef]

Foerster, J. R.

A. Batra, J. Balakrishnan, G. R. Aiello, J. R. Foerster, A. Dabak, “Design of a multiband OFDM system for realistic UWB channel environments,” IEEE Trans. Microwave Theory Tech., vol. 52, no. 9, pp. 2123–2138, Sept. 2004.
[CrossRef]

Frigyes, I.

N. Horvath, I. Frigyes, “Effects of the nonlinearity of a Mach-Zehnder modulator on OFDM radio-over-fiber transmission,” IEEE Commun. Lett., vol. 9, no. 10, pp. 921–923, Oct. 2005.
[CrossRef]

Fuse, M.

T. Niiho, M. Nakaso, K. Masuda, H. Sasai, K. Utsumi, M. Fuse, “Transmission performance of multichannel wireless LAN system based on radio-over-fiber techniques,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 980–989, Feb. 2006.
[CrossRef]

Hämäläinen, M.

H. Viittala, M. Hämäläinen, J. Iinatti, “Comparative studies of MB-OFDM and DS-UWB with co-existing systems in AWGN channel,” in 17th Annu. IEEE Int. Symp. on Personal, Indoor and Mobile Radio Communications (PIMRC’06), 2006, pp. 1–5.

Heymann, R.

D. Olsen, R. Heymann, “Controlling satellite communication system unwanted emissions in congested RF spectrum,” Proc. SPIE, vol. 6683, pp. 66830B-1–66830B-13, 2007.
[CrossRef]

Horvath, N.

N. Horvath, I. Frigyes, “Effects of the nonlinearity of a Mach-Zehnder modulator on OFDM radio-over-fiber transmission,” IEEE Commun. Lett., vol. 9, no. 10, pp. 921–923, Oct. 2005.
[CrossRef]

Iinatti, J.

H. Viittala, M. Hämäläinen, J. Iinatti, “Comparative studies of MB-OFDM and DS-UWB with co-existing systems in AWGN channel,” in 17th Annu. IEEE Int. Symp. on Personal, Indoor and Mobile Radio Communications (PIMRC’06), 2006, pp. 1–5.

Kurniawan, T.

T. Kurniawan, A. Nirmalathas, C. Lim, D. Novak, R. Waterhouse, “Performance analysis of optimized millimeter-wave fiber radio links,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 921–927, Feb. 2006.
[CrossRef]

Le Cornec, A.

J. Wiart, C. Dale, A. V. Bosisio, A. Le Cornec, “Analysis of the influence of the power control and discontinuous transmission on RF exposure with GSM mobile phones,” IEEE Trans. Electromagn. Compat., vol. 42, no. 4, pp. 376–385, Nov. 2000.
[CrossRef]

Li, M.

Lim, C.

T. Kurniawan, A. Nirmalathas, C. Lim, D. Novak, R. Waterhouse, “Performance analysis of optimized millimeter-wave fiber radio links,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 921–927, Feb. 2006.
[CrossRef]

Lindh, L.

L. Lindh, “Nokia Research Center proposal for the modulation accuracy in IEEE 802.16,” May 2001.

Masuda, K.

T. Niiho, M. Nakaso, K. Masuda, H. Sasai, K. Utsumi, M. Fuse, “Transmission performance of multichannel wireless LAN system based on radio-over-fiber techniques,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 980–989, Feb. 2006.
[CrossRef]

Nakaso, M.

T. Niiho, M. Nakaso, K. Masuda, H. Sasai, K. Utsumi, M. Fuse, “Transmission performance of multichannel wireless LAN system based on radio-over-fiber techniques,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 980–989, Feb. 2006.
[CrossRef]

Nettleton, R. W.

R. W. Nettleton, H. Alavi, “Power control for spread-spectrum cellular mobile radio system,” in Proc. IEEE Vehicular Technology Conf., VTC-83, 1983, pp. 242–246.

Niiho, T.

T. Niiho, M. Nakaso, K. Masuda, H. Sasai, K. Utsumi, M. Fuse, “Transmission performance of multichannel wireless LAN system based on radio-over-fiber techniques,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 980–989, Feb. 2006.
[CrossRef]

Nirmalathas, A.

T. Kurniawan, A. Nirmalathas, C. Lim, D. Novak, R. Waterhouse, “Performance analysis of optimized millimeter-wave fiber radio links,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 921–927, Feb. 2006.
[CrossRef]

Nitin, V.

J. Sun, V. Nitin, “A power control MAC protocol for ad hoc networks,” in Proc. of the Annu. Int. Conf. on Mobile Computing and Networking, MOBICOM, 2002, pp. 36–47.

Novak, D.

T. Kurniawan, A. Nirmalathas, C. Lim, D. Novak, R. Waterhouse, “Performance analysis of optimized millimeter-wave fiber radio links,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 921–927, Feb. 2006.
[CrossRef]

Olsen, D.

D. Olsen, R. Heymann, “Controlling satellite communication system unwanted emissions in congested RF spectrum,” Proc. SPIE, vol. 6683, pp. 66830B-1–66830B-13, 2007.
[CrossRef]

Sasai, H.

