Communication system performing interference alignment and interference alignment method

TL;DR: In this paper, a method, system and device are provided for interference alignment on a downlink downlink wireless communications system using a predetermined vector and channel knowledge from each transmitter to compute and feed back equivalent channel vector information from each receiver to its affiliated transmitter, with this information, each transmitter selects a set of affiliated receivers and constructs a transmitted signal by applying a selected precoding vector to rank 1 data.

TL;DR: In this article, a method, system and device are provided for using an indexed list of linearly independent, predetermined vectors Vref = {v1 ref,..., VM ref } and channel knowledge H, G from each transmitter to compute and feedback equivalent channel matrix information Hi, j eq to its affiliated transmitter based on the assigned/determined rank of the receiver.

TL;DR: In this paper, a hash-based routing table management in a distributed network switch is presented, where the routing table is divided into slices of buckets, then routing information is determined for the source address and a routing entry is generated.

TL;DR: In this paper, hash-based routing table management in a distributed network switch is described, where the routing table is divided into slices of buckets, each slice having a respective property and including one or more buckets.

TL;DR: In this article, the authors proposed a method for selecting pre-coding vectors in a multi-user MIMO system, comprising the steps of: transmitting a plurality of pilot signals without being precoded to the plurality of terminals; receiving a plurality-of-feedback signals from the pluralityof terminals, wherein at least one feedback signal includes a plurality.

TL;DR: In this paper, a degree of coupling between antennas is detected before communication is initiated, and a combination of antennas is selected based on the degree of couplings and communication is executed using the selected antennas.

TL;DR: In this paper, a method and apparatus for selecting an antenna in a communication system is presented, which includes a mobile station for determining a set of transmit antennas by considering statistical channel information and instantaneous channel information, and for feeding back the generated antenna selection information to a base station.

TL;DR: In this article, a multi-transmission/reception antenna apparatus and method are provided to reduce an inter-cell interference effectively existing in a multicell environment, where a channel information estimating unit (110) estimates channel reaction information between a wireless transmitting/receiving device and the first base station by using a signal received from the first BS belonging to a cell to which a WRSI also belongs, and estimates interference channel information indicating the degree of interference to be affected on the second BS.