Disclosed is an olefin containing stream from an oxygenate to olefin process, and a process for making olefin dimer and oligomer product from the olefin containing stream using a nickel based oligomerization catalyst. The light emitting diode is formed by creating two semiconductor multilayers and bonding them. The plurality of cells is provided in parallel with one another. The network may generate a hardware NACK in certain cases that, for example, if there is no NIC attached, or a NIC is attached but powered down. The method includes dividing a frame into a plurality of physical layer zones, allocating the plurality of data streams to the plurality of physical layer zones, allocating signaling information associated with the plurality of physical layers to at least one of the plurality of physical layer regions, and transmitting the frame to which the signaling information is allocated. The audio signal processing unit decompresses digital audio data into an audio signal.