Data transmission method for dual diversity systems
AssigneeSamsung Electronics Co., Ltd.
InventorChae-Hag Yi
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Abstract
Methods for effectively transmitting data in dual diversity systems by utilizing Reed-Solomon coding is provided. Two Reed-Solomon (RS) coding schemes are considered for dual diversity systems: RS(n,k) codes with symbol diversity order of 2 and RS (n,k/2) codes with symbol diversity order of 1. We show that the second scheme utilizes the inherent error detecting capability of low rate RS codes. The RS (n, k/2) codes with symbol diversity order 1 significantly reduce the probability of undetected word error among accepted codeword and give comparable throughput to that of RS (n,k) codes with symbol diversity order 2.
Claims15
A method for transmitting data in a diversity system for compensating multipath fading in mobile radio communications, comprising the steps of:
- providing k information symbols of a signal to be transmitted for the mobile radio communications;
- coding the k information symbols into n coded symbols to obtain a codeword having a code rate of k/n;
- and
- transmitting the codeword over at least two independent channels for the diversity system, wherein the at least two independent channels transmit the codeword simultaneously.
A method for transmitting data in a dual diversity system for compensating multipath fading in mobile radio communications, comprising the steps of:
- providing k information symbols of a signal to be transmitted for the mobile radio communications;
- dividing the k information symbols into two symbol groups each having k/2 information symbols;
- coding the k/2 information symbols of each of the two symbol groups into n coded symbols to obtain a codeword having a code rate of k/2n;
- dividing the codeword into two code groups each having a code length of n/2;
- and
- transmitting the two code groups over two independent channels for the dual diversity system, each of the two code groups being simultaneously transmitted over corresponding one of the two independent channels.
A dual diversity system for transmitting data for mobile radio communications, comprising:
- an encoder for receiving a signal to be transmitted and for coding k information symbols of the signal into n coded symbols to generate a codeword having a code rate of k/n;
- and
- a transmitter having first and second independent channels connected to an output of the encoder in parallel, the transmitter for transmitting the codeword over the first and second independent channels simultaneously so that multipath fading in transmitted data is compensated.
A dual diversity system for transmitting data for mobile radio communications, comprising:
- a first divider for receiving a signal to be transmitted and for dividing k information symbols of the signal into first and second symbol groups each having k/2 information symbols;
- an encoder for coding the k/2 information symbols of each of the first and second symbol groups into n coded symbols to obtain a codeword having a code rate of k/2n;
- a second divider for dividing the codeword into first and second code groups each having a code length of n/2;
- and
- a transmitter having first and second independent channels connected to first and second outputs of the second divider, respectively, the transmitter transmitting the first and second code groups over the first and second independent channels, respectively, so that multipath fading in transmitted data is compensated.
Dependencies are inferred from the claim text.