Apparatus and method for space-time-frequency block coding for increasing performance

A frequency block and coding scheme technology, applied in the field of performance devices, can solve the problems of low execution efficiency of orthogonal space-time codes and the like

Active Publication Date: 2007-07-25
SAMSUNG ELECTRONICS CO LTD
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  • Description
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Problems solved by technology

In this system, the OFCs perform less efficiently, which means th

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  • Apparatus and method for space-time-frequency block coding for increasing performance
  • Apparatus and method for space-time-frequency block coding for increasing performance
  • Apparatus and method for space-time-frequency block coding for increasing performance

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Embodiment Construction

[0082] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

[0083] It is an object of the present invention to provide a space-time-frequency block coding scheme for improving performance in systems using FDFR orthogonal STFBC.

[0084] FIG. 6 is a block diagram of a transmitter in a mobile communication system using the STFBC scheme using feedback information from a receiver. This embodiment is explained as an example having very similar effects corresponding to the present invention. Here, it is assumed that the transmitter uses three Tx antennas.

[0085] Referring to Fig. 6, the precoder 600 will input the information symbol s 1 , s 2 , s 3 , s 4 each of which is multiplied by e jθ , that is, s in the complex plane 1 , s 2 , s ...

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Abstract

A space-time-frequency block coding apparatus and method in a transmitter with three transmit (Tx) antennas are provided. An input symbol sequence is transmitted through three Tx antennas according to a permutation method using a selected transmission matrix in order to improve the performance of an STFBC.

Description

technical field [0001] The present invention relates generally to a space-time-frequency block coding arrangement in a transmitter with three transmit (Tx) antennas, and more particularly to transmitting an input symbol sequence through three Tx antennas using a selected transmission matrix in order to improve a space-time-frequency block code (STFBC) performance device. Background technique [0002] The fundamental problem in communication is how to efficiently and reliably transmit data over a channel. Since the next generation of multimedia mobile communication requires a high-speed communication system capable of transmitting various information including video and wireless data in addition to focusing on voice services, it is important to enhance system efficiency. [0003] In a wireless channel environment of a mobile communication system, contrary to a wired channel environment, a transmission signal inevitably suffers loss due to several factors such as multipath i...

Claims

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Application Information

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IPC IPC(8): H04B7/06
CPCH04L1/0625H04L1/0643H04L1/0668H04L1/0681
Inventor 蔡赞秉尹圣烈郑鸿实卢元一朴东植金宰烈吴廷泰高均秉
Owner SAMSUNG ELECTRONICS CO LTD
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