Presentation 2009-10-22
Performance Evaluation of Fractional Sampling OFCDM System with Alternative Spreading Code in Multiuser Environment
Mamiko INAMORI, Haruki NISHIMURA, Yukitoshi SANADA,
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Abstract(in English) The Orthogonal Frequency and Code Division Multiplexing (OFCDM) has received large attention as a modulation scheme to realize high data rate transmission. In this paper, the OFCDM system with Fraction Sampling (FS) is investigated. FS is a diversity scheme with a single antenna, which achieves path diversity through oversampling and parallel signal reception. However, the correlation among noise components may deteriorate the bit error rate (BER) performance at the receiver as the number of subcarriers and oversampling ratio increases. To overcome this problem, the alternative spreading code (ASC) is used for the FS OFCDM system in multiuser environment. However, the ASC reduces the number of available spreading codes. The relationship between the block size of ASC and the performance of FS OFCDM system is evaluated through computer simulation.
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Keyword(in English) OFCDM / Fractional Sampling / Diversity
Paper # SR2009-56
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Conference Date 2009/10/15(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Performance Evaluation of Fractional Sampling OFCDM System with Alternative Spreading Code in Multiuser Environment
Sub Title (in English)
Keyword(1) OFCDM
Keyword(2) Fractional Sampling
Keyword(3) Diversity
1st Author's Name Mamiko INAMORI
1st Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University()
2nd Author's Name Haruki NISHIMURA
2nd Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University
3rd Author's Name Yukitoshi SANADA
3rd Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University
Date 2009-10-22
Paper # SR2009-56
Volume (vol) vol.109
Number (no) 246
Page pp.pp.-
#Pages 6
Date of Issue