T. Niiho, M. Nakaso, K. Masuda, H. Sasai, K. Utsumi, M. Fuse, “Transmission performance of multichannel wireless LAN system based on radio-over-fiber techniques,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 980–989, Feb. 2006.
[CrossRef]

Sun, J.

J. Sun, V. Nitin, “A power control MAC protocol for ad hoc networks,” in Proc. of the Annu. Int. Conf. on Mobile Computing and Networking, MOBICOM, 2002, pp. 36–47.

Utsumi, K.

T. Niiho, M. Nakaso, K. Masuda, H. Sasai, K. Utsumi, M. Fuse, “Transmission performance of multichannel wireless LAN system based on radio-over-fiber techniques,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 980–989, Feb. 2006.
[CrossRef]

Viittala, H.

H. Viittala, M. Hämäläinen, J. Iinatti, “Comparative studies of MB-OFDM and DS-UWB with co-existing systems in AWGN channel,” in 17th Annu. IEEE Int. Symp. on Personal, Indoor and Mobile Radio Communications (PIMRC’06), 2006, pp. 1–5.

Wang, T.

Waterhouse, R.

T. Kurniawan, A. Nirmalathas, C. Lim, D. Novak, R. Waterhouse, “Performance analysis of optimized millimeter-wave fiber radio links,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 921–927, Feb. 2006.
[CrossRef]

Wiart, J.

J. Wiart, C. Dale, A. V. Bosisio, A. Le Cornec, “Analysis of the influence of the power control and discontinuous transmission on RF exposure with GSM mobile phones,” IEEE Trans. Electromagn. Compat., vol. 42, no. 4, pp. 376–385, Nov. 2000.
[CrossRef]

Xie, S.

Xu, Z.

Yang, H.

W. Bai, H. Yang, Z. Bu, “Distributed power control algorithm with the aid of access port,” in Communications, Circuits and Systems. Conf, 2004, vol. 1, p 438–442.

Yu, J.

Z. Xu, J. Yu, X. Zhang, “Electroabsorption modulator frequency down-conversion for uplink radio-over-fiber,” IEEE Photon. Technol. Lett., vol. 20, no. 22, pp. 1875–1877, 2008.
[CrossRef]

Z. Xu, X. Zhang, J. Yu, “Frequency upconversion of multiple RF signals using optical carrier suppression for radio over fiber downlink,” Opt. Express, vol. 15, no. 25, pp. 16737–16747, 2007.
[CrossRef] [PubMed]

Zander, J.

J. Zander, “Distributed co-channel control in cellular radio systems interference,” IEEE Trans. Veh. Technol., vol. 41, no. 3, pp. 305–311, Aug. 1992.
[CrossRef]

Zhang, X.

Z. Xu, J. Yu, X. Zhang, “Electroabsorption modulator frequency down-conversion for uplink radio-over-fiber,” IEEE Photon. Technol. Lett., vol. 20, no. 22, pp. 1875–1877, 2008.
[CrossRef]

Z. Xu, X. Zhang, J. Yu, “Frequency upconversion of multiple RF signals using optical carrier suppression for radio over fiber downlink,” Opt. Express, vol. 15, no. 25, pp. 16737–16747, 2007.
[CrossRef] [PubMed]

Zhou, Y.

COMSAT Tech. Rev. (1)

J. M. Aein, “Power balancing in systems employing frequency reuse,” COMSAT Tech. Rev., vol. 3, no. 2, pp. 277–99, Fall 1973.

IEEE Commun. Lett. (1)

N. Horvath, I. Frigyes, “Effects of the nonlinearity of a Mach-Zehnder modulator on OFDM radio-over-fiber transmission,” IEEE Commun. Lett., vol. 9, no. 10, pp. 921–923, Oct. 2005.
[CrossRef]

IEEE Microw. Mag. (1)

E. I. Ackerman, C. H. Cox, “RF fiber-optic link performance,” IEEE Microw. Mag., vol. 2, pp. 50–58, Dec. 2001.
[CrossRef]

IEEE Photon. Technol. Lett. (1)

Z. Xu, J. Yu, X. Zhang, “Electroabsorption modulator frequency down-conversion for uplink radio-over-fiber,” IEEE Photon. Technol. Lett., vol. 20, no. 22, pp. 1875–1877, 2008.
[CrossRef]

IEEE Trans. Electromagn. Compat. (1)

J. Wiart, C. Dale, A. V. Bosisio, A. Le Cornec, “Analysis of the influence of the power control and discontinuous transmission on RF exposure with GSM mobile phones,” IEEE Trans. Electromagn. Compat., vol. 42, no. 4, pp. 376–385, Nov. 2000.
[CrossRef]

IEEE Trans. Microwave Theory Tech. (3)

A. Batra, J. Balakrishnan, G. R. Aiello, J. R. Foerster, A. Dabak, “Design of a multiband OFDM system for realistic UWB channel environments,” IEEE Trans. Microwave Theory Tech., vol. 52, no. 9, pp. 2123–2138, Sept. 2004.
[CrossRef]

