Trellis-coded multiple-pulse-position modulation for wireless infrared communications

We present new trellis codes based on multiple-pulse-position modulation (MPPM) for wireless infrared communication. We assume that the receiver uses maximum-likelihood sequence detection to mitigate the effects of channel dispersion, which we model using a first-order lowpass filter. Compared to trellis codes based on PPM, the new codes are less sensitive to multipath dispersion and offer better power efficiency when the desired bit rate is large, compared with the channel bandwidth. For example, when the bit rate equals the bandwidth, trellis-coded (17 2)-MPPM requires 1.4 dB less optical power than trellis-coded 16-PPM having the same constraint length.

[1]  John R. Barry,et al.  Modulation analysis for wireless infrared communications , 1995, Proceedings IEEE International Conference on Communications ICC '95.

[2]  Gottfried Ungerboeck,et al.  Channel coding with multilevel/phase signals , 1982, IEEE Trans. Inf. Theory.

[3]  Jeffrey B. Carruthers,et al.  Wireless infrared communications , 2003, Proc. IEEE.

[4]  Daniel J. Costello,et al.  Probabilistic construction of large constraint length trellis codes for sequential decoding , 1995, IEEE Transactions on Communications.

[5]  Joseph M. Kahn,et al.  Modeling of nondirected wireless infrared channels , 1997, IEEE Trans. Commun..

[6]  Evangelos Eleftheriou,et al.  Decoding of trellis-encoded signals in the presence of intersymbol interference and noise , 1989, IEEE Trans. Commun..

[7]  Hyuncheol Park,et al.  Coded modulation and equalization for wireless infrared communications , 1997 .

[8]  John R. Barry,et al.  Performance of multiple pulse position modulation on multipath channels , 1996 .

[9]  Gregory J. Pottie,et al.  Further asymptotic upper bounds on the minimum distance of trellis codes , 1993, IEEE Trans. Inf. Theory.

[10]  Thomas M. Cover,et al.  Elements of Information Theory , 2005 .

[11]  Hyuncheol Park,et al.  Trellis-coded multiple-pulse position modulation for wireless infrared communications , 1998, IEEE GLOBECOM 1998 (Cat. NO. 98CH36250).

[12]  Jack K. Wolf,et al.  On the performance evaluation of trellis codes , 1987, IEEE Trans. Inf. Theory.

[13]  J. W. Modestino,et al.  Pulsewidth-constrained signaling and trellis coded modulation on the direct-detection optical channel , 1988, IEEE Global Telecommunications Conference and Exhibition. Communications for the Information Age.

[14]  Costas N. Georghiades.  Modulation and coding for throughput-efficient optical systems , 1994, IEEE Trans. Inf. Theory.

[15]  Joseph M. Kahn,et al.  Wireless Infrared Communications , 1994 .

[16]  John R. Barry.  Sequence detection and equalization for pulse-position modulation , 1994, Proceedings of ICC/SUPERCOMM'94 - 1994 International Conference on Communications.

[17]  Joseph M. Kahn,et al.  Performance of pulse-position modulation with trellis-coded modulation on non-directed indoor infrared channels , 1995, Proceedings of GLOBECOM '95.