Star-QAM signaling constellations for spatial modulation
Star-QAM signaling constellations for spatial modulation
The performance of spatial modulation (SM) assisted multiple-input multiple-output (MIMO) communication systems is highly dependent on the specific amplitude/phase modulation (APM) signal constellation adopted. In this paper, we conceive new star-quadrature amplitude modulation (star-QAM) aided spatial modulation (SM) schemes. Our goal is to minimize the system’s average bit error probability (ABEP). More specifically, a new class of star-QAM constellations is introduced for SM, which is capable of flexibly adapting ring ratios of the amplitude levels. Then, under a specific MIMO configuration and a predetermined transmission rate, a simple and efficient ring-ratio optimization algorithm is proposed for the sake of minimizing the ABEP. Moreover, in order to further improve the performance of our star-QAM aided SM scheme, a diagonal precoding technique is proposed and a low-complexity minimum-distance based approach is conceived for extracting the precoding parameters. Our numerical results show that the proposed star-QAM aided SM arrangement provides beneficial system performance improvements compared to the identical-throughput maximum-minimum-distance (MMD) QAM and PSK benchmarkers. Moreover, our precoding scheme is capable of further improving the attainable system performance at a modest feedback requirement.
3741-3749
Yang, Ping
3dba2634-eb2b-4df8-a995-1061b841afe1
Xiao, Yue
10f13317-e86c-4b9e-bc7a-f7622c37ee01
Zhang, Bo
b4357fc4-109b-4499-a865-ad0b2386c076
Li, Shaoqian
7a1537c2-39b8-44d2-8d44-3f402e7c5b84
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Yang, Ping
3dba2634-eb2b-4df8-a995-1061b841afe1
Xiao, Yue
10f13317-e86c-4b9e-bc7a-f7622c37ee01
Zhang, Bo
b4357fc4-109b-4499-a865-ad0b2386c076
Li, Shaoqian
7a1537c2-39b8-44d2-8d44-3f402e7c5b84
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Yang, Ping, Xiao, Yue, Zhang, Bo, Li, Shaoqian, El-Hajjar, Mohammed and Hanzo, L.
(2014)
Star-QAM signaling constellations for spatial modulation.
IEEE Transactions on Vehicular Technology, PP (99), .
(doi:10.1109/TVT.2014.2306986).
(In Press)
Abstract
The performance of spatial modulation (SM) assisted multiple-input multiple-output (MIMO) communication systems is highly dependent on the specific amplitude/phase modulation (APM) signal constellation adopted. In this paper, we conceive new star-quadrature amplitude modulation (star-QAM) aided spatial modulation (SM) schemes. Our goal is to minimize the system’s average bit error probability (ABEP). More specifically, a new class of star-QAM constellations is introduced for SM, which is capable of flexibly adapting ring ratios of the amplitude levels. Then, under a specific MIMO configuration and a predetermined transmission rate, a simple and efficient ring-ratio optimization algorithm is proposed for the sake of minimizing the ABEP. Moreover, in order to further improve the performance of our star-QAM aided SM scheme, a diagonal precoding technique is proposed and a low-complexity minimum-distance based approach is conceived for extracting the precoding parameters. Our numerical results show that the proposed star-QAM aided SM arrangement provides beneficial system performance improvements compared to the identical-throughput maximum-minimum-distance (MMD) QAM and PSK benchmarkers. Moreover, our precoding scheme is capable of further improving the attainable system performance at a modest feedback requirement.
Text
tvt-hanzo-2306986-proof.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 6 March 2014
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 362861
URI: http://eprints.soton.ac.uk/id/eprint/362861
ISSN: 0018-9545
PURE UUID: 04e386ff-5f1c-4567-841c-364406eebede
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Date deposited: 12 Mar 2014 17:22
Last modified: 15 Mar 2024 03:42
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Contributors
Author:
Ping Yang
Author:
Yue Xiao
Author:
Bo Zhang
Author:
Shaoqian Li
Author:
Mohammed El-Hajjar
Author:
L. Hanzo
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