[PDF] Top 20 Digital transmission: Spectrally efficient techniques

... ters, the digital transmission system models are "idea"', in that they have optimum signal passband shaping, perfect receiver synchronization and specifically defined channel impairments[r] ... See full document

... Principle of Compression: A common characteristic of most of the images is that the neighboring pixels are correlated and therefore contain redundant information. Redundancy reduction aims at removing duplication from ... See full document

... unlimited transmission bandwidth and efficient spatial diversity achieved with short carrier wavelengths and alarge area detector ...the transmission quality of an optical ...the techniques of ... See full document

... more efficient use o f communication channels by reducing the inherent redun­ dancy in speech sources to give a lower transmission ...coding techniques either try to find an optimum code allocation ... See full document

... about efficient power consumption through the technologies and techniques of Smart ...the transmission of data in a network since it is an efficient and low-cost solution for efficient ... See full document

... of digital linearization schemes (single- and two-stage linearization filters and the Kramers-Kronig scheme), a range of WDM channel spacing values (from 35 to 50 GHz) and different transmission link ... See full document

... for transmission of image through erroneous wireless channel and analyzed the performance with non-hierarchical ...two techniques namely the hierarchical modulation and orthogonal local service insertion ... See full document

... or Digital Subscriber Loop(DSL) is a type of Internet technology that have high speed transmission of digital data via the wires of a telephone ...data transmission there exists crosstalk due ... See full document

... of spectrally efficient wireless communication systems employing modulation schemes with varying amplitude of the communication signal, linearization techniques for nonlinear microwave power ... See full document

... RF transmission chain, while the second is to use digital baseband filtering techniques (which we have noted are generally considered to be advantageous in terms of flexibility, cost, design effort, ... See full document

... The ISD of an optical network can be increased by using advanced modulation formats with high cardinality and by reducing the frequency spacing between WDM channels; however both techniques are accompanied by ... See full document

... Signal superposition approach in cooperative relay networks was introduced by Larsson et al. [20], in which each user superposed their information message with other users’ message received in the previous time slots for ... See full document

... data transmission protocols for WSNs, including Cluster-Based Protocols (LEACH-like protocols), are vulnerable to a number of security ...data transmission and data aggregation depend on the CHs ... See full document

... an efficient way to lower energy consumption within a cluster, performing data aggregation and fusion in order decrease the number of transmitted messages to the ... See full document

... watermarking techniques play an important role in health data management systems to protect the confidentiality of medical data, monitoring the access and the retrieval of the data, and preserving their ...imaging ... See full document

... Many techniques of audio watermarking algorithms can be grouped into three categories[4]:patchwork in the frequency domain, echo hiding in the time domain and spread ...embedding techniques for ... See full document

... an efficient and effective method to enhance performance of the WSNs ...secure transmission of data for cluster-based WSNs (CWSNs), where the clusters are formed dynamically and ...and Efficient data ... See full document

... data transmission for CWSNs with concrete ID-based settings, which use ID information and digital signature for ...data transmission protocols are with concrete ID-based settings, which use ID ... See full document

... The carbon black diffuse reflectance and UV/vis absorbance spectra also is presented in Fig. 4 for comparison. As seen in this figure, the reflectance of carbon black was so high in comparison with as-synthesized ... See full document

... Figure-2 shows, the performance of this design was improved by a pipeline schedule and time-sharing techniques. Although the local gain that is obtained by the edge-direction weighting information, it can ... See full document