From source coding to MIMO : a Multi-Level Unequal Error Protection

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Authors
Barmada, Bashar
Rehman, Saeed
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Date
2016-11
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Conference Contribution - Paper in Published Proceedings
Ngā Upoko Tukutuku (Māori subject headings)
Keyword
unequal error protection
multi-layer source coding
turbo coding
MIMO with spatial-time code
ANZSRC Field of Research Code (2020)
Citation
Barmada, B., & Rehman, S.U. (2016, 22-25 Nov). From Source Coding to MIMO - A Multi-Level Unequal Error Protection. IEEE (Ed.), IEEE TENCON 2016 (pp.1-5).
Abstract
In this paper, unequal error protection (UEP) on different levels of the transmission system is proposed. Starting from the source coding level, two priority layers are produced, high priority (HP) and low priority (LP). At channel coding, each priority layer is turbo encoded with a coding rate that reflects its importance. For modulation, a more immune modulation mode is used to modulate the HP bit stream. Finally at the transmission level, a 3 × 3 MIMO is used, where more transmit antennas and time slots are offered to HP data. This arrangement of inequality over several levels increases the flexibility of the UEP system and leads to a better performance. Results show that the proposed system outperforms other semi-unequal and equal error protection systems over a wide range of channel signal-to-noise ratio (SNR), especially at low SNR values.
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Institute of Electrical and Electronics Engineers (IEEE)
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