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Coded MIMO with asymmetric constellation sizes

Coded MIMO with asymmetric constellation sizes
Coded MIMO with asymmetric constellation sizes
An asymmetric constellation scheme for coded multiple-input–multiple-output (MIMO) transmission is proposed, which applies different constellation mappings to different transmit streams and carefully selects the coding rates for different transmit streams. An improved power allocation is derived to naturally incorporate with the coding rate selection and to further enhance the achievable performance. The proposed scheme provides more flexible choices of data rate selection, and by employing fixed-complexity sphere decoding (FSD) detection, it achieves better performance with reduced detection complexity in comparison with the conventional MIMO using the FSD-based detection with the same constellation set for all streams
0018-9545
4338-4344
Qian, Chen
2b85263f-c5ae-413e-a0d3-4c3abd84ff61
Wang, Zhaocheng
a6bc4037-d26d-4ddd-9ce5-f018980115b6
Lu, Zhaohua
f0fbf953-3f78-4c1c-89d3-87b3c582dd84
Dai, Linglong
a3b9a8e1-777f-4196-a388-969444c7239d
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Qian, Chen
2b85263f-c5ae-413e-a0d3-4c3abd84ff61
Wang, Zhaocheng
a6bc4037-d26d-4ddd-9ce5-f018980115b6
Lu, Zhaohua
f0fbf953-3f78-4c1c-89d3-87b3c582dd84
Dai, Linglong
a3b9a8e1-777f-4196-a388-969444c7239d
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80

Qian, Chen, Wang, Zhaocheng, Lu, Zhaohua, Dai, Linglong and Chen, Sheng (2015) Coded MIMO with asymmetric constellation sizes. IEEE Transactions on Vehicular Technology, 64 (9), 4338-4344. (doi:10.1109/TVT.2014.2361646).

Record type: Article

Abstract

An asymmetric constellation scheme for coded multiple-input–multiple-output (MIMO) transmission is proposed, which applies different constellation mappings to different transmit streams and carefully selects the coding rates for different transmit streams. An improved power allocation is derived to naturally incorporate with the coding rate selection and to further enhance the achievable performance. The proposed scheme provides more flexible choices of data rate selection, and by employing fixed-complexity sphere decoding (FSD) detection, it achieves better performance with reduced detection complexity in comparison with the conventional MIMO using the FSD-based detection with the same constellation set for all streams

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Published date: 15 September 2015
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 381636
URI: https://eprints.soton.ac.uk/id/eprint/381636
ISSN: 0018-9545
PURE UUID: 6091be93-0b09-444a-b294-42515bbcb808

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Date deposited: 09 Oct 2015 11:13
Last modified: 17 Jul 2017 20:25

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