Diversity analysis of time-indexed media-based modulation

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
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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