An efficient feedback scheme using compressive sensing for MIMO broadcast channel with random beamforming

Kiyoen Kim; Senghun Jang; Dongku Kim; Jeongwook Seo

doi:10.1109/ICCAE.2010.5451772

An efficient feedback scheme using compressive sensing for MIMO broadcast channel with random beamforming

Kiyoen Kim, Senghun Jang, Dongku Kim, Jeongwook Seo

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

In this paper we proposes an efficient feedback scheme using compressive sensing (CS) for MIMO broadcast channel(BC) with random beamforming(RBF). Feedback resources are opportunististically accessed by strong users whose SINR is larger than threshold. Strong users transmit same feedback information on feedback channel and they are indentified by BS using CS. There is reduction of the feedback overhead via CS. Besides, we can achieve sum-rate throughput as full feedback. To exploit CS, feedback signal must be sparse. However, because there exist a trade-off between the sparsity and multiplexing gain, we must know how to decide K-sparsity and threshold. Therefore, we drive relation between K-spasity and threshold. These are suitable to 'actual' BC feedback channel with CS.

Original language	English
Title of host publication	2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010
Pages	743-747
Number of pages	5
DOIs	https://doi.org/10.1109/ICCAE.2010.5451772
Publication status	Published - 2010
Event	2nd International Conference on Computer and Automation Engineering, ICCAE 2010 - Singapore, Singapore Duration: 2010 Feb 26 → 2010 Feb 28

Publication series

Name	2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010
Volume	2

Other

Other	2nd International Conference on Computer and Automation Engineering, ICCAE 2010
Country	Singapore
City	Singapore
Period	10/2/26 → 10/2/28

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Computer Science Applications
Control and Systems Engineering

Access to Document

10.1109/ICCAE.2010.5451772

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Kim, K., Jang, S., Kim, D., & Seo, J. (2010). An efficient feedback scheme using compressive sensing for MIMO broadcast channel with random beamforming. In 2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010 (pp. 743-747). [5451772] (2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010; Vol. 2). https://doi.org/10.1109/ICCAE.2010.5451772

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abstract = "In this paper we proposes an efficient feedback scheme using compressive sensing (CS) for MIMO broadcast channel(BC) with random beamforming(RBF). Feedback resources are opportunististically accessed by strong users whose SINR is larger than threshold. Strong users transmit same feedback information on feedback channel and they are indentified by BS using CS. There is reduction of the feedback overhead via CS. Besides, we can achieve sum-rate throughput as full feedback. To exploit CS, feedback signal must be sparse. However, because there exist a trade-off between the sparsity and multiplexing gain, we must know how to decide K-sparsity and threshold. Therefore, we drive relation between K-spasity and threshold. These are suitable to 'actual' BC feedback channel with CS.",

author = "Kiyoen Kim and Senghun Jang and Dongku Kim and Jeongwook Seo",

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Kim, K, Jang, S, Kim, D & Seo, J 2010, An efficient feedback scheme using compressive sensing for MIMO broadcast channel with random beamforming. in 2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010., 5451772, 2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010, vol. 2, pp. 743-747, 2nd International Conference on Computer and Automation Engineering, ICCAE 2010, Singapore, Singapore, 10/2/26. https://doi.org/10.1109/ICCAE.2010.5451772

An efficient feedback scheme using compressive sensing for MIMO broadcast channel with random beamforming. / Kim, Kiyoen; Jang, Senghun; Kim, Dongku; Seo, Jeongwook.

2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010. 2010. p. 743-747 5451772 (2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - In this paper we proposes an efficient feedback scheme using compressive sensing (CS) for MIMO broadcast channel(BC) with random beamforming(RBF). Feedback resources are opportunististically accessed by strong users whose SINR is larger than threshold. Strong users transmit same feedback information on feedback channel and they are indentified by BS using CS. There is reduction of the feedback overhead via CS. Besides, we can achieve sum-rate throughput as full feedback. To exploit CS, feedback signal must be sparse. However, because there exist a trade-off between the sparsity and multiplexing gain, we must know how to decide K-sparsity and threshold. Therefore, we drive relation between K-spasity and threshold. These are suitable to 'actual' BC feedback channel with CS.

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Kim K, Jang S, Kim D, Seo J. An efficient feedback scheme using compressive sensing for MIMO broadcast channel with random beamforming. In 2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010. 2010. p. 743-747. 5451772. (2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010). https://doi.org/10.1109/ICCAE.2010.5451772