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Discrete-input continuous-output memoryless channel capacity of cooperative hierarchical modulation

Discrete-input continuous-output memoryless channel capacity of cooperative hierarchical modulation
Discrete-input continuous-output memoryless channel capacity of cooperative hierarchical modulation
Hierarchical modulation (HM) is a layered modulation scheme, which is widely employed by the telecommunication industry. The higher flexibility and lower complexity of the HM scheme has its dramatic benefits for wireless communications, hence the achievable performance of cooperation-aided coded HM has drawn substantial research interests. In this study, a triple-layer HM-aided four-node cooperative communication system is proposed, and its discrete-input continuous-output memoryless channel capacity is derived, which is used for finding the optimal position of the relay nodes as well as to design appropriate HM constellations. The authors’ simulation results show that if a rate-1/2 ‘perfect’ channel code is assumed, the four-node network becomes capable of conveying a coded HM-64QAM signal in three time slots at an average signal-to-noise ratio of ?0.71 dB.
65-71
Sun, Hua
2e2bad09-8ba9-4d9b-afa8-2a6a290eeaa2
Ng, Soon Xin
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Sun, Hua
2e2bad09-8ba9-4d9b-afa8-2a6a290eeaa2
Ng, Soon Xin
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Sun, Hua, Ng, Soon Xin and Hanzo, Lajos (2016) Discrete-input continuous-output memoryless channel capacity of cooperative hierarchical modulation. IET Communications, 10 (1), 65-71. (doi:10.1049/iet-com.2015.0359).

Record type: Article

Abstract

Hierarchical modulation (HM) is a layered modulation scheme, which is widely employed by the telecommunication industry. The higher flexibility and lower complexity of the HM scheme has its dramatic benefits for wireless communications, hence the achievable performance of cooperation-aided coded HM has drawn substantial research interests. In this study, a triple-layer HM-aided four-node cooperative communication system is proposed, and its discrete-input continuous-output memoryless channel capacity is derived, which is used for finding the optimal position of the relay nodes as well as to design appropriate HM constellations. The authors’ simulation results show that if a rate-1/2 ‘perfect’ channel code is assumed, the four-node network becomes capable of conveying a coded HM-64QAM signal in three time slots at an average signal-to-noise ratio of ?0.71 dB.

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Accepted/In Press date: 8 September 2015
Published date: 4 January 2016

Identifiers

Local EPrints ID: 383512
URI: http://eprints.soton.ac.uk/id/eprint/383512
PURE UUID: 13c2a2d7-cbf0-45bd-90dc-27db6ee53628
ORCID for Soon Xin Ng: ORCID iD orcid.org/0000-0002-0930-7194
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 16 Nov 2015 09:43
Last modified: 18 Feb 2021 16:50

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Contributors

Author: Hua Sun
Author: Soon Xin Ng ORCID iD
Author: Lajos Hanzo ORCID iD

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