Wireless Personal Communications

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Capacity of wireless dynamic TDMA and media access control for packetized voice/data integration
Wireless Personal Communications - Tập 1 - Trang 313-319 - 1994
Byung Chul Kim, Chong Kwan Un
We obtain the capacity of wireless dynamic TDMA for packetized speech and investigate its stability characteristics depending upon the ratio between request slots and message slots. We analyze this system based on an imbedded Markov chain approximation and validate its performance by simulation. We also propose a new media access control for voice/data integration and investigate its performance b...... hiện toàn bộ
Resource Allocation in Downlink OFDM Wireless Systems with User Rate Allowed Regions
Wireless Personal Communications - - 2014
Shanzhi Chen, Zhanyang Ren, Bo Hu, Weiguo Ma
In this paper, a novel adaptive resource allocation in downlink orthogonal frequency division multiplexing wireless system is investigated. Different from the conventional algorithms, user rate allowed regions are considered. That is, not only the user minimum rate requirements are to be satisfied, but also the maximum rate limitations are introduced to make resource allocation more reasonable. Gi...... hiện toàn bộ
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
Tapered Antenna Array with Non-identical Triangular MSA Elements for FSLL Reduction
Wireless Personal Communications - Tập 106 - Trang 1339-1352 - 2019
Bharti Singh, Nisha Sarwade, K. P. Ray, Amit A. Deshmukh
Reduced interference from nearby communication systems is an essential need in all generations of wireless communication systems. In this paper, interference is reduced by reducing the first side lobe level (FSLL) by using the concept of tapering realized with non-identical triangular elements. Resonance frequency of an Equilateral triangular microstrip antenna depends on its patch height. This pr...... hiện toàn bộ
Correction to: Elliptic Curve Cryptography Based Authentication Protocol Enabled with Optimized Neural Network Based DoS Mitigation
Wireless Personal Communications - Tập 124 - Trang 27-27 - 2022
Sobini X. Pushpa, S. Kanaga Suba Raja
Techniques, Answers, and Real-World UAV Implementations for Precision Farming
Wireless Personal Communications - Tập 131 - Trang 2715-2746 - 2023
Ashish Srivastava, Jay Prakash
In adopting state-of-the-art technologies, a domain known in time is Agriculture for fertility optimization, expense saving, assistance, and environmental safeguard. In this aspect, deploying UAVs remains a modern example in the Agriculture sector, encompassing various possibilities at ease. Concerning innovations, UAV (drone) invention remains the standard talked-about technology. UAV’s broader v...... hiện toàn bộ
Giao tiếp và phân tích dữ liệu an toàn từ đầu đến cuối trong ứng dụng tích hợp IoT sử dụng nền tảng IBM Watson IoT Dịch bởi AI
Wireless Personal Communications - Tập 120 - Trang 153-168 - 2021
Mohammed Imtyaz Ahmed, G. Kannan
Công nghệ Internet of Things (IoT) đã trở thành một cuộc cách mạng liên ngành trong thời đại hiện nay. Nó có khả năng ảnh hưởng đáng kể đến cuộc sống con người khi được sử dụng trong các lĩnh vực khác nhau. IoT có vô số ứng dụng như giao thông thông minh, chăm sóc sức khỏe thông minh và thành phố thông minh, để kể ra một vài ví dụ. Khi IoT có khả năng kết hợp mượt mà giữa các đối tượng vật lý và đ...... hiện toàn bộ
#IoT #bảo mật #giao tiếp an toàn #mã hóa dữ liệu #phân tích dữ liệu
Sequence Statistical Code Based Data Compression Algorithm for Wireless Sensor Network
Wireless Personal Communications - Tập 106 - Trang 971-985 - 2019
S. Jancy, C. Jayakumar
Sensors play an integral part in the technologically advanced real world. Wireless sensors are which have powered by batteries with limited capacity. Hence energy efficiency is one of the major issues with wireless sensors. Many techniques have been proposed in order to improve sensor efficiency. This paper discusses to improve energy efficiency of sensor through data compression. Sequence statist...... hiện toàn bộ
Cognitive Mesh Network Under Interference from Primary User
Wireless Personal Communications - Tập 45 - Trang 385-401 - 2008
Rocco Di Taranto, Hiroyuki Yomo, Petar Popovski, Kentaro Nishimori, Ramjee Prasad
In a commonly accepted usage scenario, a cognitive radio appears as a secondary user of certain spectrum which is licensed to another, primary system. A prominent example of cognitive system is a mesh network operating under the interference from primary system. For such a scenario, we propose techniques for efficient secondary usage of spectrum, which rely on the adaptive array antenna in order t...... hiện toàn bộ
Anonymous Lightweight Proxy Based Key Agreement for IoT (ALPKA)
Wireless Personal Communications - Tập 106 Số 2 - Trang 345-364 - 2019
An Braeken, Madhusanka Liyanage, Anca Delia Jurcut
Tổng số: 8,226   
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