Wireless Networks

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Fuzzy logic based route optimization in a multihomed mobile networks
Wireless Networks - Tập 17 - Trang 213-229 - 2010
Sulata Mitra, Sumanta Pyne
The present work is a fuzzy logic based route optimization in multihomed mobile network. The mobile routers in the mobile network use best egress determination algorithm to identify its best egress interface for each service type supported by the mobile network dynamically and send the best egress interface per service type information to a local fixed node inside the mobile network. The mobile ne...... hiện toàn bộ
Secure UAV communication against cooperative adaptive eavesdroppers
Wireless Networks - Tập 28 - Trang 1113-1128 - 2022
Jue Liu, Weiwei Yang
The flexibility of the adaptive eavesdropper (AE) who can act as a passive eavesdropper or active jammer adaptively makes the attack mode more powerful, which will bring new security threats for unmanned aerial vehicle (UAV) communications. In this paper, we investigate secure UAV communications under multiple cooperative AEs. A cooperative attack game (CAG) is proposed to get the optimal joint at...... hiện toàn bộ
Channel estimation using spatial partitioning with coalitional game theory (SPCGT) in wireless communication
Wireless Networks - Tập 27 Số 3 - Trang 1887-1899 - 2021
S. Dhanasekaran, J. Ramesh
Cross-layer enhanced time scheduling for multi-band OFDM UWB networks
Wireless Networks - Tập 16 - Trang 863-873 - 2009
Mehmet Keskinoz, Ozgur Gurbuz, Engin Masazade
Multi-band Orthogonal Frequency Division multiplexing based Ultra Wide-band (MB-OFDM UWB) technology is one of the strong alternatives for high data rate wireless personal area networks (WPANs) with low power consumption. The capacity of such systems is degraded by multi-path fading, shadowing, multi-user interference and noise. To improve system capacity under these adverse effects, in this paper...... hiện toàn bộ
Joint activity and channel estimation for asynchronous grant-Free NOMA with chaos sequence
Wireless Networks - - Trang 1-13 - 2023
Mingyi Qiu, Donghong Cai, Jing Zhao, Zhicheng Dong, Weixi Zhou
This paper considers an asynchronous grant-free non-orthogonal multiple access (NOMA) systems which can be applied in massive machine-type communications (mMTCs) and underwater IoT acoustic communication scenarios due to its high spectral efficiency and low power consumption characteristics. In particular, the system’s asynchronous reception of user signals can effectively reduce the additional ov...... hiện toàn bộ
Physical-layer air interface solutions for broadband high-speed wireless cellular systems
Wireless Networks - Tập 13 - Trang 5-26 - 2006
Ben Lu, Xiaodong Wang, Mohammad Madihian
We propose the physical-layer (PHY) air interface solutions for downlink and uplink transmissions in broadband high-speed wireless cellular systems. A system based on low-density parity-check (LDPC) coded multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) time-division multiple-accessing (TDMA) (with scheduling) is proposed for downlink transmission; and a syst...... hiện toàn bộ
Design of a compact LPF and a miniaturized Wilkinson power divider using aperiodic stubs with harmonic suppression for wireless applications
Wireless Networks - Tập 26 - Trang 1493-1501 - 2019
Saeed Roshani, Sobhan Roshani
In this paper a miniaturized low pass filter (LPF) with 2.5 GHz cut-off frequency and a novel compact, harmonics suppressed Wilkinson power divider (WPD) at 0.7 GHz is proposed. The proposed divider consists of two multi-stub LPFs and three open stubs at each port. The presented open stub at port one suppresses the second harmonic and other two open stubs at output ports, suppress the third harmon...... hiện toàn bộ
The impact of channel imperfection and multiple eavesdroppers on security of dual-signal selection in AF-relay systems
Wireless Networks - Tập 28 - Trang 1531-1540 - 2022
Donghun Lee
This paper investigates the impact of channel imperfection and multiple eavesdroppers on the secrecy performance of dual-signal selection in amplify and forward-relay systems. This paper derives the lower-bound closed-form expressions of the dual-signal selection for the secrecy outage probability. This work also derives the asymptotic secrecy outage probability expressions of the dual-signal sele...... hiện toàn bộ
ANT-colony based disjoint set assortment in wireless sensor networks
Wireless Networks - Tập 25 - Trang 5137-5150 - 2019
Muhammad Yasir Shabir, Ata Ullah, Zahid Mahmood
Wireless sensor network (WSN) consists of small sized devices containing different sensors to monitor physical, environmental and medical conditions during surveillance of fields, parking, borders and any targeted areas. Mostly WSN is deployed in harsh environments where battery can’t be changed or recharged easily, therefore, battery power should be used efficiently. Sensor nodes are randomly dep...... hiện toàn bộ
Basestation flow control for wired to wireless networks
Wireless Networks - Tập 16 Số 3 - Trang 775-791 - 2010
Saâd Biaz, Yawen Dai
Tổng số: 2,963   
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