Browsing by Subject "Power consumption"
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Item Open Access Comparative analysis of power consumption in asynchronous wavelength modular optical switching fabrics(Elsevier, 2011-04-02) Akar, N.; Eramo, V.; Raffaelli, C.Next-generation optical routers will be designed to support the flexibility required by Future Internet services and, at the same time, to overcome the power consumption bottleneck which appears to limit throughput scalability in today routers. A model to evaluate average power consumption in asynchronous optical switching fabrics is here presented to compare these architectures with other synchronous and asynchronous solutions. The combination of wavelength modular switching fabrics with low spatial complexity and asynchronous operation is demonstrated to be the most power-efficient solution among those considered which employ wavelength converters, through presentation and discussion of a thorough set of numerical results.Item Open Access Noise analysis of flexing crossbars under the victim-aggresssor model(2015-06) Erdemir, SertaçThis study investigates the e ects of crosstalk noise on exing crossbars, and proposes an e cient method for estimation. The estimation method is also applicable to other submicron VLSI circuits. Circuit theory is utilized to estimate crosstalk emergence due to coupling e ects and means of crosstalk reduction are investigated. Peak crosstalk noise amplitude, occurrence time, and time domain waveform are represented in closed form expressions. This research also introduces an empirical approach to compute the best case victim-aggressor alignment that minimizes the crosstalk noise on victim lines. In addition, it suggests a geometric approach reducing the adverse e ects of crosstalk noise on exing crossbars. Delay and signal quality for varied lengths of interconnect wires on interconnection networks using lossy transmission line theory are analyzed and examined in detail. Furthermore, crossbar networks are compared with other interconnection networks in terms of power consumptions.