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(17 results)-
Whitepapers
Reappearing Primary User Detection in FBMC/OQAM Cognitive Radios
September 14, 2010, 12:00am PDT
This paper investigates the problem of detecting the reappearance of a primary user signal during ongoing secondary data transmission. The high frequency containment of Filter Bank Multi-Carrier...
Provided by tampanetmedia.com
-
Whitepapers
Phase Noise Modelling and Mitigation Techniques in OFDM Communications Systems
February 28, 2009, 12:00am PST
This paper addresses the analysis and mitigation of the signal distortion caused by oscillator Phase Noise (PN) in OFDM communications systems. Two new PN mitigation techniques are proposed,...
Provided by tampanetmedia.com
-
Whitepapers
Jitter Mitigation in High-Frequency Bandpass-Sampling OFDM Radios
April 1, 2009, 12:00am PDT
This paper presents a new way to address and mitigate sampling jitter in high-frequency band-pass-sampling OFDM radio receivers. Baseband model for mapping the sampling jitter to certain type of...
Provided by tampanetmedia.com
-
Whitepapers
Sampling Jitter Estimation and Mitigation in Direct RF Sub-Sampling Receiver Architecture
September 18, 2009, 12:00am PDT
The sampling jitter is particularly problematic in systems where high-frequency signals are sampled. This paper addresses the sampling jitter estimation and cancellation task in the direct RF...
Provided by tampanetmedia.com
-
Whitepapers
Sampling Jitter Cancellation in Direct-Sampling Radio
December 18, 2009, 12:00am PST
This paper addresses the sampling jitter estimation and cancellation task in direct RF sub-sampling type radios. The proposed jitter estimation method is based on carefully injecting or...
Provided by tampanetmedia.com
-
Whitepapers
Analysis and Mitigation of Phase Noise and Sampling Jitter in OFDM Radio Receivers
February 15, 2012, 12:00am PST
This paper addresses the analysis and Digital Signal Processing (DSP)-based mitigation of phase noise and sampling clock jitter in Orthogonal Frequency Division Multiplexing (OFDM) radios. In the...
Provided by tampanetmedia.com
-
Whitepapers
On OFDM Link Performance Under Receiver Phase Noise With Arbitrary Spectral Shape
December 30, 2010, 12:00am PST
This paper addresses the signal distortion caused by receiver Phase Noise (PN) on OFDM waveforms in direct conversion radio receivers. A closed-form solution for the observed...
Provided by tampanetmedia.com
-
Whitepapers
Sampling Jitter in Charge Sampling Radio
January 27, 2012, 12:00am PST
This paper addresses some implementation challenges in the potentially very energy-efficient charge sampling radios. Alternative ways to implement charge sampler in charge sampling radio are...
Provided by tampanetmedia.com
-
Whitepapers
Modelling and Practical Iterative Mitigation of Phase Noise in SC-FDMA
November 2, 2012, 12:00am PDT
This paper addresses the modeling, and practical estimation and mitigation of phase noise in Single-Carrier Frequency Division Multiple Access (SC-FDMA) systems. Special emphasis is kept on 3GPP...
Provided by tampanetmedia.com
-
Whitepapers
Flexible Adjacent Channel Interference and Phase Noise Suppression in Energy-Efficient OFDMA Receivers
August 13, 2012, 12:00am PDT
This paper addresses the problem of phase noise mitigation in OFDMA-based radio link in a case where also adjacent channels are down-converted and therefore affected by the phase noise. The paper...
Provided by tampanetmedia.com
-
Whitepapers
Design Considerations for Direct RF Sampling Receiver in GNSS Environment
January 17, 2008, 12:00am PST
In this paper, the applicability of advanced direct RF sampling receiver architecture is studied in the GNSS environment. The architecture is based on sampling the signal directly at RF, which in...
Provided by tampanetmedia.com
-
Whitepapers
Efficient Jitter Model for High-Frequency Bandpass Sampling
July 20, 2007, 12:00am PDT
In this paper, the applicability of a simple I/Q-carrier jitter model is studied and simulated in high-frequency band-pass sampling context. In the model, sampling jitter is applied only to the...
