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Apparatus and method for receiving differential space-time block code

A space-time block code, differential technology, applied in the direction of preventing/detecting errors, preventing errors, electrical components, etc. through diversity reception, and can solve problems such as signal-to-noise ratio loss

Inactive Publication Date: 2006-07-12
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0010] However, differential detection for this STBC scheme has a 3dB signal-to-noise ratio (SNR) penalty at any time compared to coherent detection for the STBC

Method used

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Embodiment Construction

[0019] A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and constructions thereof is omitted for conciseness.

[0020] The present invention relates to different reception techniques for transmission / reception of a differential STBC.

[0021] figure 1 is a block diagram of a general device for transmitting a differential STBC. refer to figure 1 , the device for transmitting a differential STBC includes a convolutional encoder 12 , an interleaver 13 and a differential STBC encoder 14 . The device generates data u from a source n Perform convolutional coding, and then perform interleaving processing, and then perform differential STBC coding on the interleaved result for transmission.

[0022] Convolutional codes are widely used because they have greater coding gain than block codes and are easy to decode. The device for transm...

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Abstract

Provided is an apparatus and method for receiving a differential space-time block code (STBC) without estimating a channel characteristic using an additional training sequence in a wireless communication system using a plurality of transmission / reception antennas. The apparatus for receiving a differential STBC includes a detector for detecting a symbol from a received differential STBC using a trellis diagram and a Viterbi algorithm, a deinterleaver for deinterleaving the detected symbol, and a decoder for decoding a signal deinterleaved by the deinterleaver.

Description

technical field [0001] The present invention generally relates to an apparatus and method for receiving a differential space-time block code (STBC), and more particularly to an apparatus and method for receiving a differential STBC in a wireless communication system using multiple transmit / receive antennas without using a Additional training sequences are used to estimate a channel characteristic. Background technique [0002] Recently, in wireless communication, there is an increasing demand for various services requiring high transmission rates, such as moving images or Internet (Internet) services, in addition to audio services. In order to offer as many users as possible an increasing variety of high-speed transmission services at the lowest possible cost, it is important to develop physical layer elements which can transmit more data with limited communication resources. Among the currently considered technologies for improving transmission efficiency, the multi-antenn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/02H04L1/06
CPCH04L1/0071H04L1/0631H04L1/005H04L1/0054
Inventor 朴乘莹尹相普李炼雨
Owner SAMSUNG ELECTRONICS CO LTD
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