Abstract: Disclosed is a method for providing multi-screen service of a mobile terminal, the method including requesting and obtaining information on a second display device if the mobile terminal is connected with a cradling stand; activating a predetermined wireless communication interface and searching for a peripheral device using a network manager so as to connect the mobile terminal with the peripheral device; if the multifunctional remote control device is found and is connected with the mobile terminal, managing linkage between the mobile terminal and the multifunctional remote control device using an interaction manager; and if a service request signal is received from the multifunctional remote control device for the mobile terminal, changing screen information of the mobile terminal in accordance with characteristics of the second display device using a display manager and displaying the changed screen information on a display unit of the second display device.

Abstract: A proxying process method for traffic of a wireless node and a system using the method are provided. The proxying process method includes: maintaining a virtual node which stores a communication packet from a server, destined for a first node; and transmitting the stored communication packet from the virtual node to a second node when a transmission request for the communication packet is transmitted to the first node by the second node.

Abstract: Provided is a constellation rotation relay system and constellation rotation relay method which can acquire full diversity gain by performing constellation rotation for a channel matrix in a relay network when configuring a virtual MIMO channel. The constellation rotation system includes a matrix creator for creating a symbol matrix by configuring a symbol transmitted in parallel from a source of a relay network; and a constellation rotation unit constellation rotating the symbol in the symbol matrix by adding a constellation rotation matrix to the created symbol matrix.

Abstract: Provided is a constellation rotation relay system and constellation rotation relay method which can acquire full diversity gain by performing constellation rotation for a channel matrix in a relay network when configuring a virtual MIMO channel. The constellation rotation system includes a matrix creator for creating a symbol matrix by configuring a symbol transmitted in parallel from a source of a relay network; and a constellation rotation unit constellation rotating the symbol in the symbol matrix by adding a constellation rotation matrix to the created symbol matrix.

Abstract: Disclosed is a method for providing multi-screen service of a mobile terminal, the method including requesting and obtaining information on a second display device if the mobile terminal is connected with a cradling stand; activating a predetermined wireless communication interface and searching for a peripheral device using a network manager so as to connect the mobile terminal with the peripheral device; if the multifunctional remote control device is found and is connected with the mobile terminal, managing linkage between the mobile terminal and the multifunctional remote control device using an interaction manager; and if a service request signal is received from the multifunctional remote control device for the mobile terminal, changing screen information of the mobile terminal in accordance with characteristics of the second display device using a display manager and displaying the changed screen information on a display unit of the second display device.

Abstract: A channel allocation method and a communication device are provided. The channel allocation method includes determining a communication device type based on information received from neighboring communication devices, allocating a channel according to the communication device type, and transmitting the communication device type and information about the allocated channel to the neighboring communication devices.

Abstract: A proxying process method for traffic of a wireless node and a system using the method are provided. The proxying process method includes: maintaining a virtual node which stores a communication packet from a server, destined for a first node; and transmitting the stored communication packet from the virtual node to a second node when a transmission request for the communication packet is transmitted to the first node by the second node.

Abstract: Provided is a constellation rotation relay system and constellation rotation relay method which can acquire full diversity gain by performing constellation rotation for a channel matrix in a relay network when configuring a virtual MIMO channel. The constellation rotation system includes a matrix creator for creating a symbol matrix by configuring a symbol transmitted in parallel from a source of a relay network; and a constellation rotation unit constellation rotating the symbol in the symbol matrix by adding a constellation rotation matrix to the created symbol matrix.

Abstract: A method and system of relaying data are provided. The data is encoded into a turbo codeword by using a convolutional turbo code, and the turbo codeword is transmitted from a source to a relay and a destination by first puncturing the turbo codeword. The first punctured turbo codeword which is received in the relay is decoded and the decoded turbo codeword is transmitted from the relay to the destination by second puncturing the decoded turbo codeword. The turbo codeword received from the source and the relay to the destination are totaled respectively as a single turbo codeword and the totaled single turbo codeword is decoded and the data is recovered.

Abstract: A routing method of a wireless communication system is provided implementing advantageous features of both the tree routing and the link state routing. In the routing method, the system generates an adaptive tree table which defines a network in a tree structure of at least one branch with at least one node and each node generates a link state table which includes information on neighbor nodes, such that the packets are routed on the basis of the adaptive tree table and the link state table. Advantageous mechanisms of the tree routing and the link state routing are combined, thereby it is possible to eliminate most single point of failures of conventional tree routing and provide shorter paths compared with conventional tree routing.