channel fading s
RSS channel fading sLinear Constellation Precoding for OFDM With Maximum Multipath Diversity and Coding Gains
White Paper Orthogonal frequency-division multiplexing (OFDM) converts a frequency-selective fading channel into parallel flat-fading subchannels, thereby simplifying channel equalization and symbol decoding. This paper introduces a linear constellation... [10 Apr 2008]
High Efficiency Wireless LAN for Multimedia Home Networks
White Paper Results of channel measurements with respect to fading effects are presented. This paper describes the problems of wireless LAN usage in the user's home with focus on media transmission. The resulting link data rates are analyzed. [05 Dec 2007]
Multilevel Codes for OFDM-Like Modulation Over Underspread Fading Channels
White Paper This paper studies the problem of modulation and coding for doubly dispersive, i.e.time and frequency selective fading channels. For coherent reception with maximum likelihood decoding, it derives the code design criteria as a function of the... [18 Apr 2007]
Performance Analysis of Diversity Combining Method for OFDM Blind Carrier Synchronization
White Paper Orthogonal Frequency Division Multiplexing (OFDM) communications transform frequency selective channels into multiple low rate subchannels robust against frequency selective fading. It's necessary to reduce the frequency offset to a small fraction... [13 Apr 2007]
Bluetooth: Channel Coding Considerations
White Paper The goal of this paper is to analyze the effects of this incorrect assumption on BT's performance over a frequency-flat Rayleigh block fading channel. It has been found that several papers that address the performance of Bluetooth (BT) over a... [14 Sep 2005]
Hopping Pilots for Estimation of Frequency-Offset and Multiantenna Channels in MIMO-OFDM
White Paper In this paper a pilot-symbol-assisted modulation for carrier frequency offset (CFO) and channel estimation in orthogonal frequency-division multiplexing transmissions over multi-input multi-output frequency-selective fading channels is designed. [26 Jul 2005]
SDM-COFDM Technologies for Broadband Wireless Access Over 100 Mbit/s
White Paper ª2 antennas can double the transmission bit rate to more than 100 Mbit/s per 18 MHz by using 64QAM with a coding rate of 3/4 in frequency selective fading environments. The proposed scheme reduces inter-channel interference with a simple feed... [26 Oct 2004]
Space-Frequency Coded MIMO-OFDM With Variable Multiplexing-Diversity Tradeoff
White Paper Space-frequency coded Orthogonal Frequency Division Multiplexing (OFDM) is capable of realizing both spatial and frequency-diversity gains in multipath multiple-input multiple-output (MIMO) fading channels. [26 Oct 2004]
High-Throughput, High-Performance OFDM Via Pseudo-Orthogonal Carrier Interferometry Coding
White Paper OFDM (Orthogonal Frequency Division Multiplexing) is susceptible to poor probability of error performance in fading channels. To enhance OFDM's performance, many architectures utilize channel coding. The addition of coding, adds both redundancy and... [16 Oct 2004]
A Novel Polarization Smart Antenna
White Paper Mobile wireless channels are time varying mainly due to the MS motion, exhibiting shadowing, fading, Doppler shift, and polarization mismatch that determine the communications link performance. The Paper presented a polarization field trial for a... [24 Feb 2004]
