Wireless Personal Communications

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Diversity Combining and Equalization with TCM for Wireless Communications
Wireless Personal Communications - Tập 20 - Trang 41-60 - 2002
Yue Chen, K.B. Letaief, Justin C.-I. Chuang
This paper presents an equalization structure in which antennadiversity, adaptive decision feedback equalization (DFE), interleavingand trellis-coded modulation (TCM) can be effectively combined to combatboth ISI and cochannel interference in cellular mobile radioenvironments. The feedback filter of the DFE can use either tentative orfinal decision symbols of the TCM Viterbi decoding to cancel tai...... hiện toàn bộ
Load Balanced Congestion Adaptive Routing for Randomly Distributed Mobile Adhoc Networks
Wireless Personal Communications - Tập 77 - Trang 2723-2733 - 2014
Geetam Singh Tomar, Laxmi Shrivastava, Sarita Singh Bhadauria
In mobile ad hoc networks, congestion occurs due to limited sources of the network, which leads to packet losses, bandwidth degradation and wastes time and energy on congestion recovery. Various techniques have been developed in attempt to minimize congestion in uniformly distributed networks. In this paper, a load balanced congestion adaptive routing algorithm has been proposed for randomly distr...... hiện toàn bộ
Particle Filtering for Joint Symbol Detection, Frequency Offset and Channel Estimation in Time-Varying MIMO Channels with Multiple Frequency Offsets
Wireless Personal Communications - Tập 96 - Trang 1277-1298 - 2017
Yihua Yu
We develop three methods for the joint symbol detection, frequency offset and channel estimation in time-varying multiple-input multiple-output channels with multiple frequency offsets between transmit and receive antennas. These methods are based on particle filtering. The first method utilizes the posterior proposal distribution (PD) to generate particles, which is optimal PD because it minimize...... hiện toàn bộ
Blind Principles Based Interference and Noise Reduction Schemes for OFDM
Wireless Personal Communications - Tập 71 - Trang 1633-1647 - 2012
M. G. S. Sriyananda, J. Joutsensalo, T. Hämäläinen
One of the premier mechanisms used in extracting unobserved signals from observed mixtures in signal processing is employing a blind source separation (BSS) algorithm or technique. A prominent role in the sphere of multicarrier communication is played by orthogonal frequency division multiplexing (OFDM) techniques. A set of remedial solutions taken to mitigate deteriorative effects caused within t...... hiện toàn bộ
A Novel Clustering Protocol Based on Willow Butterfly Algorithm for Diffusing Data in Wireless Sensor Networks
Wireless Personal Communications - - 2021
Allahverdi Mamaghani, Alireza, Ebrahimi Dishabi, Mohammad Reza, Tabatabaei, Shayesteh, Abdollahi Azgomi, Mohammad
Mobile sensor networks consist of a set of mobile sensor nodes, which establish wireless communications within a specific area. In WSNs, mobile sensor nodes can sense the physical status of a given environment, process information and report them to the sink node or the base station. Due to nodes’ movements, these networks do not have a fixed infrastructure. There is no centralized controlling inf...... hiện toàn bộ
Validation of Computer Models for Evaluating the Efficacy of Cognitive Stimulation Therapy
Wireless Personal Communications - Tập 94 Số 3 - Trang 301-314 - 2017
Tuan D. Pham
DHSR: A Novel Semantic Retrieval Approach for Ubiquitous Multimedia
Wireless Personal Communications - Tập 76 - Trang 779-793 - 2013
Kehua Guo, Jianhua Ma, Guihua Duan
Semantic features are critical intelligence information for mobile ubiquitous multimedia, how to manage and retrieve the semantic information has been an important issue. In this paper, a novel semantic retrieval approach named Data Hiding based Semantic Retrieval (DHSR) for ubiquitous multimedia is proposed. This approach consists of the following features: (1) Every multimedia document has to be...... hiện toàn bộ
A Time-Frequency Well-localized Pulse for Multiple Carrier Transmission
Wireless Personal Communications - Tập 5 - Trang 1-18 - 1997
Ralf Haas, Jean-Claude Belfiore
In multicarrier transmission schemes, the essential requirement on the elementary pulse or envelope function is the orthogonality with its time-frequency shifted versions. However, the time and frequency dispersion of the mobile radio channel leads to the loss of orthogonality which produces intersymbol interference (ISI) and interchannel interference (ICI). Therefore, another requirement on the e...... hiện toàn bộ
Optimization Analysis of Cooperative Spectrum Sensing System over Generalized $$\kappa -\mu $$ and $$\eta -\mu $$ Fading Channels
Wireless Personal Communications - Tập 116 - Trang 3081-3100 - 2020
Suresh Kumar Balam, P. Siddaiah, Srinivas Nallagonda
This paper presents, optimization analysis of energy detection based cooperative spectrum sensing system (CSSS) with hard-decision combining. Several system parameters are optimized to evaluate an optimal performance theoretically over noisy and generalized fading channels. In particular, wireless environments with noise plus $$...... hiện toàn bộ
1T-DRAM Cell with Different FET Technologies for Low Power Application
Wireless Personal Communications - Tập 128 - Trang 471-486 - 2022
Durgesh Addala, Sanjeet Kumar Sinha, Mohan Chandu Gadiparthi, Sweta Chander
DRAM’s are essential for memory-based electronics devices and the usage of RAM is increasing day by day to reach the user's expectation the products are get designed based on low power and portable. The proposed DRAM cell has a separate read and write path for improvement in read and write abilities. Power dissipation is a major issue to solve this issue researchers are focusing on low power circu...... hiện toàn bộ
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