Performance of multistage interference cancellation (MIC) and three combining techniques, i.e., multipath decorrelating (MIC-DECO), optimum combining (MIC-OPTM), and Rake combining (MIC-RAKE) for asynchronous QPSK/ DS/CDMA over frequency-selective multipath Rayleigh fading channels is studied. The analytical bit error probabilities of the MIC-DECO and MIC-OPTM are derived and shown to be in a g...

To improve the cutting quality of stone–plastic composites, a series milling experiments were performed using response surface, binary, and microanalysis methodologies, paying special attention to effects parameters (rake angle from 6° 14°, spindle speed 5000 rpm 7000 rpm, feed rate 10 m/min 20 m/min, depth 0.5 mm 2 mm) on machined surface. Surface damage was mainly concentrated crest two axial...

An issue of the parameter selection in various branches of a multi-antenna receiver system determines its effectiveness. A significant effect on these parameters are correlation properties of received signals. In this paper, the assessment of the signal correlation properties for different environmental conditions is presented. The obtained results showed that depending on the receiver speed, t...

* Corresponding author – [email protected] Tel: 414-229-4126 Fax:414-229-6958 ABSTRACT Understanding the tribological aspects of machining processes is essential for increasing the dimensional accuracy and surface integrity of products. In the present investigation, orthogonal metal cutting simulations were performed using an explicit finite-element code, LS-DYNA. In the simulations, a rigid stee...

Power control possiblities are explored for the downlink of a Time-Division Duplex (TDD) CDMA system while employing three different kinds of multipath diversity combining schemes namely the RAKE, the pre-RAKE [2] and the transmit antenna pre-selection. In the latter two, knowledge of the channel characterstics is employed at the base-station to provide maximum decoupling between users on the d...