MC-CDMA Scheme in Wi-Fi Environment

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Executive Summary

The combination of OFDM and Code Division Multiple Access (CDMA) is seen as an attractive and practical solution to enhance the throughput and/or robustness for future high-speed indoor WLANs. The multi-path Rayleigh channel represents a hostile environment for WLANs communication. So, the authors have proposed the MC-CDMA system to overcome the impact of this kind of wireless channel. The focus of this paper is to simulate a modified PHYsical layer (PHY) based on the IEEE 802.11a combined with a stage of spread spectrum. This modified layer particularly concentrates on IEEE 802.11a standard. Basically, the proposed schemes can be split in different types depending on the CDMA code used.

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