Gaussian chip waveform together with markovian spreading codes improve BER performance in chip-asynchronous CDMA systems

Yutaka Jitsumatsu, M. Tahir Abbas Khan, Tohru Kohda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Performance of chip-asynchronous DS/CDMA system depends on chip waveform as well as spread spectrum (SS) codes. In case of rectangular chip waveform, SS codes generated by a Markov chain were shown to improve bit error rate (BER) performance. However, in commercial CDMA systems, a band-limited root raised cosine (RRC) pulse is used, where the superiority of Markov codes is reduced. RRC pulse fulfills inter-chip interference (ICI)-free condition. In CDMA systems, multiple-access interference (MAI) is of crucial importance. Gaussian pulse used in conjunction with Markovian codes reduces MAI although it does not has the ICI-free property. Computer simulations show that Gaussian pulse with same excess bandwidth energy as the RRC pulse significantly reduces BER.

Original languageEnglish
Title of host publicationIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
DOIs
Publication statusPublished - Dec 1 2006
EventIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference - San Francisco, CA, United States
Duration: Nov 27 2006Dec 1 2006

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

OtherIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
CountryUnited States
CitySan Francisco, CA
Period11/27/0612/1/06

Fingerprint

Bit error rate
Code division multiple access
Multiple access interference
Markov processes
Bandwidth
Computer simulation
System-on-chip

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Jitsumatsu, Y., Tahir Abbas Khan, M., & Kohda, T. (2006). Gaussian chip waveform together with markovian spreading codes improve BER performance in chip-asynchronous CDMA systems. In IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference [4150731] (GLOBECOM - IEEE Global Telecommunications Conference). https://doi.org/10.1109/GLOCOM.2006.101

Gaussian chip waveform together with markovian spreading codes improve BER performance in chip-asynchronous CDMA systems. / Jitsumatsu, Yutaka; Tahir Abbas Khan, M.; Kohda, Tohru.

IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference. 2006. 4150731 (GLOBECOM - IEEE Global Telecommunications Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jitsumatsu, Y, Tahir Abbas Khan, M & Kohda, T 2006, Gaussian chip waveform together with markovian spreading codes improve BER performance in chip-asynchronous CDMA systems. in IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference., 4150731, GLOBECOM - IEEE Global Telecommunications Conference, IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference, San Francisco, CA, United States, 11/27/06. https://doi.org/10.1109/GLOCOM.2006.101
Jitsumatsu Y, Tahir Abbas Khan M, Kohda T. Gaussian chip waveform together with markovian spreading codes improve BER performance in chip-asynchronous CDMA systems. In IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference. 2006. 4150731. (GLOBECOM - IEEE Global Telecommunications Conference). https://doi.org/10.1109/GLOCOM.2006.101
Jitsumatsu, Yutaka ; Tahir Abbas Khan, M. ; Kohda, Tohru. / Gaussian chip waveform together with markovian spreading codes improve BER performance in chip-asynchronous CDMA systems. IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference. 2006. (GLOBECOM - IEEE Global Telecommunications Conference).
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