Analysis of Capacity of the Improved Space-Time Block Code Based on MIMO System-Reference-Cited by-同舟云学术

Analysis of Capacity of the Improved Space-Time Block Code Based on MIMO System

Published:2024-07-20 Issue:4 Volume:28 Page:829-834
ISSN:1883-8014
Container-title:Journal of Advanced Computational Intelligence and Intelligent Informatics
language:en
Short-container-title:JACIII

Author:

Wang Zhongbao¹,Gu Jinliang²^ORCID,Wang Xingxing³,Zhu Weihua¹,Teng Zhijun²

Affiliation:

1. Jilin Technology College of Electronic Information, No. 65 Hanyang Street, Longtan District, Jilin City, Jilin Province 132022, China

2. School of Electrical Engineering, Northeast Dianli University, No.169 Changchun Road, Chuanying District, Jilin City, Jilin Province 132012, China

3. Modern Automobile R&D Center, Development Zone, 500 Changjiang Road, Fushan District, Yantai City, Shandong Province 264000, China

Abstract

The anti-intereference ability can be strengthened and the BER can be decreased when space-time block code (STBC) is applied to MIMO systems. The existing quasi-orthogonal code TBH can effectively improve the system capacity, but the effect is not good at high signal-to-noise ratio (SNR). In this paper, we introduce an improved quasi-orthogonal code, derive system capacity formula not with space-time coding but with TBH and improved quasi-orthogonal STBC, and simulate the relationship curve of the SNR and capacity in these systems based on MATLAB. The simulation shows that the system capacity with the improved code is bad in low SNR, but much better than that of the existed code with the increasing SNR, and the advantage on increasing capacity is outstanding, especially when the SNR is high.

Publisher

Fuji Technology Press Ltd.

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