Method and apparatus for transmitting and receiving signal
AssigneeIndustry-Academic Cooperation Foundation, Yonsei University
InventorsChung Yong Lee, Mi Sun Yoon
Life of this patent
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Abstract
Provided are a method and an apparatus for transmitting a signal suitable for an indoor environment. The method for transmitting a signal according to an exemplary embodiment of the present invention includes: preprocessing a signal using a signal power to sidelobe power ratio (SSR) parameter defining a signal to sidelobe ratio to minimize an inter-symbol interference and prevent performance deterioration due to reduction in signal strength; and transmitting the preprocessed signal to a receiving apparatus through a predetermined channel.
Claims20
A method for transmitting a signal, comprising:
- preprocessing a signal to be transmitted using a time reversal (TR) filter applied with a weighted value to reduce an inter-symbol interference of the signal and relieve performance deterioration due to reduction in signal strength, wherein the weighted value is calculated using a signal power to sidelobe power ratio (SSR) parameter defining a signal to sidelobe ratio, and wherein the SSR parameter is generated by the TR filter applied with the weighted value and a predetermined channel;
- and
- transmitting the preprocessed signal to a receiving apparatus through a predetermined channel.
An apparatus for transmitting a signal, comprising:
- a signal preprocessing unit preprocessing a signal using a time reversal (TR) filter applied with a weighted value to minimize an inter-symbol interference and prevent performance deterioration due to reduction in signal strength, wherein the weighted value is calculated using a signal power to sidelobe power ratio (SSR) parameter defining a signal to sidelobe ratio, and wherein the SSR parameter is generated by the TR filter applied with the weighted value and a predetermined channel;
- and
- a signal transmitting unit transmitting the preprocessed signal to a receiving apparatus through a predetermined channel.
A method for generating an improved time reversal filter, comprising:
- representing a time reversal filter applied with any weighted value and a predetermined channel by one equivalent channel;
- generating a signal power to sidelobe power ratio (SSR) parameter defining a signal to sidelobe ratio from the equivalent channel;
- calculating the weighted value maximizing the SSR parameter;
- and
- applying the calculated weighted value to the time reversal filter in reduce an inter-symbol interference of the signal and relieve performance deterioration due to reduction in signal strength.
A receiving apparatus, comprising:
- a signal receiving unit receiving a preprocessed signal through a predetermined channel, wherein the preprocessed signal is preprocessed using a time reversal (TR) filter applied with a weighted value to minimize an inter-symbol interference and prevent performance deterioration due to reduction in signal strength in a transmitting apparatus, wherein the weighted value is calculated using a signal power to sidelobe power ratio (SSR) parameter defining a signal to sidelobe ratio, and wherein the SSR parameter is generated by the TR filter applied with the weighted value and the predetermined channel.
Dependencies are inferred from the claim text.