Multiple LDPC-Encoder Layered Space-Time-Frequency Architectures for OFDM MIMO Multiplexing

Huang, Yuanliang and Wang, Jiangzhou (2010) Multiple LDPC-Encoder Layered Space-Time-Frequency Architectures for OFDM MIMO Multiplexing. Wireless Personal Communications . (The full text of this publication is not available from this repository)

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Abstract

This paper is focused on the study of layered space-time-frequency (LSTF)architectures with channel coding for orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) multiplexing systems for high speed wireless communicationsover a frequency-selective fading channel. In order to achieve the available spatial,temporal and frequency diversities, and also make the system implementation feasible for high speed OFDM MIMO multiplexing, a novel LSTF architecture with multiple channel encoders is proposed with each independently coded layer being threaded in the three-dimensional space-time-frequency transmission resource array. Non-iterative receiver is adopted which consists of list sphere detector and irregular low-density parity-check codes as the constituent codes. Simulation results show that the performance of the proposed multipleencoder LSTF architecture is very close to that of the conventional single-encoder LSTF where coding is applied across the whole information stream. However, due to the use of multiple parallel encoders/decoders with a shorter codeword length, the proposed LSTF architecture has much lower hardware processing speed and complexity than the conventional LSTF.

Item Type: Article
Uncontrolled keywords: OFDM, MIMO multiplexing, Threaded layered space-time-frequency architecture, List sphere detection, Irregular-LDPC code, Imperfect channel estimation
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunications > TK5103.4 Broadband (inc wireless broadband)
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: J. Harries
Date Deposited: 08 Feb 2011 14:20
Last Modified: 22 May 2014 14:53
Resource URI: http://kar.kent.ac.uk/id/eprint/26322 (The current URI for this page, for reference purposes)
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