摘要:
Provided is a sequential transmission multi-beamforming apparatus and method with a low complexity based on a Hadamard matrix. A simple codebook may be generated based on the Hadamard matrix and thus, a number of weighted-vectors is reduced and a complexity of hardware is decreased. A diversity gain may be maximized based on a spatial diversity processing apparatus and a beamforming weighted vector may be systematically generated.
摘要:
The present invention relates to an apparatus and method for transmitting/receiving streaming data using multiple paths, in which the streaming data is smoothly reproduced without being interrupted, and more particularly, to an apparatus and method for transmitting/receiving streaming data using multiple paths, in which exchange of the streaming data is performed in real-time using the multiple paths regardless of obstacles. The method for transmitting streaming data using multiple paths includes managing and maintaining a path list including sequence information about a transmission path capable of transmitting data, framing the streaming data, and transmitting the framed streaming data via the transmission path according to the sequence information.
摘要:
Disclosed are a data transceiver and a method thereof in a wireless communication system, and particularly, is a data transceiver and method thereof using multiple routes in the wireless communication system. The data transmitting/receiving method using the multiple routes in the wireless communication system includes setting a direct route to a corresponding station and a relay route to a relay device, selecting one route from among the direct route and relay route, and transmitting/receiving data through the selected route.
摘要:
A method and apparatus for allocating a resource in a wireless network using a directional antenna is provided. The method and apparatus for allocating a resource in a wireless network using a directional antenna may spatially reuse resources using the directional antenna, allocate resources to enable a maximum number of groups to be transmitted in a given time or to enable a group including a number of links to be transmitted first, and thereby may reduce communication delay and increase throughput.
摘要:
Provided are a method of configuring a protocol header in a wireless communication system, and a communication apparatus and method using the protocol header configuration method. The protocol header may include a fixed length physical layer (PHY) header containing information associated with the number of Media Access Control (MAC) service data units, a variable length PHY header containing information associated with a segment constituting a payload, a MAC header containing information associated with the MAC service data units, and a Header Check Sequence (HCS) checking an error regarding a combination of the fixed length PHY header, the variable length PHY header, and the MAC header.
摘要:
An Unequal Error Protection (UEP) transmission apparatus comprises a bit separator unit configured to, when video data are received, separate pixels of the video data into Most Significant Bits (MSBs) and Least Significant Bits (LSBs) according to a degree of importance on a pixel-component basis; a header generation unit configured to create an MSB sub-frame and a LSB sub-frame based on the respective MSBs and LSBs and create an MSB Medium Access Control (MAC) sub-frame and a LSB MAC sub-frame to which respective headers are added; and a channel coding unit configured to create a channel-encoded MSB data and a channel-encoded LSB data by performing error correction encodings corresponding to the respective MSB MAC sub-frame and LSB MAC sub-frame and add padding bits, corresponding to the respective channel-encoded MSB data and channel-encoded LSB data, to the channel-encoded MSB data and channel-encoded LSB data.
摘要:
Designs and techniques associated with power amplifiers for amplifying RF signals to provide variable power amplification and improved linearity in various RF amplification circuits, including power amplifiers operated under the power back-off conditions.
摘要:
Disclosed are a wing deployment apparatus and an apparatus for launching a flying object having the same, the wing deployment apparatus including wings configured to be in a folded state and a deployed state, a driving unit connected to the wings, and configured to drive the wings to be switched from the folded state to the deployed state or vice versa, and a damper cooperative with the operation of the driving unit, and configured to damp a driving force of the driving unit from the start of the wings being moved to the completion of the movement of the wings.
摘要:
Provided is an apparatus and method for transmitting and a receiving data using a relay device in a centralized Media Access Control (MAC). The apparatus may include: a channel decision unit to determine a channel status with respect to a communication path using a corresponding device and a communication path using a relay device; a path selection unit to select at least one communication path between the communication path using the corresponding device and the communication path using the relay device, based on the channel status; and a transceiver to transmit and receive the data via the selected at least one communication path.
摘要:
Provided are a method of configuring a protocol header in a wireless communication system, and a communication apparatus and method using the protocol header configuration method. The protocol header may include a fixed length physical layer (PHY) header containing information associated with the number of Media Access Control (MAC) service data units, a variable length PHY header containing information associated with a segment constituting a payload, a MAC header containing information associated with the MAC service data units, and a Header Check Sequence (HCS) checking an error regarding a combination of the fixed length PHY header, the variable length PHY header, and the MAC header.