Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/8296
Title: | Coded PPM based modulations for infrared WLAN'S |
Author: | Alves, R. Gameiro, A. |
Keywords: | Infrared PPM TCM coding Rate adaptation |
Issue Date: | 2006 |
Publisher: | ACTA Press |
Abstract: | In this communication we consider the use of PPM based modulation methods, such as the hybrid modulation method called Amplitude and Pulse-Position Modulation (APPM) and Overlapping Pulse-Position Modulation (OPPM) to improve the performance of infrared WLAN’s, by the use of Trellis-Coded Modulation (TCM) codes. We derive the best codes for some APPM and OPPM schemes, and the results show that non-negligible coding gains without bandwidth expansion can be obtained with trellis codes of moderate complexity. The theoretical coding gains are confirmed by simulation. Finally a set of multirate systems using the derived TCM coding are evaluated, and their practical benefits observed in terms of connectivity improvements. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/8296 |
ISBN: | 0-88986-545-0 0-88986-547-7 (CD) |
ISSN: | 1482-7905 1922-8082 (CD) |
Publisher Version: | http://www.scopus.com/inward/record.url?eid=2-s2.0-33847212522&partnerID=40&md5=df9fe6a8a997ad41e8945ac52a592e82 http://www.actapress.com |
Appears in Collections: | DETI - Comunicações |
Files in This Item:
File | Description | Size | Format | |
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ACSTD2006.pdf | 1.12 MB | Adobe PDF |
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