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Performance of multicarrier DS-CDMA in wireless LAN application

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6 Author(s)
Tae-Yoon Fade ; Dept. of Electr. & Inf. Eng., Chonbuk Nat. Univ., Chonju, South Korea ; Ung Heo ; In-Bin Im ; Jung-Ho Fade
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From various multicarrier transmission systems adopted for indoor or outdoor wireless local area networks, the multicarrier direct sequence code-division multiple-access (MC DS-CDMA) scheme is newly defined and its performance is considered. The system performance investigation is particularly focused on the cases where the system's cyclic overhead could tolerate the channel delay profile. In order to obtain a comprehensive insight on its performance in WLAN environment we have derived analytical framework for determining the average bit-error rate. From the analytical derivation, the average BER of our MC/DS-CDMA is independent of interferences caused by multipath, multiuser, and multichannel. Hence, in the view point of designing an alternative transmission system for a local wireless communication network, our proposed scheme could provide a flexible scalability with respect to transmission rate, user, and bandwidth along with communication security. The performance analysis results verify the superb capability of the proposed MC/DC-CDMA scheme when applied to a local wireless communication rather than mobile communication.

Published in:

Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on  (Volume:2 )

Date of Conference:

31 May-2 June 2004