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

Author

Lee, David C M ; Kahn, Joseph M. ; Audeh, Malik D.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA

Volume

2

fYear

1996

fDate

15-18 Oct 1996

Firstpage

349

Abstract

We analyze the performance of trellis-coded pulse-position modulation (PPM) on indoor, wireless infrared channels. We show that maximum-likelihood sequence detection (MLSD) of trellis-coded PPM is very effective in mitigating the multipath dispersion on such channels. We present code search results for high constraint-length, rate-2/3, 8-PPM and rate-3/4, 16-PPM codes. We provide bit-error-rate curves and intersymbol interference power penalties for MLSD of PPM with these codes, evaluated on ceiling-bounce channel models with delay spread per bit duration ratios of 0.02 to 0.3. Finally, we present Monte Carlo simulation results to verify our analysis

Keywords

Monte Carlo methods; delays; estimation theory; intersymbol interference; maximum likelihood detection; multipath channels; optical communication; optical signal detection; pulse position modulation; trellis coded modulation; 8-PPM; MLSD; Monte Carlo simulation results; PPM; bit error rate curves; ceiling bounce channel models; code search results; delay spread per bit duration ratios; high constraint-length codes; indoor wireless infrared communications; intersymbol interference power penalties; maximum-likelihood sequence detection; multipath dispersion; rate-2/3 code; rate-3/4 code; trellis coded pulse position modulation; wireless infrared channels; Bandwidth; Intersymbol interference; Maximum likelihood detection; Optical fiber communication; Optical noise; Optical receivers; Optical transmitters; Pulse modulation; Signal to noise ratio; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1996. PIMRC'96., Seventh IEEE International Symposium on

Conference_Location

Taipei

Print_ISBN

0-7803-3692-5

Type

conf

DOI

10.1109/PIMRC.1996.567414

Filename

567414