Provided by tampanetmedia.com
-
Whitepapers
Optimized FFT and Filter Bank Based Spectrum Sensing for Bluetooth Signal
March 12, 2012, 12:00am PDT
Wireless Local Area Networks (WLAN) and Wireless Personal Area Networks (WPAN) such as the Bluetooth are designed to operate in 2.4 GHz ISM band. Since both IEEE 802.15 based Bluetooth and IEEE...
Provided by tampanetmedia.com
-
Whitepapers
An Efficient Multiplication-Free and Look-Up Table-Free Adaptive Binary Arithmetic Coder
April 25, 2012, 12:00am PDT
In this paper, the authors propose a novel efficient adaptive binary arithmetic coder which is multiplication-free and requires no look-up tables. To achieve this, they combine the probability...
Provided by tampanetmedia.com
-
Whitepapers
Energy Efficient Operation of 3GPP LTE-Advanced and IEEE 802.16m Downlink Channel
November 11, 2011, 12:00am PST
Currently, prominent 4G wireless networking technologies receive increasing attention from the research community. Represented by 3GPP LTE and IEEE 802.16 cellular standards, they support both...
Provided by tampanetmedia.com
-
Whitepapers
Practical Traffic Generation Model for Wireless Networks
January 1, 2013, 12:00am PST
In this paper, the authors address traffic engineering problems for wireless communications by proposing a practical technique to construct a DBMAP-based model equivalent to an IPP-based model. On...
Provided by tampanetmedia.com
-
Whitepapers
Comparative Analysis of Sleep Mode Control Algorithms for Contemporary Metropolitan Area Wireless Networks
June 2, 2010, 12:00am PDT
Recently, broadband wireless networks, such as IEEE 802.16 and LTE, receive more and more attention from the researchers. Increasing the energy efficiency of the end clients in these systems is an...
Provided by tampanetmedia.com
-
Whitepapers
Comparative Analysis of Sleep Mode Control Algorithms for Contemporary Metropolitan Area Wireless Networks
June 2, 2010, 12:00am PDT
Recently, broadband wireless networks, such as IEEE 802.16 and LTE, receive more and more attention from the researchers. Increasing the energy efficiency of the end clients in these systems is an...
Provided by tampanetmedia.com
-
Whitepapers
Practical Traffic Generation Model for Wireless Networks
January 1, 2013, 12:00am PST
In this paper, the authors address traffic engineering problems for wireless communications by proposing a practical technique to construct a DBMAP-based model equivalent to an IPP-based model. On...
Provided by tampanetmedia.com
-
Whitepapers
Energy Efficient Operation of 3GPP LTE-Advanced and IEEE 802.16m Downlink Channel
November 11, 2011, 12:00am PST
Currently, prominent 4G wireless networking technologies receive increasing attention from the research community. Represented by 3GPP LTE and IEEE 802.16 cellular standards, they support both...
Provided by tampanetmedia.com
-
Whitepapers
An Efficient Multiplication-Free and Look-Up Table-Free Adaptive Binary Arithmetic Coder
April 25, 2012, 12:00am PDT
In this paper, the authors propose a novel efficient adaptive binary arithmetic coder which is multiplication-free and requires no look-up tables. To achieve this, they combine the probability...
Provided by tampanetmedia.com
-
Whitepapers
Optimized FFT and Filter Bank Based Spectrum Sensing for Bluetooth Signal
March 12, 2012, 12:00am PDT
Wireless Local Area Networks (WLAN) and Wireless Personal Area Networks (WPAN) such as the Bluetooth are designed to operate in 2.4 GHz ISM band. Since both IEEE 802.15 based Bluetooth and IEEE...
Provided by tampanetmedia.com
-
Whitepapers
Efficient Jitter Model for High-Frequency Bandpass Sampling
July 20, 2007, 12:00am PDT
In this paper, the applicability of a simple I/Q-carrier jitter model is studied and simulated in high-frequency band-pass sampling context. In the model, sampling jitter is applied only to the...
