Abstract

We study the effects of artificial (fluorescent) light interference on a dual-header pulse interval modulation (DH-PIM) modulation scheme for an indoor optical wireless environment. Artificial-light-induced interference can be reduced using high-pass filtering (HPF), but it results in a new interference known as the baseline wander. We examine the effects of changing the HPF cut-on frequency in the absence and presence of multipath propagation. The results show that depending on the value of the HPF cut-on frequency, the severity of baseline wander will vary; thus there is a trade-off between the extent of artificial-light-interference rejection and the severity of baseline wander. We show that for DH-PIM, the power requirements are almost constant for HPF with cut-on frequency less than 1% of the bit rate and increase exponentially beyond this value.

© 2005 Optical Society of America

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  1. R. J. Dickenson and Z. Ghassemlooy, "Wavelet-AI equalisation and detection for indoor diffuse infrared wireless system," Int. J. Commun. Syst. 18, 247-266 (2005).
  2. J. M. Kahn and J. R. Barry, "Wireless infrared communications," Proc. IEEE 85, 265-298 (1997).
  3. R. Otte, L. P. De Jong, and A. H. M. Van Roermund, Low-Power Wireless Infrared Communications (Kluwer, 1999).
  4. R. Narasimhan, M.D. Audeh, and J.M Kahn: "Effect of electronic-ballast fluorescent lighting on wireless infrared links," IEE Proc. Optoelectron. 143, 347-354 (1996)
  5. A. J. C. Moreira, R. T. Valadas, and A.M. De Oliveira Duarte:, "Performance of infrared transmission systems under ambient light interference," IEE Proc. Optoelectron. 143, 339-346 (1996).
  6. A. M. Street, K. Samaras, D. C. O'Brien, and D.J. Edwards, "Closed form expressions for baseline wander effects in wireless IR applications," Electron. Lett. 33, 1060-1062 (1997).
  7. N. M. Aldibbiat, "Optical wireless communication systems employing dual header pulse interval modulation (DH-PIM)," Ph.D .thesis (Sheffield Hallam University, UK, Dec. 2001).
  8. N. M. Aldibbiat, Z. Ghassemlooy and R. McLaughlin, "Indoor optical wireless systems employing dual header pulse interval modulation (DH-PIM)," Int. J. Commun. Syst. 18, 285-306 (2005).
  9. A. R. Hayes, Z. Ghassemlooy and N.L. Seed, "Digital pulse interval modulation for optical communications," IEEE Commun. Mag. 36(12), 95-99 (1998).

2005 (2)

R. J. Dickenson and Z. Ghassemlooy, "Wavelet-AI equalisation and detection for indoor diffuse infrared wireless system," Int. J. Commun. Syst. 18, 247-266 (2005).

N. M. Aldibbiat, Z. Ghassemlooy and R. McLaughlin, "Indoor optical wireless systems employing dual header pulse interval modulation (DH-PIM)," Int. J. Commun. Syst. 18, 285-306 (2005).

1998 (1)

A. R. Hayes, Z. Ghassemlooy and N.L. Seed, "Digital pulse interval modulation for optical communications," IEEE Commun. Mag. 36(12), 95-99 (1998).

1997 (1)

A. M. Street, K. Samaras, D. C. O'Brien, and D.J. Edwards, "Closed form expressions for baseline wander effects in wireless IR applications," Electron. Lett. 33, 1060-1062 (1997).

1996 (1)

A. J. C. Moreira, R. T. Valadas, and A.M. De Oliveira Duarte:, "Performance of infrared transmission systems under ambient light interference," IEE Proc. Optoelectron. 143, 339-346 (1996).

Int. J. Commun. Syst. (1)

N. M. Aldibbiat, Z. Ghassemlooy and R. McLaughlin, "Indoor optical wireless systems employing dual header pulse interval modulation (DH-PIM)," Int. J. Commun. Syst. 18, 285-306 (2005).

Electron. Lett. (1)

A. M. Street, K. Samaras, D. C. O'Brien, and D.J. Edwards, "Closed form expressions for baseline wander effects in wireless IR applications," Electron. Lett. 33, 1060-1062 (1997).

IEE Proc. Optoelectron. (1)

A. J. C. Moreira, R. T. Valadas, and A.M. De Oliveira Duarte:, "Performance of infrared transmission systems under ambient light interference," IEE Proc. Optoelectron. 143, 339-346 (1996).

IEEE Commun. Mag. (1)

A. R. Hayes, Z. Ghassemlooy and N.L. Seed, "Digital pulse interval modulation for optical communications," IEEE Commun. Mag. 36(12), 95-99 (1998).

Int. J. Commun. Syst. (1)

R. J. Dickenson and Z. Ghassemlooy, "Wavelet-AI equalisation and detection for indoor diffuse infrared wireless system," Int. J. Commun. Syst. 18, 247-266 (2005).

Proc. IEEE (1)

J. M. Kahn and J. R. Barry, "Wireless infrared communications," Proc. IEEE 85, 265-298 (1997).

Other (3)

R. Otte, L. P. De Jong, and A. H. M. Van Roermund, Low-Power Wireless Infrared Communications (Kluwer, 1999).

R. Narasimhan, M.D. Audeh, and J.M Kahn: "Effect of electronic-ballast fluorescent lighting on wireless infrared links," IEE Proc. Optoelectron. 143, 347-354 (1996)

N. M. Aldibbiat, "Optical wireless communication systems employing dual header pulse interval modulation (DH-PIM)," Ph.D .thesis (Sheffield Hallam University, UK, Dec. 2001).

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