Vector Perturbation Techniques with Block Diagonalization for Multi-user MIMO Systems 


Vol. 35,  No. 10, pp. 922-930, Oct.  2010


PDF
  Abstract

Block diagonalization (BD) is an attractive technique that transforms the multi-user multiple-input multipleoutput (MU-MIMO) channel into parallel single-user MIMO (SU-MIMO) channels with zero inter-user interference (IUI). In this paper, we combine the BD technique with two deterministic vector perturbation (VP) algorithms that reduce the transmit power in MU-MIMO systems with linear precoding. These techniques are the fixed-complexity sphere encoder (FSE) and the QR-decomposition with M-algorithm encoder (QRDM-E). In contrast to the conventional BD VP technique, which is based on the sphere encoder (SE), the proposed techniques have fixed complexity and a tradeoff between performance and complexity can be achieved by controlling the size of the set of candidates for the perturbation vector. In MU-MIMO system with 4 users each equipped with 2 receive antennas, simulation results show that the proposed BD-FSE and BDQRDM-E outperforms the conventional BD-THP by 5.5 and 7.4㏈, respectively, at a target BER of 10-4.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

M. Mohaisen, D. Han, B. Hui, K. Chang, B. Koo, "Vector Perturbation Techniques with Block Diagonalization for Multi-user MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 10, pp. 922-930, 2010. DOI: .

[ACM Style]

Manar Mohaisen, DongKeol Han, Bing Hui, KyungHi Chang, and BonTae Koo. 2010. Vector Perturbation Techniques with Block Diagonalization for Multi-user MIMO Systems. The Journal of Korean Institute of Communications and Information Sciences, 35, 10, (2010), 922-930. DOI: .

[KICS Style]

Manar Mohaisen, DongKeol Han, Bing Hui, KyungHi Chang, BonTae Koo, "Vector Perturbation Techniques with Block Diagonalization for Multi-user MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 10, pp. 922-930, 10. 2010.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)






pISSN : 1226 - 4717
eISSN : 2287 - 3880