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Content Provider | IEEE Xplore Digital Library |
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Author | Yanyan Zhang Yang Zhao Liang Ge Xiaofeng Tao |
Copyright Year | 2008 |
Description | Author affiliation: Wireless Technol. Innovation Inst., Beijing Univ. of Posts & Telecommun., Beijing (Yanyan Zhang) |
Abstract | Although pseudo-orthogonal carrier interferometry (PO-CI) multi-carrier code division multiple access (MC-CDMA) could transmit doubled data streams, it highly depends on the modulation type. Through theoretical inter-code interference analysis, this paper puts forward that PO-CI/MC-CDMA systems could be de-spread ideally only with BPSK modulation. When complex modulation types are considered, PO-CI/MC-CDMA fails in de-spreading while simulation results of QPSK and QAM demonstrate this limitation. However, pulse amplitude modulations (PAMs) are found to be more suitable for the systems. The acceptable bit error rate (BER) performance of high rank PAMs is revealed by simulation too. Therefore, if the spectrum efficiency requisition is high, PAM is proposed to be the optimal modulation type for PO-CI/MC-CDMA systems. |
Starting Page | 1 |
Ending Page | 5 |
File Size | 182557 |
Page Count | 5 |
File Format | |
ISBN | 9781424417216 |
ISSN | 10903038 |
DOI | 10.1109/VETECF.2008.213 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2008-09-21 |
Publisher Place | Canada |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Multicarrier code division multiple access Fault currents Computed tomography Current transformers Circuit faults Interference AWGN |
Content Type | Text |
Resource Type | Article |
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