The Performance Analysis of OFDM-IDMA in Wireless Communication by Using an Iterative Sub-Optimal Receiver Structure

Provided by: International Journal Of Engineering And Computer Science
Topic: Mobility
Format: PDF
Multiple access schemes are used to allow many mobile users to share simultaneously a finite amount of radio spectrum. The sharing of spectrum is required to achieve high capacity by simultaneously allocating the available bandwidth to multiple users. This paper provides a comprehensive study of OFDM-IDMA. Comparisons with other alternative technology such as OFDMCDMA are provided. Cyclic Prefix reduces the ISI in the OFDM Block and MAI is reduced by IDMA in the AWGN channel. A Signal-to-Noise Ratio (SNR) evolution technique is developed to predict the Bit-Error-Rate (BER) performance of OFDM-IDMA by using BPSK modulation. Also, the authors provide simulation results in the matlab environment.

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