T. Kurniawan, A. Nirmalathas, C. Lim, D. Novak, R. Waterhouse, “Performance analysis of optimized millimeter-wave fiber radio links,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 921–927, Feb. 2006.
[CrossRef]

T. Niiho, M. Nakaso, K. Masuda, H. Sasai, K. Utsumi, M. Fuse, “Transmission performance of multichannel wireless LAN system based on radio-over-fiber techniques,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 2, pp. 980–989, Feb. 2006.
[CrossRef]

IEEE Trans. Veh. Technol. (1)

J. Zander, “Distributed co-channel control in cellular radio systems interference,” IEEE Trans. Veh. Technol., vol. 41, no. 3, pp. 305–311, Aug. 1992.
[CrossRef]

J. Opt. Commun. Netw. (1)

Opt. Express (2)

Proc. SPIE (1)

D. Olsen, R. Heymann, “Controlling satellite communication system unwanted emissions in congested RF spectrum,” Proc. SPIE, vol. 6683, pp. 66830B-1–66830B-13, 2007.
[CrossRef]

Other (7)

Federal Communications Commission, “First report and order, revision of part 15 of the commission’s rules regarding ultra-wideband transmission systems,” ET Docket 98–153, Feb. 2002.

J. Sun, V. Nitin, “A power control MAC protocol for ad hoc networks,” in Proc. of the Annu. Int. Conf. on Mobile Computing and Networking, MOBICOM, 2002, pp. 36–47.

R. W. Nettleton, H. Alavi, “Power control for spread-spectrum cellular mobile radio system,” in Proc. IEEE Vehicular Technology Conf., VTC-83, 1983, pp. 242–246.

W. Bai, H. Yang, Z. Bu, “Distributed power control algorithm with the aid of access port,” in Communications, Circuits and Systems. Conf, 2004, vol. 1, p 438–442.

H. Viittala, M. Hämäläinen, J. Iinatti, “Comparative studies of MB-OFDM and DS-UWB with co-existing systems in AWGN channel,” in 17th Annu. IEEE Int. Symp. on Personal, Indoor and Mobile Radio Communications (PIMRC’06), 2006, pp. 1–5.

ECMA-368, “High rate ultra wideband PHY and MAC standard,” Dec. 2005.

L. Lindh, “Nokia Research Center proposal for the modulation accuracy in IEEE 802.16,” May 2001.

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Figures (9)

Fig. 1
Fig. 1

RoF system with power control for downlink distribution.

Fig. 2
Fig. 2

Diagram of a cell.

Fig. 3
Fig. 3

DUR change of four channels versus input power change of channel 1.

Fig. 4
Fig. 4

DUR and third-order nonlinear product versus input power.

Fig. 5
Fig. 5

Block diagram of the power control processing.

Fig. 6
Fig. 6

Calculated DUR versus steps using the power control algorithm for (a) four channels and (b) nine channels.

Fig. 7
Fig. 7

Simulation setup.

Fig. 8
Fig. 8

Constellations of the received signal for the case of without using power control (a) ch. #1, (b) ch. #2, (c) ch. #3, and (d) ch. #4 and using power control (e) ch. #1, (f) ch. #2, (d) ch. #3, and (h) ch. #4.

Fig. 9
Fig. 9

Electrical spectrum of the four-channel signals for the case of (a) without power control and (b) with power control.

Tables (1)

Tables Icon

Table 1 Parameters for the Considered System

Equations (13)

Equations on this page are rendered with MathJax. Learn more.

DUR = Signal Noise + NonlinearDistortion ,
P in = ( p 1 in , p 2 in , , p n in ) ,
P non = ( p 1 non , p 2 non , , p n non ) .
DUR i = g RoF g i RF p i in g i RF p i non + p N RoF g i RF + p N RF .
S i ( v ) = K 3 2 2 ( a i 2 ) 3 2 2 3 π 2 m = 0 3 ( 1 ) m C 3 m ( ( v + ( 3 2 m ) ) 2 × u ( v + ( 3 2 m ) ) ) ,
p i non - in = 1 1 S i ( v ) d v R s = 32 3 K 3 2 2 ( a i 2 ) 3 2 2 3 π 2 R s .
p i non - adj = 1 R s ( 1 3 S i 1 ( v ) d v + 3 1 S i + 1 ( v ) d v ) = 8 3 K 3 2 2 2 2 3 π 2 ( ( a i 1 ) 6 + ( a i + 1 ) 6 ) R s .
p i non - IMD = k , l , m ± k ± j ± m = i ( 1 4 K 3 a k a l a m ) 2 R s .
p i non = p i non - IMD + p i non - in + p i non - adj ,
P RF no- PC α RF ( f ) ρ π R 2 = ρ π R 2 H ( f ) R 2 = ρ H ( f ) π R 4 ,
P RF PC 0 R H ( f ) r 2 ρ 2 π r d r = 1 2 ρ H ( f ) π R 4 ,
DUR i = DUR desired ,
p i in ( k ) = DUR desired ( g RoF g i RF p i non ( k ) + p N RoF g i RF + p N RF ) g i RF g RoF ,