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We propose a blind interference alignment scheme for the vector broadcast channel where the transmitter is equipped with <i>M</i> antennas and there are <i>K</i> receivers, each equipped with a reconfigurable antenna capable of switching among <i>M</i> preset modes. Without any knowledge of the channel coefficient values at the transmitters and with only(More)
We show that the three-user M<sub>T</sub> &#x00D7; M<sub>R</sub> Multiple-Input Multiple-Output (MIMO) interference channel where each transmitter is equipped with M<sub>T</sub> antennas and each receiver is equipped with M<sub>R</sub> antennas has (M) d(M, N) =<sup>&#x0394;</sup> min (M/2-1/&#x03BA;, N/2+1/&#x03BA;) degrees of freedom (DoF) normalized by(More)
It has been conjectured that complex Gaussian interference channels with constant channel coefficients have only one degree-of-freedom (DoF) regardless of the number of users. While several examples are known of constant channels that achieve more than 1 DoF, these special cases only span a subset of measure zero. In other words, for almost all channel(More)
We explore the degrees of freedom (DoF) of the K &gt;; 3 user M<sub>T</sub> &#x00D7; M<sub>R</sub> MIMO Gaussian interference channel where each transmitter is equipped with M<sub>T</sub> and each receiver is equipped with M<sub>R</sub> antennas. Expressing the DoF characterization as a function of the ratio &#x03B3; = M/N, where M = min(M<sub>T</sub>,(More)
We present the genome sequence of the tammar wallaby, Macropus eugenii, which is a member of the kangaroo family and the first representative of the iconic hopping mammals that symbolize Australia to be sequenced. The tammar has many unusual biological characteristics, including the longest period of embryonic diapause of any mammal, extremely synchronized(More)
PURPOSE One approach to gaining insight into the biological pathways contributing to rod and cone photoreceptor death is to identify patterns of gene expression changes. In the present study, a custom retinal microarray was developed to analyze the rd1 mouse, a well-characterized animal model of human retinal degeneration. METHODS A microarray was(More)
Fundamentally, benefits of Multiple Input Multiple Output (MIMO) in wireless systems rest on increasing the number of Degrees of Freedom (DoFs) that can be exploited for transmission. However, obtaining such DoFs in MIMO often requires knowledge of Channel State Information (CSI) either at the transmitter (CSIT) and/or at the receiver (CSIR). This itself(More)
We consider the use of Blind Interference Alignment (BIA) in a cellular environment as a means for supporting downlink Multi-User MIMO (MU-MIMO) transmission without the need for channel state information at the transmitter (CSIT). This &#x201C;CSIT-blind&#x201D; characteristic of BIA is of particular interest for Frequency Division Duplex (FDD) systems,(More)