Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/7659
Título: | Coding of PPM based modulation techniques to improve the performance of infrared WLAN's |
Autor: | Alves, Rui Gameiro, Atilio |
Data: | 2000 |
Editora: | IEEE |
Resumo: | 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. The bandwidth eficiency expressions of these modulation schemes are presented and compared against the one of Pulse-Position Modulation (PPM), which allows to conclude that both APPM and OPPM can be used to improve the performance of PPM without significant bandwidth expansion, using Trellis-Coded Modulation (TCM) codes. We also 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. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/7659 |
DOI: | 10.1109/VETECF.2000.886317 |
ISSN: | 0098-3551 |
Versão do Editor: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0034503608&partnerID=40&md5=f9b0952ebfe9da993049a56b9eb54ad5 |
Aparece nas coleções: | DETI - Comunicações |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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coding of ppm based modulation.pdf | 570.81 kB | Adobe PDF | Ver/Abrir |
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