A generalization of orthogonal arrays, namely cluster orthogonal arrays (CLOA), is introduced and some properties and construction methods are studied. The universal optimality of the fractional factorial designs represented by cluster orthogonal arrays is proved.

Two complex orthogonal space-time codes for eight transmit antennas" (2004). Two new constructions of complex orthogonal space-time block codes of order 8 based on the theory of amicable orthogonal designs are presented and their performance compared with that of the standard code of order 8. These new codes are suitable for multi-modulation schemes where the performance can be sacrificed for a...

The fundamental concepts and challenges of orthogonal time frequency space (OTFS) modulation have been reviewed in Part I this three-part tutorial. In second part, we provide an overview the state-of-the-art transceiver designs for OTFS systems, with a particular focus on cyclic prefix (CP) design, window pulse shaping, channel estimation, signal detection. Furthermore, analyze performance modu...

yazd jame mosque can be named as the most brilliant building of this city. ancientness of this mosque refers to before islam time and it was witness of many changes proportional to its time.the decorations were always one of the iran architecture principle and are in very special important in evaluating it.we encounter with various decorations during investigating yazd jame mosque like other bu...