Performance analysis of OFDM communication systems
Summary :
Table of Contents
- Abstract
- Introduction
- Block diagram of overall system
- Comparison with CDMA
- Stimulation results
- Definition of multi-antena OFDM systems
- Results and conclusion
- References
Abstract
Today life does not seem possible without wireless
in some form or the other. The demands on bandwidth and spectral availability are endless. Consequently, wireless designers face an uphill task of limited availability of radio frequency spectrum and complex time varying problems in the wireless channel, such as fading and multipath, as well as meeting the demand for high data rates. Simultaneously, there is an urgent need for better quality of service (QoS). Orthogonal Frequency Division Multiple Access (OFDMA) is a promising technique for broadband wireless communication because it can combat inter-symbol interference (ISI) caused by the dispersive fading of wireless channels. OFDMA is a multi-user
version of the popular ofdm digital modulation scheme. This paper is one of the footsteps towards technical contribution in the world of wireless communication. ofdm's subcarriers make it very conducive to other technologies, such as multiple input-multiple-output(MIMO) antenna implementations, as well as multiple access (OFDMA) implementations.
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