Distributed Precoding with Weighted SLNR for Multi-User MIMO Systems

Zhai Changliang; Zhang Yinghai

Chinese︱Feedback︱Save this page

• Elaborating Academic Views 　　　　 • Exchanging Innovative Ideas
• Protecting Intellectual Properties 　　• Fast Sharing Science Papers

Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China

Home > Papers

Distributed Precoding with Weighted SLNR for Multi-User MIMO Systems

Zhai Changliang 1,Zhang Yinghai 2 * #

1.Electronic Engineering, Engering,Beijng University of Posts and Telecommunications, Beijing 100876

2.Electronic Engineering, Engering,Beijng University of Posts and Telecommunications,Bei Jing ,100876

*Correspondence author

#Submitted by

Subject:

Funding: National S&T Major Project （No.NO.2012ZX03003-001）

Opened online:31 July 2013

Accepted by: none

Citation: Zhai Changliang,Zhang Yinghai.Distributed Precoding with Weighted SLNR for Multi-User MIMO Systems[OL]. [31 July 2013] http://en.paper.edu.cn/en_releasepaper/content/4552879

The use of precoding in the downlink of multi-user multiple-input multiple-output (MU-MIMO) systems can suppress co-channel interference effectively. Many schemes have been given to design precoding matrix for different optimization objective. In this paper, a distributed precoding scheme, named block diagonalization with weighted signal to leakage plus noise ratio (BD-WSLNR) for MU-MIMO systems with multiple data streams is proposed. It can nullify the intra-cell interference and mitigate the weighted leakage interference to other cell users according to their interference affordability based on channel quality information (CQI). Besides, a generalized singular value decomposition (GSVD) based matrix calculation method is introduced to improve the calculation accuracy and reduce the gap between effective SINRs of multiple data streams. Simulation results show that, compared to the existed schemes such as block diagonalization (BD), max signal to leakage plus noise ratio (max-SLNR), and block diagona-lization with other cell interference (BD-OCI), the proposed precoding scheme achieves considerable gains in the spectral efficiency of edge users, while maintaining nearly the same achievable sum-rate.

Keywords:MU-MIMO; distributed precoding; weight SLNR; GSVD

For this paper

● PDF (0B)
● Revision 0 　　
● Print this paper
● Recommend this paper to a friend
● Add to my favorite list

Saved Papers

Please enter a name for this paper to be shown in your personalized Saved Papers list

Tags

Add yours

Related Papers

Other similar papers
● Group TXOP Sharing: MAC ...
● The (M, N)-s...

Statistics

PDF Downloaded	281
Bookmarked	0
Recommend	5
Comments	Array

Submit your papers

Alert Name:
Alerting to:
Authentication email will be sent to your email address in 24 hours
Frequency:
Email Message Format:	Plain text Graphical(HTML)

Complete the form below and we will recommend the selected titles to your friends on your behalf. * Indicates a required field.
Your name*:
Your email address*:
Recipient's name*:
Recipient's email address*:
(multiple recipient's names and email addresses should be separated with semicolons)
Your comments:	I thought you would find the page(s) useful.

Your name:
Your email address:
Recipient's name:
Recipient's email address:
(multiple recipient's names and email addresses should be separated with semicolons)
Your comments:	I thought you would find this page useful.

Disclaimer: This message was sent to your friend using the "Send it to a friend" facility on the Sciencepaper Online’ WWW site, http://www.paper.edu.cn/en. The Sciencepaper Online is not responsible for the content of this email, and anything said in this email does not necessarily reflect the Sciencepaper Online's views.

	Check out RSS, or use RSS reader to subscribe this item

Saved Papers