In this paper, the performance of average level crossing rate (LCR) and average fade duration (AFD) of the output signal of the maximum ratio combining (MRC) and the selection combining (SC) with a dual-branch receiver was analyzed. We derived some of the expressions with average LCR and AFD for both MRC and SC schemes operating in the correlated fading channel. The channel model of the diversi...

The implementation of modern high performance computer is increasingly directed toward parallelism in the hardware. However, most of the current fetch units are limited to one branch prediction per cycle and therefore, can fetch no more than one basic block per cycle. While fetching a single basic block each cycle is sufficient for implementations that issue small number of instructions per cyc...

Efforts to reduce power consumption of processors have gained much attention recently. Dynamic branch predictor, including BTB, is exercised in every instruction cycle, yet branch instructions only constitute a small percentage of instructions during program execution. This study proposes a novel method to collect the next branch distances of the recent branch instructions at runtime, in order ...

Advanced processors can simultaneously execute multiple instructions in parallel to achieve performance. Branches introduce control dependence between instructions. Branch prediction therefore is important to modern processors. Most present predictors use branch history to predict branch outcomes. Using branch history alone results in delay for identifying mispredictions. In this paper, a conte...

Instruction dependency introduced by conditional branch instructions, which is resolved only at run-time, can have severe performance impact on pipelined machines. A variety of strategies are in wide use to minimize this impact. Additional instruction-traffic generated by these branch-strategies can also have an adverse effect on the system performance. Therefore, in addition to the likely redu...

As the issue rate and depth of pipelining of high performance Superscalar processors increase, the importance of an excellent branch predictor becomes more vital to delivering the potential performance of a wide-issue, deep pipelined microarchitecture. We propose a new dynamic branch predictor (Two-Level Adaptive Branch Prediction) that achieves substantially higher accuracy than any other sche...

PURPOSE To carry out an anatomic study of superior laryngeal nerve in not preserved in formaldehyde and not frozen corpses. METHODS Thirty-eight male corpses from the Minas Gerais Medico-legal Institute (IML) were studied. In 18 corpses dissection was performed bilaterally and in 20 only on the left side, total number 56 nerves dissected. Their descriptive segments measurements and the anatom...

Two-dimensional dry foams coarsen according to the von Neumann law as dA / dt ∝ ( n − 6) where is number of sides a bubble with area A . Such reach self-similar scaling state and side-number distributions are stationary. Combining self-similarity law, we derive time derivatives moments distribution relation connecting averages that weighted by powers area. To test these predictions, collect ana...