• No results found

Time-varying fading channel

Time-Varying Frequency Fading Channel Tracking In OFDM-PLNC System, Using Kalman Filter

Time-Varying Frequency Fading Channel Tracking In OFDM-PLNC System, Using Kalman Filter

... the time-varying channel in an OFDM-PLNC system, where, the channel with both frequency and time selectivity are ...communication channel, we offer a method for the ...

10

An Adaptive Channel Estimation Algorithm Using Time Frequency Polynomial Model for OFDM with Fading Multipath Channels

An Adaptive Channel Estimation Algorithm Using Time Frequency Polynomial Model for OFDM with Fading Multipath Channels

... The channel estimation algorithms should exploit such correla- tion to improve the accuracy of the ...the channel pa- rameters in frequency domain while Mignone and Morello [5] used the correlation in ...

13

Adaptive Switching between Space Time and Space Frequency Block Coded OFDM Systems in Rayleigh Fading Channel

Adaptive Switching between Space Time and Space Frequency Block Coded OFDM Systems in Rayleigh Fading Channel

... over time frequency selective channels. The as- sumption of constant channel response during the trans- mission becomes critical in STBC-OFDM over time varying ...the channel gain can ...

8

Stochastic Power Control for Time-Varying Long-Term Fading Wireless Networks

Stochastic Power Control for Time-Varying Long-Term Fading Wireless Networks

... new time-varying (TV) long-term fading (LTF) channel model which captures both the space and time variations of wireless systems is ...wireless channel as a dynamical system, ...

13

Time varying on body wireless channel model during walking

Time varying on body wireless channel model during walking

... dynamic channel model for on-body wireless communication during walking is ...the time-varying shadowing ...signal fading caused by angular variations of the transmitting and receiving antenna ...

11

Estimation of Fading Statistics of Nakagami Channel with Weibull Distributed Tolerable Outage Time

Estimation of Fading Statistics of Nakagami Channel with Weibull Distributed Tolerable Outage Time

... radio channel plays an important role in designing a reliable wireless communication sys- ...estimate fading parameters of wireless channel with omission of certain outage durations which are consid- ...

6

On Channel Estimation for Analog Network Coding in a Frequency Selective Fading Channel

On Channel Estimation for Analog Network Coding in a Frequency Selective Fading Channel

... the time-varying nature of the direct link is taken into consideration, and the outage regions of various PNC schemes are theoretically analyzed, and, then, the best combined strategies are derived in terms ...

12

Analysis of Rate One Quasi Orthogonal Space Time Block Coding over Rayleigh Fading Channel

Analysis of Rate One Quasi Orthogonal Space Time Block Coding over Rayleigh Fading Channel

... with time and if this fluctuation is rapid over a short period of time, then it is known as small-scale ...statistical time varying nature of the received fading ...The fading ...

7

On capacity of fading channels with no channel state information

On capacity of fading channels with no channel state information

... highly time varying channels. Under such circumstances, the channel variations become fast and the receiver is unable to track the channel during the predefined block ...the channel ...

20

Performance of compressive sensing 
		algorithms over time varying frequency selective channel

Performance of compressive sensing algorithms over time varying frequency selective channel

... the channel variation over time, if they are appropriately placed over time and ...or time invariant channels, this type of pilot allocation is ...fading channel. In Lattice ...

6

Antenna Controller for Low-Latency and High Reliability Robotic Communications over Time-Varying Fading Channels

Antenna Controller for Low-Latency and High Reliability Robotic Communications over Time-Varying Fading Channels

... In this paper we have proposed a new closed-loop antenna controller system for MRs which is capable of significantly improving the wireless communication channel without the necessity of altering the ...

6

An Implementation of Nonlinear Multiuser Detection in Rayleigh Fading Channel

An Implementation of Nonlinear Multiuser Detection in Rayleigh Fading Channel

... with time, but so too do the received signature waveforms, due to channel ...statistical time-varying natures of the received envelope of a flat-fading ...

9

Channel Characteristics and Performance of MIMO E SDM Systems in an Indoor Time Varying Fading Environment

Channel Characteristics and Performance of MIMO E SDM Systems in an Indoor Time Varying Fading Environment

... In time-varying wireless communications, Doppler spec- trum is a useful measure to evaluate the mobility of terminals ...SISO channel was investigated where the base and user were both stationary, ...

14

Timing and Integer Frequency Offset Estimation for DLMT System over Time Varying Rayleigh Fading Channel

Timing and Integer Frequency Offset Estimation for DLMT System over Time Varying Rayleigh Fading Channel

... The work in [12] in particular provides a nice overview of methods and uses for computing the cross-ambiguity function (CAF). The works in [13-15] use the CAF to perform partial or full OFDM synchronization. The authors ...

8

A Limited Feedback Algorithm Sacred from Feedback Error for Slowly Time varying Channel

A Limited Feedback Algorithm Sacred from Feedback Error for Slowly Time varying Channel

... instantaneous channel realizations. This algorithm is effective in block fading channel model[2, ...the channel temporal correlation can be utilized fully, it is possible to reduce the amount ...

6

Estimation of Critical Performance and Optimization of Scalable Joint Source/Channel Coder (SJSCC) For Time Varying Channels

Estimation of Critical Performance and Optimization of Scalable Joint Source/Channel Coder (SJSCC) For Time Varying Channels

... where channel is inherently time varying and subject to Rayleigh fading ...over time varying channels with two Channel State Information’s (CSI) and three bit rates ( 1, ½ ...

5

Index Terms: MANET, Fading Channel, Rayleigh Fading, data Rate, speed of nodes

Index Terms: MANET, Fading Channel, Rayleigh Fading, data Rate, speed of nodes

... It is an autonomous system of mobile nodes which share a single wireless channel to communicate with each other. In wireless ad hoc networks, especially in mobile environments, channel conditions are ...

7

Title: Improved Space Time Block Coding Diversity Technique for Rayleigh Fading Channel in Wireless Systems

Title: Improved Space Time Block Coding Diversity Technique for Rayleigh Fading Channel in Wireless Systems

... Abstract— Numerous diversity techniques are used to minimize BER in wireless systems. But, the most effective diversity technique is Space Diversity. Space diversity is utilization of Multiple antenna systems (Multiple ...

10

INPULSE noise estimation in frequency selective fading channel

INPULSE noise estimation in frequency selective fading channel

... In this process we used unused/null frequencies in order to obtain a signal-free subspace using this the impulse noise can be projected. The impulse noise is sparse in the time domain, we can estimate the ...

6

Comparison of LMS and FDAF Algorithms in Equalization of Fading Channel

Comparison of LMS and FDAF Algorithms in Equalization of Fading Channel

... multipath fading for 16-QAM and QPSK modulated wave and the results are shown using constellation diagram and bit error rate ...process time, mean BER, variance of BER and circuit ...

6

Show all 10000 documents...

Related subjects