dispersive channels
Maximum Likelihood Sequence Detection of Multiple Antenna Systems over Dispersive Channels via Sphere Decoding
... wireless channels. When the channels are dispersive, the signal at each receive antenna is a combination of both the current and past symbols sent from all transmit anten- nas corrupted by ...
7
Multicarrier Communications Based on the Affine Fourier Transform in Doubly Dispersive Channels
... In summary, the mathematical model for generalized interference analysis of AFT-MC system taking into con- sideration all multipath and Doppler spreading e ff ects of doubly-dispersive channels is presented, ...
10
Iterative channel estimation and data detection for MIMO OFDM systems operating in time frequency dispersive channels under unknown background noise
... sive channels under unknown background noise have been ...TF dispersive channels and obtain reliable data detec- tion under unknown background noise ...
14
Turbo Coded Adaptive Modulation Versus Space Time Trellis Codes for Transmission over Dispersive Channels
... The performance of both space–time trellis and block codes was investigated by numerous researchers [30]–[34] when communicating over narrowband Rayleigh fading channels. The investigation of space–time codes was ...
11
Low-complexity LSMR equalisation of FrFT-based multicarrier systems in doubly dispersive channels
... stationary channels, it concentrates the coefficients near the ...doubly-dispersive channels, the channel matrix of a classical DFT-OFDM system is no longer diagonal and coefficients ...
6
Efficient Sequence Detection of Multicarrier Transmissions over Doubly Dispersive Channels
... We can identify two major approaches to the design of coherent communication schemes for the DD channel. In the so-called maximum-diversity linear precoding (MDLP) approach [1], linear modulation waveforms are designed ...
17
Burst by Burst Adaptive Wireless Video Telephony over Dispersive Channels
... Figure 7: Video bitrate versus channel SNR comparison for the adaptive burst-by-burst modem AQAM with a realistic one TDMA frame delay between channel estimation and mode switching for t[r] ...
5
Trellis coded modulation on time dispersive channels
... Chapter 7 Analytical Performance Bounds Preliminaries 7.2 Union Bound on Error-Event Probability 7.3 Upper Bounds on Conditional Pairwise Error Probability 7.3.1 Viterbi Bound 7.3.2 Cher[r] ...
127
System Performance of Concatenated STBC and Block Turbo Codes in Dispersive Fading Channels
... cases considered are shown in Table 2. Clearly, there is an im- provement of about 0 . 2 ∼ 3 . 6 dB. All these results confirm the validity and advantage of the BTC-based STBC-OFDM system in dispersive ...
8
Comparison of Analytic Inversion Techniques for Equalisation of Highly Frequency Selective MIMO Systems
... time-dispersive channels the frequency-domain inversion gave the best performance com- promise across the more realistic lower SNR range at a com- putational cost significantly lower than that of the MMSE ...
5
Low-complexity iterative receiver design for mobile OFDM systems
... Iterative receivers with minimum mean square error turbo equalization are computationally involved, as they require some form of matrix inversion. In this article, we propose a low complexity iterative receiver that ...
12
2-Dimensional Spread-Dispersion Rate Predictive Models For Oil Spills In Atlas Cove Jetty Water Environment
... The designated bearings and distance describing the network route essential for this work in developing stochastic Abstract: The search for the development of models to predict the dispersion rate of oil spills fate ...
12
Adaptive Space Time Spreading Assisted Wideband CDMA Systems Communicating over Dispersive Nakagami m Fading Channels
... In the context of the STS-assisted W-CDMA system, the delay spread of the wireless channels, and hence the num- ber of resolvable paths, varies slowly over a range span- ning from one to dozens of paths. The STS ...
15
Dispersive waves and caustics
... and applies to the integration over The classical stationary phase technique which a to and over by the integral Each term in this expansion is multiplied expansion.. [17,18], resulting [r] ...
15
Characterization of Dispersive Soils
... in dispersive soil that comes in contact with water behaves like a single grained particle with less electrochemical attraction and does not adhere with other soil ...
5
Voids in the Hall Effect; Excitons in HiTc
... Keywords High Temperature Superconductors, Hall Effect, Exciton, Holes, Energy Bands, Dispersive Dynamics, Dispersive Second Derivative, Negative Mass, Antiparticle Dynamics.. Introducti[r] ...
17
MgO-ZnO/carbon nanofiber nanocomposite as an adsorbent for ultrasound-assisted dispersive solid-phase microextraction of carbamazepine from wastewater prior to high-performance liquid chromatographic detection
... ultrasound-assisted dispersive solid-phase microextraction (UA-DSPME) method was developed for the preconcentration of carbamazepine (CBZ) in wastewater prior to high-performance liquid chromatography coupled with ...
12
Dispersive Study on Tsunami Propagation of The Indian Ocean Tsunami, 26 December 2004
... of dispersive terms in the WNB model equations, fourth-order accuracy of numerical scheme for time stepping and first- order spatial derivatives are used ...
6
Potential of Natural Bio Polymers In Stabilization of Soil
... It is observed that dispersive soil and pond ash mixed with various percentages of xanthan gum and guar gum are not dispersive and are more durable than ordinary bottom ash and dispersiv[r] ...
12
Dispersive liquid-liquid microextraction methods for the determination of Triazine herbicides in aqueous samples
... 2011. Dispersive liquid-liquid microextraction based on solidification of floating organic droplet followed by high-performance liquid chromatography with ultraviolet detection and liquid chromatography-tandem ...
41