Gupta, R and Shamasundar, B and Chockalingam, A (2019) Diversity analysis of time-indexed media-based modulation. In: 90th IEEE Vehicular Technology Conference, VTC 2019, 22 - 25 September 2019, Honolulu.
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Abstract
Time-indexed media-based modulation (TI-MBM) is a block transmission scheme, where a block of 𝒩 time-slots forms a frame of which only K time-slots are used for data transmission (active slots) and the remaining N-K time-slots are left vacant (inactive slots). The choice of the active time-slots conveys additional information bits along with the bits conveyed by the MBM signals transmitted in the active time-slots. It has been shown that TI-MBM can achieve improved bit error performance compared to the conventional MBM scheme. However, a mathematical diversity analysis of TI-MBM has not been reported in the literature so far. In this paper, we view the time-slot indexing as coding across time (since the choice of active and inactive time-slots are dependent on each other) and carry out a mathematical analysis of the diversity performance of TI-MBM. Our analytical results show that, while conventional MBM can not extract the multipath diversity of the channel, TI-MBM can achieve higher diversity orders by extracting the channel multipath diversity for suitable choice of system parameters. We provide simulation results that support the analytically predicted diversity orders. © 2019 IEEE.
Item Type: | Conference Paper |
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Publication: | IEEE Vehicular Technology Conference |
Publisher: | Institute of Electrical and Electronics Engineers Inc. |
Additional Information: | The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc. |
Keywords: | Modulation, Analytical results; Block transmissions; Diversity analysis; Diversity order; Diversity performance; Information bit; Mathematical analysis; Multipath diversity, Transmissions |
Department/Centre: | Division of Electrical Sciences > Electrical Communication Engineering |
Date Deposited: | 06 Jan 2023 09:51 |
Last Modified: | 06 Jan 2023 09:51 |
URI: | https://eprints.iisc.ac.in/id/eprint/78838 |
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