Turbo Coded MIMO Using Interblock Memory
Date Issued
2006
Date
2006
Author(s)
Wang, Chung-Li
DOI
en-US
Abstract
In a paper authored by Ashikhmin, et. al., a low-density parity-check (LDPC) coded transmission scheme operated on multiple-input multiple-output (MIMO) fading channel was proposed, which can achieve capacity-approaching performance in case the code length is 100000 bits. Nevertheless, this scheme is difficult to use in case the code length is shorter than 10000 bits. According to Chen’s master thesis, LDPC coded MIMO using interblock memory outperform LDPC coded MIMO without interblock memory in some short code-length conditions. In this paper, we apply interblock memory to the turbo coded MIMO transmission system. First, a short description of applying interblock memory to turbo coded MIMO transmission system is given. We focus on the detection methods for the receiver scheme. Then we can explain the advantage of the proposed turbo coded MIMO by analyzing demapper transfer characteristics in Extrinsic Information Charts (EXIT charts), although EXIT charts usually works well only in the condition of long code length. Finally, our proposed schemes are verified by simulation results for various transmission antenna settings. The simulation results show that the proposed technique provides significant advantage in case that the code is short.
Subjects
區碼記憶
渦輪碼
多輸入多輸出
遞迴解碼
interblock memory
turbo codes
multiple-input multiple-output
iterative decoding
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-95-R92942109-1.pdf
Size
23.31 KB
Format
Adobe PDF
Checksum
(MD5):37bc021c1f4437cfb27a65cb8877997b