mimo
RSS mimoPhysical Layer Implementation and Evaluation of Multiple Input Multiple Output - Orthogonal Frequency Division Multiplexing (MIMO-OFDM) System
White Paper This paper introduces a physical layer implementation and some test results for the multiple input multiple output - orthogonal frequency division multiplexing (MIMO-OFDM) fast prototype system for the fourth generation mobile communication. [26 Jul 2005]
MIMO-OFDM Channel Estimation for Correlated Fading Channels
White Paper This paper presents MIMO-OFDM channel estimation for spatially correlated channels using frequency domain estimation techniques. First, the exploitation of spatial correlation on further improving the channel estimates is investigated. [07 Aug 2007]
MIMO-OFDM With Code-Division Multiplexing for V-BLAST Receivers
White Paper In this paper orthogonal frequency-division multiplexing code-division multiplexing (OFDM-CDM) is extended to multiple-input multiple-output (MIMO) systems and a detection scheme called a space-frequency unified vertical-Bell Labs layered space... [26 Jul 2005]
MIMO and Smart Antenna Techniques for 802.11a/b/g
White Paper The .11n proposals have centered on a wireless technology called MIMO (Multiple-In, Multiple-Out), and proprietary MIMO chipsets are already available in the market for experimentation. Convenience and affordability have made Wi-Fi the dominant... [26 Aug 2006]
MIMO Technology for Point-to-Point and Multi-User Wireless Communication
White Paper Technology development for Multiple Input Multiple Output (MIMO) wireless communication has undergone significant growth over the past several years. While some research questions remain unanswered related to this topic, for the most part the... [16 Feb 2006]
MIMO in 3G Cellular Systems: Challenges and Future Directions
White Paper The multidimensional MIMO channel can be exploited to increase the diversity of the system or to provide parallel spatial channels, which is known as spatial multiplexing. Diversity is generally considered lower risk, and a well-known example is... [11 Oct 2005]
The Hidden Cost of Overhead in MIMO Wireless LANs
White Paper Multiple Input Multiple Output (MIMO) communication, enabled by the presence of multiple transmit and receive antennas in the communication link, is a physical layer technology that can improve throughput in WLANs. [10 Aug 2007]
MIMO-OFDM Multiple Access With Variable Amount of Collision
White Paper This paper considers frequency-selective Multiple-Input Multiple-Output (MIMO) multiple access fading channels with perfect channel knowledge in the receiver and no channel state information in the transmitters. [28 Mar 2005]
Code Design for Non-Coherent MIMO-OFDM Systems
White Paper Recently, the use of coherent space-frequency coding in Orthogonal Frequency Division Multiplexing (OFDM)-based frequency-selective multiple-input multiple-output (MIMO) antenna fading channels has been proposed. [28 Mar 2005]
Principles of MIMO-OFDM Wireless Systems
White Paper The use of multiple antennas at both ends of a wireless link (MIMO technology) holds the potential to drastically improve the spectral efficiency and link reliability in future wireless communications systems. [28 Mar 2005]
On Multiple Accessing for Frequency-Selective MIMO Channels
White Paper This paper focuses on MIMO multiple access channels with frequency-selective fading (spatially correlated at the receiver) assuming perfect channel state information (CSI) in the multiple antenna receiver and no channel knowledge at the multiple... [28 Mar 2005]
Breaking the Barriers of Shannon's Capacity: An Overview of MIMO Wireless Systems
White Paper Appearing a few years ago in a series of information theory articles published by members of the Bell-Labs, multiple-input multiple-output (MIMO) systems have evolved quickly to both become one of the most popular topics among wireless... [28 Mar 2005]
Link-Adaptation-Enhanced Dynamic Channel Allocation for MIMO-OFDM Wireless Networks
White Paper This paper proposes a link-adaptation (LA)-based system infrastructure and develops the corresponding dynamic channel allocation (DCA) algorithm for downlink data transmissions over MIMO-OFDM wireless networks. [28 Mar 2005]
Adaptive MIMO OFDM Receivers: Implementation Impairments and Complexity Issues
White Paper MIMO OFDM communications is a promising choice for future high data rate wireless systems. However, the commercial deployment of MIMO OFDM systems faces some challenges, including those arising from front-end analog implementation impairments and... [29 Mar 2005]
Per-Antenna-Coded Schemes for MIMO OFDM
White Paper Two Per-Antenna-Coding (PAC) receiver schemes for Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) are described and compared in this paper. In MIMO, the data to transmit are multiplexed onto different antennas. [01 Nov 2004]
