selective fading
On Channel Estimation for Analog Network Coding in a Frequency Selective Fading Channel
... Copyright © 2011 Haris Gacanin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the ...
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Reduced feedback for selective fading MIMO broadcast channels
... MIMO BC as illustrated in Figure 1 when a limited feedback bits are used to quantize the channel. For this, we start first by giving some basic preliminaries on the linear precoding over the MIMO BC in Sections 3-A and ...
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Improving Performance and Detection Schemes of Mimo-Ofdm Systems in the Presence of Phase Noise and Doubly-Selective Fading Where Channel is Both Time and Frequency Selective Offia Innocent.S, Udeh Ikemefuna James, Eke J
... MIMO-OFDM system more vulnerable to phase noise or time variations of the channel coefficients. The author has assumed perfect channel state information CSI for all numerical results so far. In practical systems, ...
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Relay selection in cooperative networks with frequency selective fading
... Most existing cooperative diversity research assumes that the fading channels have flat frequency responses. In high data-rate wireless applications, however, the coher- ence bandwidth of the channels tends to be ...
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INPULSE noise estimation in frequency selective fading channel
... OFDM Orthogonal Frequency Division Multiplexing is also known as Discrete Multi-Tone (DMT).It is a Modulation techniques widely used in both wired and wireless system such as DSL, PLC and WIMAX respectively. OFDM is ...
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An Adaptive Receiver for the Time and Frequency Selective Fading Channel
... The channel is modeled as a truncated power series [1] which represents the dispersive fading channel as a sum of three elementary flatfading channels.. The proposed receiver consists of[r] ...
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1. A robust and efficient channel estimation scheme for ofdm systems in frequency selective fading channels
... In this, a robust and efficient scheme for estimating the channel in OFDM systems over frequency selective Rayleigh fading channels was proposed. Channel estimation has been done by utilizing the optimal ...
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Implementation of Transmit Diversity Schemes
... frequency selective fading channels is performed and it is observed from the simulations results that SFBC is efficient and effective transmitter diversity technique when normalized Doppler frequency is ...
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Performance Analysis of a Synchronized Receiver over Noiseless and Fading Channels
... bring fading of the signal, in this manner there comes a delay in achieving the ...flat fading, if the delay spread is more than a symbol period called as frequency selective ...
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Spectrum - Sharing Multihop Cooperative Relaying Performance Analysis Using Cognitive Radio Networks
... ABSTRACT: Spectrum sharing networks with distributed AF relaying is used to improve the secondary rate and reduce the interference on the primary. In the asymptote of large number of relays optimal power strategy for the ...
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DATA RATE ENHANCEMENT OF GSM USING OFDM TECHNIQUE
... The powerful technique for the transmission over quasi-static frequency selective fading channel with convolution coding is Bit-Loaded ADAPTIVE- OFDM. The author develops analytical method for bit error ...
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Performance Analysis of Mimo-Wimax System Using Space Time Block Codes
... Wireless access networks like WiMAX provide an excellent opportunity for operators to participate in the rapid growth opportunities that exist in emerging markets. The mobile Worldwide Interoperability for Microwave ...
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Bit Error Rate Performance for Multicarrier Code Division Multiple Access over Generalized η-μ Fading Environment
... original datastream is spreaded using spreading code and modulate different subcarriers with each chip while for time domain, original datastream is serial-parallel conversion and spread using spreading code,then each ...
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Analysis of SOSTTC-OFDM based on Least Squares Method
... The simulated and the calculated performance of an SOSTTC-OFDM system in a quasi-static frequency selective fading channel are presented. The same parameter stated is used for the calculated and simulated ...
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Practical multiuser detection algorithms for CDMA
... Latva-aho and Lilleberg in [51] investigate Parallel interference cancellation (PIC) based channel parameter estimators for frequency selective fading channels for the uplink in code di[r] ...
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On Channel Estimation of OFDM BPSK and QPSK over Generalized Alpha Mu Fading Distribution
... frequency selective has different approach then compared with flat fading ...frequency selective fading environment has been presented in ...doubly selective channels was suggested in ...
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IJARSE, Vol. No.3, Issue No.8, August 2014 ISSN-2319-8354(E)
... This paper investigate the frequency and time recovery for the uplink of an orthogonal frequency-division multiple access (OFDMA) system. We proposed alternating methods for estimating the frequency and timing offsets of ...
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Mean Square Error of Blind Channel Estimation Using a Constant Modulus Algorithm
... In this paper, Mean Square Error (MSE) of blind channel estimation using a constant modulus algorithm in 16-subcarrier OFDM system over frequency selective fading channel has been investigated. The system ...
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Successive interference cancellation schemes for time-reversal space-time block codes
... frequency- selective fading ...doubly selective fading channels show that the proposed schemes significantly outperform the conventional minimum mean square error-(MMSE) like receiver and that ...
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Orthogonal Frequency Division Multiplexing: Issues and Applications
... frequency selective fading, then complex equalization techniques are required at the receiver for single carrier modulation ...flat fading only, though the channel gain/phase associated with the ...
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