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Compressed sensing-aided index modulation improves space-time shift keying assisted millimeter-wave communications

Compressed sensing-aided index modulation improves space-time shift keying assisted millimeter-wave communications
Compressed sensing-aided index modulation improves space-time shift keying assisted millimeter-wave communications
In this treatise, we present the concept of Compressed-Sensing (CS)-aided Space-Time Shift Keying Index Modulation (STSK-IM), where a virtual domain Orthogonal Frequency Division Multiplexing (OFDM) symbol is divided into Na-sized blocks, which carry K STSK codewords over a specific combination of virtual-domain subcarriers and then converted to the frequency domain with the aid of a CS matrix. We design the system for operation in the Milli-meter Wave (mmWave) frequency band. Furthermore, we amalgamate our soft-decision-aided scheme both with the concept of Coordinate-Interleaving (CI) as well as a Discrete Fourier Transform (DFT)-aided codebook design conceived for analogue beamforming, which is vitally important for mmWave systems. In the proposed system, the number of implicit bits conveyed by the activated sub-carrier Frequency Index (FI) is determined by the number of the available K to Na subcarrier permutations. Hence, we propose two FI allocation techniques, namely the Distinct FI (DFI) and the Shared FI (SFI) based schemes, which strike a trade-off between the attainable sparsity level and the achievable capacity limit. We also formulate the Discrete-Input Continuous-Output Memoryless Channel (DCMC) capacity and invoke EXtrinsic Information Transfer (EXIT) charts for characterizing the achievable performance limit of the reduced-complexity aided detector. Finally, we analyze the BER performance of both the uncoded and of our coded CS-aided STSKIM systems associated with both the optimum and the
reduced-complexity detectors.
2169-3536
64742-64756
Hemadeh, Ibrahim
6576ce7e-fe4c-4f4d-b5db-84935f38cd9c
Lu, Siyao
464cf7cc-b469-450a-93c2-489a31d1289c
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Hemadeh, Ibrahim
6576ce7e-fe4c-4f4d-b5db-84935f38cd9c
Lu, Siyao
464cf7cc-b469-450a-93c2-489a31d1289c
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Hemadeh, Ibrahim, Lu, Siyao, El-Hajjar, Mohammed and Hanzo, Lajos (2018) Compressed sensing-aided index modulation improves space-time shift keying assisted millimeter-wave communications. IEEE Access, 6, 64742-64756. (doi:10.1109/ACCESS.2018.2876307).

Record type: Article

Abstract

In this treatise, we present the concept of Compressed-Sensing (CS)-aided Space-Time Shift Keying Index Modulation (STSK-IM), where a virtual domain Orthogonal Frequency Division Multiplexing (OFDM) symbol is divided into Na-sized blocks, which carry K STSK codewords over a specific combination of virtual-domain subcarriers and then converted to the frequency domain with the aid of a CS matrix. We design the system for operation in the Milli-meter Wave (mmWave) frequency band. Furthermore, we amalgamate our soft-decision-aided scheme both with the concept of Coordinate-Interleaving (CI) as well as a Discrete Fourier Transform (DFT)-aided codebook design conceived for analogue beamforming, which is vitally important for mmWave systems. In the proposed system, the number of implicit bits conveyed by the activated sub-carrier Frequency Index (FI) is determined by the number of the available K to Na subcarrier permutations. Hence, we propose two FI allocation techniques, namely the Distinct FI (DFI) and the Shared FI (SFI) based schemes, which strike a trade-off between the attainable sparsity level and the achievable capacity limit. We also formulate the Discrete-Input Continuous-Output Memoryless Channel (DCMC) capacity and invoke EXtrinsic Information Transfer (EXIT) charts for characterizing the achievable performance limit of the reduced-complexity aided detector. Finally, we analyze the BER performance of both the uncoded and of our coded CS-aided STSKIM systems associated with both the optimum and the
reduced-complexity detectors.

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Accepted/In Press date: 6 October 2018
e-pub ahead of print date: 16 October 2018

Identifiers

Local EPrints ID: 425443
URI: https://eprints.soton.ac.uk/id/eprint/425443
ISSN: 2169-3536
PURE UUID: 5f0fa71e-4a9c-4514-80de-48eea4c3d3ca
ORCID for Siyao Lu: ORCID iD orcid.org/0000-0002-5239-3964
ORCID for Mohammed El-Hajjar: ORCID iD orcid.org/0000-0002-7987-1401
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 19 Oct 2018 16:30
Last modified: 20 Jul 2019 01:26

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