Results 61 to 70 of about 68,492,323 (167)

Closed‐Form Approximation of Average Error Probability With Finite‐Blocklength Coding Over Lognormal Wireless Communication Links

IET Communications, Volume 20, Issue 1, January/December 2026.
This work extends the Polyanskiy‐Poor‐Verdu (PPV) framework to lognormal wireless links. Specifically, the paper derives a closed‐form approximation for the average error probability under lognormal distribution, effectively generalizing the PPV analysis beyond the additive white Gaussian noise assumption.
Peng Du, Yuan Zhang
wiley   +1 more source

Unified Downlink‐Uplink Waveform Optimization For MIMO‐OFDM Integrated Sensing and Communication

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper presents a unified waveform allocation framework for downlink and uplink MIMO‐OFDM integrated sensing and communication (ISAC) systems in 6G networks. We develop five optimization schemes, including optimal‐for‐communication, optimal‐for‐sensing, and MMSE‐based joint allocation, with closed‐form expressions for spectral efficiency, sensing ...
Gujjula Ramya, Puli Kishore Kumar, Santhosh Kumar Dhatrika   +2 more
wiley   +1 more source

Space-Time Block Coded Adaptive Modulation Aided OFDM

, 2001
Space-time block codes provide substantial diversity advantages for multiple transmit antenna systems at a low decoding complexity. In this contribution, we investigate the achievable diversity advantages in the context of adaptive modulation aided turbo
Liew, T.H., Hanzo, L.
core   +1 more source

OFDM transmission scheme with subcarrier supply index modulation

Tongxin xuebao, 2023
To address the drawback that subcarrier activation pattern (SAP) of the orthogonal frequency division multiplexing with index modulation (OFDM-IM) cannot match the binary numbers which affects the system performance, the orthogonal frequency division ...
Yi GUO, Yiqing WANG, Yuanyuan FAN, Gang LIU   +3 more
doaj   +2 more sources

Secret Key Extraction Using Stable Channel Impulse Response in OFDM Wireless Networks

IET Communications, Volume 20, Issue 1, January/December 2026.
The process of converting a complex impulse response (CIR) highest peak into a binary sequence is called ‘quantisation’. By quantising the CIR highest peaks, Alice and Bob will generate the secret key bit sequences KA and KB, respectively. The number of CIR highest peaks is infinite, and these highest peaks can be easily selected from the set of CIRs ...
Dinh Van Linh, Vu Van Yem, Hoang Thi Phuong Thao   +2 more
wiley   +1 more source

Enhancing Data Transmission Security and Reliability of OFDM-IM for 5G Wireless Communication Systems

Journal of Telecommunications and Information Technology
Thanks to its improved spectral efficiency and immunity to frequency selective fading, OFDM with index modulation (OFDM-IM) has become a perspective option.
Asaad H. Sahar, Aqiel N. Almamori, Muhannad Y. Muhsin   +2 more
doaj   +1 more source

Clock Asynchronism Calibration in Bistatic Sensing Systems via Expert‐Guided Cross‐Attention Mechanism

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper addresses the issue of sampling point offset and ranging bias caused by frequency discrepancies between the crystal oscillators of transceivers in bistatic sensing systems, proposing an expert‐guided cross‐attention network. ABSTRACT With the rapid evolution of wireless communication networks, it has become increasingly desirable for base ...
Haitao Zhao, Zhennan Qin, Wenchao Xia, Chun Zhu, Yadong Wang   +4 more
wiley   +1 more source

Decision Directed Channel Estimation Aided OFDM Employing Sample-Spaced and Fractionally-Spaced CIR Estimators

, 2007
In this letter we characterize the substantial difference between two channel estimation approaches, namely the sample-spaced (SS) and the fractionally-spaced (FS) channel impulse response (CIR) estimators. The achievable performance of decision-directed
Akhtman, Jos, Hanzo, Lajos
core   +1 more source

Deep Reinforcement Learning‐Enabled QoS‐Aware Adaptive Modulation for Visible Light‐Infrared Communication Systems

IET Communications, Volume 20, Issue 1, January/December 2026.
To address the challenges of channel sensitivity and reliability in aircraft cabin environments, this paper proposes a reinforcement learning‐assisted bidirectional communication system utilizing visible light for the downlink and infrared for the uplink. By combining an improved, resource‐efficient LMMSE algorithm for channel estimation with RL‐driven
Lei Xiao, Quanyi Cheng, Baolin Lai, Xiaodong Liu, BuGao Liu, Junyi Du   +5 more
wiley   +1 more source

An Open‐Set Jamming Signal Recognition Method Based on Domain‐Specific Network

IET Communications, Volume 20, Issue 1, January/December 2026.
This study addresses the critical challenge of open‐set jamming signal recognition in complex environments by proposing a novel IQSpectro‐TransRes Joint Network with a specialised ArcCider Loss. The bi‐domain architecture and loss function collectively achieve a superior closed‐set accuracy of 98.22% while effectively identifying unknown interference ...
Ouyang Meidan
wiley   +1 more source