Complementary metal-oxide semiconductor (CMOS) technology has been the industry standard to implement Very Large Scale Integrated (VLSI) devices for the last two decades. Due to the consequences of miniaturization of such devices (i.e. increasing switching speeds, increasing complexity and decreasing power consumption), it is essential to replace them with a new technology. Quantum-dot c...

This thesis focuses on the design of powerand area-efficient parallel integrated receivers for multiple antenna wireless LAN systems. These receivers are part of an indoor parallel radio system that achieves 1 gigabit per second data rates and enables high bandwidth wireless communication between portable user devices and a high speed wired internet connection. Since a critical aspect for effic...

In this paper, we propose a multi-mode router, which supports three modes: bypass, bufferless and normal. By using the power gating technology, it can dynamically switch modes under different network loads, and effectively reduce the power consumption. Besides, in the bufferless mode, we propose an input priority judgment method and an output port allocation method to reduce the packet deflecti...

Historically, energy management in computer science has been predominantly treated as an activity of hardware optimization. A great deal of the effort in this area is concentrated on component activation, deactivation, and resources scheduling in order to provide a reduction of total power consumption. This study focuses on the subject of power consumption from the software developer’s point of...

In this paper, we discuss on accuracy of power dissipation models for CMOS VLSI circuits. Some researchers have proposed several e cient power estimation methods for CMOS circuits [1][2][3][4]. However, we do not know how accurate they are because we have not established a method to compare the estimated results of power consumption with power consumption of actual VLSI chips. To evaluate the a...

Most of the signal processing algorithms using floating point arithmetic, which requires millions of operations per second to be performed. For such stringent requirement design of fast, precise and efficient circuit is needed. This article present an IEEE 754 floating point unit using carry look ahead adder and radix-4 modified Booth encoder multiplier algorithm and the design is compared in t...

In today’s VLSI system design, power consumption is gaining more attention as compared to performance and area. This is due to battery life in portable devices and operating frequency of the design. Power consumption mainly consists of static power, dynamic power, leakage power and short circuit power. Dynamic power is dominant among all which depends on many factors viz. power supply, load cap...

today power consumption is considered to be one of the important issues. therefore, its reduction plays a considerable role in developing systems. previous studies have shown that approximately 50% of total power consumption is used in cache memories. there is a direct relationship between power consumption and replacement quantity made in cache. the less the number of replacements is, the less...