Mohamed A. Elgamel

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With scaling down to deep submicron and nanometer technologies, noise immunity is becoming a metric of the same importance as power, speed, and area. Smaller feature sizes, low voltage, and high frequency are the characteristics for deep submicron circuits. This paper proposes a low voltage noise tolerant XOR-XNOR gate with 8 transistors. The proposed gate(More)
Efficiency in any wireless sensor based application relies significantly on the medium access control it implements. It is not likely that we will see in the near future a unified MAC protocol for wireless sensor networks that is suitable for all wireless sensor applications. In this context, we propose an event based medium access control (EB-MAC) that is(More)
As we scale down to deep submicron (DSM) technology, noise is becoming a metric of equal importance as power, speed, and area. Smaller feature sizes, low voltage, and high frequency are some of the characteristics for DSM circuits. A novel design methodology for the design of energy-efficient noise-tolerant XOR-XNOR circuits that can operate at low voltages(More)
Efficient target localization in wireless sensor networks is a complex and challenging task. Many past assumptions for target localization are not valid for wireless sensor networks. Limited hardware resources, energy conservation, and noise disruption due to wireless channel contention and instrumentation noise pose new constraints on designers nowadays.(More)
Motion estimation (ME) plays an important role in modern video coders since it consumes approximately 60–80% of the entire encoder’s computations. In this paper, three novel techniques are proposed to effectively speed up the ME process. First, a smart prediction technique for effectively deciding an initial search center is proposed. Second, a zero motion(More)
In this paper, we propose a low-power SRAM design by reducing the accessed bit line capacitance. Each column is divided into divisions. Each division consists of equal number of cells connected together with a local bit line and one local sense amplifier. The divisions are connected together with a global bit line that is also connected to the write,(More)