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Frequency-Domain Pre-Rake Transmission for DSSS/TDD Mobile Communications Systems
Fumiyuki ADACHI Kazuaki TAKEDA Hiromichi TOMEBA
Publication
IEICE TRANSACTIONS on Communications
Vol.E88-B
No.2
pp.784-787 Publication Date: 2005/02/01 Online ISSN:
DOI: 10.1093/ietcom/e88-b.2.784 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: frequency-domain equalization, pre-rake, spread spectrum, mobile radio,
Full Text: PDF(443KB)>>
Summary:
In this Letter, a frequency-domain pre-rake transmission is presented for a direct sequence spread spectrum with time division duplex (DSSS/TDD) system under a frequency-selective fading channel. The mathematical relationship between frequency-domain and time-domain pre-rake transmissions is discussed. It is confirmed by the computer simulation that, similar to the time-domain pre-rake transmission, frequency-domain pre-rake transmission can improve the bit error rate (BER) performance. The frequency-domain pre-rake transmission shows only slight performance degradation compared to the frequency-domain rake reception for large SF.
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