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A generalization of multiple-mode OFDM with index modulation

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Wen, Miaowen
Li, Qiang
Zhang, Wensong

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In this paper, we propose the scheme of generalized multiple-mode orthogonal frequency division multiplexing with index modulation (GMM-OFDM-IM), which allows a different subcarrier to utilize a signal constellation of a different size while conveying the same number of IM hits. Considering phase shift keying (PSK) constellations, we present design guidelines for GMM-OFDM-IM to achieve the optimal error performance in the asymptotically high signal-to-noise ratio region. A computationally efficient and near-optimal detector based on the idea of sequential decoding is also tailored to GMM-OFDM-IM to avoid the detection of an illegimate constellation permutation. Monte Carlo simulations are conducted to examine GNIM-OFDM-IM, whose inherent properties and advantages are revealed by the simulation results.

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Institute of Electrical and Electronics Engineers (IEEE)

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Engineering, electrical and electronic

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2018 IEEE 23rd International Conference on Digital Signal Processing (Dsp)

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