Author:Johnson, D; Kaka, Y; Hay, JDate:Sep 2006To profile the performance of an ad-hoc networking protocol, three possible methods can be applied. The first is to develop a mathematical model for the expected performance, the second is to run a series of computer simulations on the protocols ...Read more
Author:De Witt, JJ; Van Rooyen, GJDate:Sep 2006Despite the advantages that quadrature mixing offers to radio front-ends, its practical use has been limited due to its sensitivity towards gain and phase mismatches between its in-phase and quadrature channels. DC offsets are also a problem ...Read more
Author:Sokoya, OA; Xu, H; Takawira, FDate:Sep 2006This paper investigates the performance of super-orthogonal space time trellis codes when Virtual Antenna Arrays (VAA) is employed. The concept of virtual antenna arrays was developed to emulate Multiple-Input Multiple-Output (MIMO) schemes ...Read more