Mimo
RSS MimoMIMO: From Theory to Reality
White Paper Driven by the even growing demand of higher data rate with the scarce spectrum resource, the theoretical breakthrough has been made and demonstrated significant increase on channel capacity (spectral efficiency) over... [15 Aug 2009]
MIMO Techniques for Mobile WiMAX Systems
White Paper It turns out that implementing a 2x2 spatial multiplexing MIMO receiver is a considerable challenge with a present state of technology. The WiMAX standard includes many different features and options to make the best use... [23 Apr 2009]
Diversity, Interference Cancellation and Spatial Multiplexing in MIMO Mobile WiMAX Systems
White Paper Multiple Input Multiple Output (MIMO) techniques are an essential part of the IEEE 802.16e - 2005 specifications, which form the basis of mobile WiMAX systems. This paper first discusses the tradeoffs between diversity,... [23 Apr 2009]
A ML Based Estimation of the Doppler Shift of MIMO WiMAX Systems
White Paper The advanced technique, Multiple Inputs Multiple Outputs (MIMO) is proposed to improve the performance of the WiMAX system. However, the frequency shift caused by the Doppler effect will result in the ICI of the WiMAX... [23 Apr 2009]
An Analysis of MIMO Techniques for Mobile WiMAX Systems
White Paper Multiple Input Multiple Output (MIMO) techniques are an essential part of the IEEE 802.16e - 2005 specifications, which form the basis of mobile WiMAX systems. This paper discusses the basic tradeoffs between diversity,... [23 Apr 2009]
Using XSIC Technology in Fixed WiMAX Networks for Improved Network Economics and User Experience
White Paper The WiMAX forum proposes two main techniques for enhancing spectral efficiency: using aggressive reuse schemes and using smart antenna techniques such as AAS (Adaptive Antenna Systems) and MIMO (Multiple Input Multiple... [23 Apr 2009]
A Full-Rate Full-Diversity 2×2 Space-Time Code for Mobile WiMAX Systems
White Paper The recently developed IEEE 802.16e specifications for broadband wireless access include three multiple-input multiple-output (MIMO) profiles employing 2×2 Space-Time Codes (STCs) and two of those are mandatory on the... [23 Apr 2009]
MIMO Channel Sounder at 3.5 GHz: Application to WiMAX System
White Paper This paper presents a MIMO (Multiple Input Multiple Output) channel sounder at 3.5 GHz developed at IETR. Different antenna arrays architectures are designed and calibrated at 3.5 GHz for high resolution... [22 Apr 2009]
A Link Adaptation Algorithm in MIMO-Based WiMAX Systems
White Paper This paper devised a novel link adaptation algorithm with dynamic threshold probing based on an extension of the previous work on a MIMO-based WiMAX systems simulation framework. In order to extend the coverage of... [22 Apr 2009]
High Efficient Mobile WiMAX With MIMO and Multihop Relay
White Paper MIMO and relay technology is currently being promoted within the IEEE to enhance performance of broadband wireless standards such as WiMAX. This paper presents a comprehensive study of MIMO mobile WiMAX... [22 Apr 2009]
Mobile WiMAX MIMO Performance Analysis: Downlink and Uplink
White Paper As an extension to the basic SISO mode, a number of 2x2 MIMO extensions are analysed. Demand for broadband services continues to grow. Conventional high-speed broadband solutions are based on wired-access technologies,... [22 Apr 2009]
An Analysis of the Benefits of Uplink MIMO in Mobile WiMAX Systems
White Paper This paper discusses the improvements that uplink MIMO brings to Mobile WiMAX network deployments and introduces a new technique based on uplink MIMO, tile switched diversity (TSD). Uplink... [22 Apr 2009]
Intel & Alvarion Demo Mobile WiMAX: Delivering True MIMO at Intel's Developer Forum
White Paper Operators demand more bandwidth out of mobile WiMAX. They require higher throughputs to support mobile TV, high volume of Voice over IP (VoIP) voice calls, online gaming, and business level file transfer rates. [22 Apr 2009]
Miniature Multiband Antennas for Hand Held WiMAX and WiFi Application
White Paper This paper presents a MIMO multi-band antenna system designed for WIMAX and WLAN applications. The antenna system includes two receive and one transmit antennas designed to cover the following frequency bands: WiMAX:... [22 Apr 2009]
Experimental Evaluation of Adaptive Modulation and Coding in MIMO WiMAX With Limited Feedback
White Paper The standard compliant AMC utilizes a 3-bit feedback for SISO and Alamouti coded MIMO transmissions. The performance evaluation is based on a measurement campaign employing the Vienna MIMO testbed. This... [15 Apr 2009]
