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Whitepapers

Physical-Layer Multicasting by Stochastic Transmit Beamforming and Alamouti Space-Time Coding

May 9, 2013 12:00am PDT

Consider transceiver designs in a multiuser Multi-Input Single-Output (MISO) downlink channel, where the users are to receive the same data stream simultaneously. This problem, known as...

Provided by: Chinese University of Hong Kong

Whitepapers

Multiple Target Three-Dimensional Coordinate Estimation for Bistatic MIMO Radar With Uniform Linear Receive Array

April 17, 2013 12:00am PDT

A novel scheme to achieve Three-Dimensional (3D) target location in bistatic radar systems is evaluated. The proposed scheme develops the additional information of the bistatic radar, that is the...

Provided by: EURASIP

Whitepapers

Weighted Sum-Rate Maximization for Multi-User SIMO Multiple Access Channels in Cognitive Radio Networks

April 17, 2013 12:00am PDT

In this paper, an efficient distributed and parallel algorithm is proposed to maximize the sum-rate and optimize the input distribution policy for the Multi-User Single Input Multiple Output...

Provided by: EURASIP

Whitepapers

Spatial Compressive Sensing for MIMO Radar

April 17, 2013 12:00am PDT

The authors study compressive sensing in the spatial domain for target localization in terms of Direction Of Arrival (DOA), using Multiple-Input Multiple-Output (MIMO) radar. A sparse localization...

Provided by: Institute of Electrical & Electronic Engineers

Whitepapers

Low-Mobility Channel Tracking for MIMO-OFDM Communication Systems

April 15, 2013 12:00am PDT

It is now well understood that by exploiting the available additional spatial dimensions, Multiple-Input Multiple-Output (MIMO) communication systems provide capacity gains, compared to a...

Provided by: EURASIP

Whitepapers

Comparison of Developing a Small CMS App With and Without FatDB

April 15, 2013 12:00am PDT

FatCloud has developed a new NoSQL database called FatDB, which includes additional features such as a work queue, file management system and cache. This paper is to conduct an apple-to-apple...

Provided by: FatCloud

Blog Post

Better iOS code: Wield the power of Core Image

April 2, 2013 1:04pm PDT

Learn to wield the power of Core Image with this tutorial from Marcio Valenzuela.

Whitepapers

Effect of Receive Spatial Diversity on the Degrees of Freedom Region in Multi-Cell Random Beamforming

April 2, 2013 12:00am PDT

The Random BeamForming (RBF) scheme, by exploiting multi-user diversity based scheduling, is able to achieve interference-free downlink transmissions with only partial Channel State Information...

Provided by: Institute of Electrical & Electronic Engineers

Whitepapers

Voice Call Implementation Using Bluetooth Scatternet

April 1, 2013 12:00am PDT

Almost all cell phones are having Bluetooth capabilities nowadays. A number of usage models such as File transfer, LAN access, Wireless headset, Cordless phone are defined in Bluetooth profile...

Provided by: International Journal of Computer Networks and Wireless Communications (IJCNWC)

Whitepapers

An Information Theoretic Take on Time Reversal for Nonstationary Channels

April 1, 2013 12:00am PDT

It has been shown that Time-Reversal (TR) techniques focus energy back to the dominant scatters, lead to super-resolution focusing, and gains in detection. Time reversal has so far mainly been...

Provided by: Institute of Electrical & Electronic Engineers

Whitepapers

Linear PWM Strategy for SMPS

April 1, 2013 12:00am PDT

A switched-mode power supply (Switching-Mode Power Supply or SMPS) is an electronic Power supply incorporates a switching regulator in order to be highly efficient in the conversion of electrical...

Provided by: International Scientific Research Organization for Science, Engineering and Technology

Whitepapers

Performance Comparison of MIMO Systems Over AWGN and Rician Channels Using OSTBC4 With Zero Forcing Receivers

April 1, 2013 12:00am PDT

Multiple-Input Multiple-Output (MIMO) is used in wireless communications to achieve high data rates within the limited frequency spectrum. MIMO uses multiple transmitting and receiving antennas so...

Provided by: Lovely Professional University

Whitepapers

Adaptive Modulation Performance in MIMO-OSTBC Over Rayleigh Fading Channel

April 1, 2013 12:00am PDT

This paper presents the performance of adaptive modulation with multiple input multiple output orthogonal space time block coding MIMO-OSTBC over frequency selective Rayleigh fading channel using...

Provided by: The International Journals of Engineering & Sciences (IJENS)

Whitepapers

BER Analysis of MIMO-OFDM System in Different Fading Channel

April 1, 2013 12:00am PDT

Today commercial wireless communication systems are required to provide higher data rates and reliable communication. Two major challenges in system design are the limited spectrum and the fading...

Provided by: International Journal of Application or Innovation in Engineering & Management (IJAIEM)

Whitepapers

Wideband MIMO Channel Capacity Analysis Based on Indoor Channel Measurement

March 22, 2013 12:00am PDT

Based on the channel measurement in a typical indoor environment, wideband Multi-Input Multi-Output (MIMO) channel capacity analysis result is reported in this paper. A series of Non Line-Of-Sight...

Provided by: Institute of Electrical and Electronics Engineers

Whitepapers

The Sign-Definiteness Lemma and Its Applications to Robust Transceiver Optimization for Multiuser MIMO Systems

March 21, 2013 12:00am PDT

The authors formally generalize the sign-definiteness lemma to the case of complex-valued matrices and multiple norm-bounded uncertainties. This lemma has found many applications in the study of...

Provided by: Institute of Electrical & Electronic Engineers

Whitepapers

Multi-Group Multicast Beamforming in Cognitive Radio Networks Via Rank-Two Transmit Beamformed Alamouti Space-Time Coding

March 15, 2013 12:00am PDT

In this paper, the authors consider transmit design in Multiple-Input Single-Output (MISO) Multi-group Multicast (MM) Cognitive Radio (CR) systems. Previously, Semi-Definite Relaxation (SDR)-based...

Provided by: Chinese University of Hong Kong

Whitepapers

An Empirical Study of the Use of Frankl-Weyuker Data Flow Testing Criteria to Test BPEL Web Services

March 12, 2013 12:00am PDT

Programs using Service-Oriented Architecture (SOA) often feature ultra-late binding among components. These components have well-defined interfaces and are known as web services. Messages between...

Provided by: Institute of Electrical and Electronics Engineers

Whitepapers

Optimized Transmission With Improper Gaussian Signaling in the K-User MISO Interference Channel

March 12, 2013 12:00am PDT

This paper studies the achievable rate region of the K-user Gaussian Multiple-Input Single-Output Interference Channel (MISO-IC) with the interference treated as noise, when improper or circularly...

Provided by: Institute of Electrical & Electronic Engineers

Whitepapers

Spectral Efficiency Analysis for MIMO Beamforming Using Adaptive Modulation

March 10, 2013 12:00am PST

In this paper, the authors describe the analysis of Multiple Input Multiple Output (MIMO) beamforming with adaptive modulation using spectral efficiency as a figure of merit in multipath fading...

Provided by: Journal of Theoretical and Applied Information Technology