frequency
RSS frequencyA Combined Timing and Frequency Synchronization and Channel Estimation for OFDM
White Paper This paper addresses training signal based combined timing and frequency synchronization and channel estimation for OFDM systems. At the first stage, coarse timing and frequency offset estimates are... [13 Apr 2007]
BER Performance of OFDM System in Frequency-Selective Rician Fading With Diversity Reception
White Paper This paper theoretically studies the Bit Error Rate (BER) performance of OFDM systems with MDPSK modulation for subchannels in frequency-selective flat Rician fading and Additive White Gaussian Noise (AWGN). [18 Apr 2007]
Maximum-Likelihood Carrier Frequency Offset Estimation for OFDM Systems in Fading Channels
White Paper Carrier Frequency Offset (CFO) is a major contributor to the inter-carrier - interference in OFDM systems. This paper presents two maximum-likelihood CFO estimation schemes, one in frequency domain and... [13 Apr 2007]
Beyond Product Codes: New Opportunities for Radio Frequency Identification Technology - The Market Possibilities Opened Up by Low-Cost, Customizable RFID Tags
White Paper Radio Frequency Identification (RFID) technology has achieved widespread, mass-market success in high-volume Electronic Product Code (EPC) and logistics applications, as well as considerable success in areas like smart... [14 Apr 2009]
Radio Frequency Identification (RFID) as a Fixed Asset Management Solution
White Paper Radio Frequency IDentification (RFID) is an emerging technology with many successful applications including animal tagging, security access, retail loss prevention, automated toll collection and warehouse management. [10 May 2006]
Capturing High-Frequency Phenomena Using a Bandwidth-Limited Sensor Network
White Paper Small-form-factor, low-power wireless sensors-motes-are convenient to deploy, but lack the bandwidth to capture and transmit raw high-frequency data, such as human voices or neural signals, in real time. [19 Sep 2008]
Stationarity Testing in High-Frequency Seasonal Time Series
White Paper Tests for stochastic seasonality, called seasonal unit root tests, have been developed for certain common seasonal periods, like 12 (monthly data) 4 and 2, but until now have not been available for high frequency (like... [29 May 2009]
Understanding Radio Frequency Identification (RFID) and Its Impact on the Supply Chain
White Paper Department of Defense, Radio-Frequency IDentification (RFID) is gaining significant momentum as a technology solution in the supply chain. Fueled by initiatives from Wal-Mart and the U.S. Despite the considerable promise... [03 Sep 2007]
Ofcom auction: High-frequency spectrum to highest bidders
News Telecoms regulator Ofcom is to auction four bands of high-frequency spectrum which could be used for wireless broadband services. Wireless from A to Z Click on the links below to find out more… A is for Antivirus [05 Dec 2007]
Selection Criteria for Implementing Optimum WIMAX Frequency Spectrum
White Paper This paper is about a work that was carried out by the authors in an attempt to identify technologically robust and economically viable solution for commercial implementation and installation of WIMAX optimal frequency... [15 Apr 2009]
WiMAX Relay Networks: Opportunistic Scheduling to Exploit Multiuser Diversity and Frequency Selectivity
White Paper The paper solves the problem of MAC scheduling in such networks so as to serve the mobiles in a fair manner while exploiting the multiuser diversity, as well as the frequency selectivity of the wireless channel. [15 Apr 2009]
Radio-Frequency Identification (RFID): Drivers, Challenges and Public Policy Considerations
White Paper Radio Frequency IDentification (RFID) is one of several automatic identification sensor-based technologies consisting of three key elements: RFID tags; RFID readers (transceivers); and a data collection, distribution,... [10 May 2006]
A Reduced Complexity, Improved Frequency Offset Estimation for OFDM-Based WLANs
White Paper This paper presents a reduced complexity frequency offset estimation method as a modification to the nonlinear least square (NLS) method. The complexity reduction is achieved by utilizing the Chirp-Z transform. [13 Apr 2007]
Optimal Training Signals for MIMO OFDM Channel Estimation in the Presence of Frequency Offset and Phase Noise
White Paper The authors develop robust Mean-Square Error (MSE)-optimal training signal designs for multiple-input multiple-output orthogonal frequency-division multiplexing channel estimation with frequency offset... [13 Apr 2007]
Estimation of Frequency Selectivity for OFDM Based New Generation Wireless Communication Systems
White Paper In this paper, estimation of both global (long term) and local (instantaneous) frequency selectivity and rms delay spread of wireless communication channel are investigated. A practical algorithm for averaged channel... [13 Apr 2007]
