Antenna selection for energy efficient MIMO OFDM wireless systems
Báo cáo hóa học: "Research Article Antenna Selection for MIMO Systems with Closely Spaced Antennas" ppt
... Hybrid selection FFT based selection Phase-shift based selection Reduced full system w/o selection Hybrid selection FFT based selection Phase-shift based selection Reduced full system w/o selection ... paper, we proposed a study of some typical hard and soft AS methods for MIMO systems with closely spaced antennas We assumed antenna elements are placed linearly i...
RECOMMENDED VENTILATION STRATEGIES FOR ENERGY-EFFICIENT PRODUCTION HOMES pdf
... residential ventilation systems for the U.S Environmental Protection Agency’s (EPA’s) ENERGY STAR® Homes program and recommends mechanical ventilation strategies for new, low-infiltration, energy-efficient, ... Heat-recovery Ventilation 16 Figure Ventilation Costs in Boston Homes with Gas Furnace/AC 21 Figure Ventilation Costs in Wash DC Homes with Gas Furnace/AC 22 Fig...
Báo cáo sinh học: " Performance evaluation of space-time-frequency spreading for MIMO OFDM-CDMA systems" ppt
... an open-loop MIMO OFDM-CDMA scheme using space-timefrequency spreading (STFS), in the presence of frequency-selective Rayleigh-fading channel The BER and BLER performance of the OFDM-CDMA system ... scheduling In addition, it offers better diversity/multiplexing trade-off The performance of MIMO OFDM–CDMA scheme using STFdomain spreading is investigated with zero-forcing...
Báo cáo toán học: " Performance evaluation of space-time-frequency spreading for MIMO OFDM-CDMA systems" pptx
... N c , the OFDM-CDMA 60 Proposed OFDM-CDMA 2D OFDM-CDMA Number of Users 50 40 30 20 10 0 10 12 14 16 SNR dB Figure 10 System throughput comparison for OFDM-CDMA system with 4Tx, 4Rx of the proposed ... scheduling In addition, it offers better diversity/multiplexing trade-off The performance of MIMO OFDM-CDMA scheme using STF-domain spreading is investigated with zero-fo...
Báo cáo hóa học: " Low complexity antenna selection for V-BLAST systems with OSIC detection" docx
... near-optimal performance for the MIMO systems with a small number of antennas In the systems with a large number of antennas, we can achieve even higher complexity reduction without significant performance ... 1983) doi:10.1186/1687-1499-2011-6 Cite this article as: Bae and Lee: Low complexity antenna selection for V-BLAST systems with OSIC detection EURASIP Jour...
Báo cáo hóa học: "Synthesis and characterization of VO2-based thermochromic thin films for energy-efficient windows" pdf
... Mo, and Nb and different doping concentrations We report on the influence of each element and respective concentrations on the crystal structure of the films, optical /thermochromic performance and ... derivative of both curves of the hysteresis loops (heating and cooling) and considering the mean value Results and discussion Structural characterization The crystal s...
Báo cáo hóa học: " Research Article Optimal Channel Selection for Spectrum-Agile Low-Power Wireless Packet Switched Networks in Unlicensed Band" doc
... is, two interfering packets were transmitted during that time as shown in Figure Since in practical scenarios the interference probability 1, the probability of having two interfering packets ... Gittins indices makes the algorithm try unexplored channel until enough information is gained about them 3.2.2 Channel selection algorithm The channel selection can be described using t...
Báo cáo hóa học: "Research Article A Practical, Hardware Friendly MMSE Detector for MIMO-OFDM-Based Systems" pptx
... on an FPGA has a single-clock latency Based on the complexity assessment in this section and the fact that we target an FPGA implementation where a number of dedicated multipliers are available, ... enhances numerical stability; and (d) an aggressive time-shared VLSI architecture The above techniques are quite general and are readily applicable to any MMSE- based MIMO detector implemen...
Overview of recent technology for energy efficient in lighting in textiles
... Philips Lighting However, dimming CFL and MH could be difficult © 2009 Rensselaer Polytechnic Institute All rights reserved 28 GE Lighting GE Lighting 28 Lamps for industrial applications Linear ... a major thoroughfare of Jing Jiang City in the Jiangsu province of China The 180W prototype LED streetlights were installed by Jiangsu Hua Jing Photoelectronics for replacing tradi...
Software techniques for energy efficient memories
... Introduction Energy Efficient Memories Device Innovations Non-Volatile Memories SSD/Flash Resistive Memories STT-RAM, MRAM, PCM Racetrack Memories Design Innovations Reconfigurable Memories DVS/DVFS Memories ... efficient memories 1.1 Energy Efficient Memories There are broadly two kinds of energy efficient memories First, memories that are built with low power consuming...
Blind channel estimation for MIMO OFDM communication systems
... this thesis is the development of three blind channel estimation and one blind source separation algorithms for MIMO- OFDM systems The first proposed channel estimation algorithm is a subspace based ... BLIND CHANNEL ESTIMATION FOR MIMO OFDM COMMUNICATION SYSTEMS CHEN XI (M.Sc., National University of Singapore, Singapore) A THESIS SUBMITTED FOR THE DEGREE...
System level design techniques for energy efficient embedded systems
... SYSTEM- LEVEL DESIGN TECHNIQUES FOR ENERGY- EFFICIENT EMBEDDED SYSTEMS This page intentionally left blank System- Level Design Techniques for Energy- Efficient Embedded Systems by MARCUS ... techniques that allow an effective automated design of energy- efficient embedded systems Special emphasis is placed upon systemlevel co-synthesis techniques...
MIMO OFDM COMMUNICATION SYSTEMS
... plays a significant role for MIMOOFDM systems For this reason, it is the first part of my dissertation to work on channel estimation of MIMO- OFDM systems The maturing of MIMO- OFDM technology will lead ... referred to as OFDM Since we aim at performance enhancement for wireless communication systems, we use the term OFDM throughout this thesis Furthermore, we only use the term...
Báo cáo hóa học: " Layered Video Transmission on Adaptive OFDM Wireless Systems" pot
... function gain related to the nth subchannel, and wn is a weight coefficient which allows nonuniform power level allocation on the transmitter side as Layered Video Transmission on Adaptive OFDM Wireless ... communications, joint source and channel coding, and wireless communication systems Layered Video Transmission on Adaptive OFDM Wireless Systems M Chiani was...
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