Provided by tampanetmedia.com
-
Whitepapers
Design Considerations for Direct RF Sampling Receiver in GNSS Environment
January 17, 2008, 12:00am PST
In this paper, the applicability of advanced direct RF sampling receiver architecture is studied in the GNSS environment. The architecture is based on sampling the signal directly at RF, which in...
Provided by tampanetmedia.com
-
Whitepapers
Flexible Adjacent Channel Interference and Phase Noise Suppression in Energy-Efficient OFDMA Receivers
August 13, 2012, 12:00am PDT
This paper addresses the problem of phase noise mitigation in OFDMA-based radio link in a case where also adjacent channels are down-converted and therefore affected by the phase noise. The paper...
Provided by tampanetmedia.com
-
Whitepapers
Modelling and Practical Iterative Mitigation of Phase Noise in SC-FDMA
November 2, 2012, 12:00am PDT
This paper addresses the modeling, and practical estimation and mitigation of phase noise in Single-Carrier Frequency Division Multiple Access (SC-FDMA) systems. Special emphasis is kept on 3GPP...
Provided by tampanetmedia.com
-
Whitepapers
Sampling Jitter in Charge Sampling Radio
January 27, 2012, 12:00am PST
This paper addresses some implementation challenges in the potentially very energy-efficient charge sampling radios. Alternative ways to implement charge sampler in charge sampling radio are...
Provided by tampanetmedia.com
-
Whitepapers
On OFDM Link Performance Under Receiver Phase Noise With Arbitrary Spectral Shape
December 30, 2010, 12:00am PST
This paper addresses the signal distortion caused by receiver Phase Noise (PN) on OFDM waveforms in direct conversion radio receivers. A closed-form solution for the observed...
Provided by tampanetmedia.com
-
Whitepapers
Analysis and Mitigation of Phase Noise and Sampling Jitter in OFDM Radio Receivers
February 15, 2012, 12:00am PST
This paper addresses the analysis and Digital Signal Processing (DSP)-based mitigation of phase noise and sampling clock jitter in Orthogonal Frequency Division Multiplexing (OFDM) radios. In the...
Provided by tampanetmedia.com
-
Whitepapers
Sampling Jitter Cancellation in Direct-Sampling Radio
December 18, 2009, 12:00am PST
This paper addresses the sampling jitter estimation and cancellation task in direct RF sub-sampling type radios. The proposed jitter estimation method is based on carefully injecting or...
Provided by tampanetmedia.com
-
Whitepapers
Sampling Jitter Estimation and Mitigation in Direct RF Sub-Sampling Receiver Architecture
September 18, 2009, 12:00am PDT
The sampling jitter is particularly problematic in systems where high-frequency signals are sampled. This paper addresses the sampling jitter estimation and cancellation task in the direct RF...
Provided by tampanetmedia.com
-
Whitepapers
Jitter Mitigation in High-Frequency Bandpass-Sampling OFDM Radios
April 1, 2009, 12:00am PDT
This paper presents a new way to address and mitigate sampling jitter in high-frequency band-pass-sampling OFDM radio receivers. Baseband model for mapping the sampling jitter to certain type of...
Provided by tampanetmedia.com
-
Whitepapers
Phase Noise Modelling and Mitigation Techniques in OFDM Communications Systems
February 28, 2009, 12:00am PST
This paper addresses the analysis and mitigation of the signal distortion caused by oscillator Phase Noise (PN) in OFDM communications systems. Two new PN mitigation techniques are proposed,...
Provided by tampanetmedia.com
-
Whitepapers
Reappearing Primary User Detection in FBMC/OQAM Cognitive Radios
September 14, 2010, 12:00am PDT
This paper investigates the problem of detecting the reappearance of a primary user signal during ongoing secondary data transmission. The high frequency containment of Filter Bank Multi-Carrier...
Provided by tampanetmedia.com
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