Results 161 to 170 of about 41,590 (218)
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OTFS Performance on Static Multipath Channels
IEEE Wireless Communications Letters, 2019Orthogonal time frequency space (OTFS) modulation is known to achieve excellent error performance in delay–Doppler channels. However, its performance over static multipath channels has never been fully investigated. In this letter, we show that, in static multipath channels, the system structure of OTFS is equivalent to the asymmetric orthogonal ...
P Raviteja, Emanuele Viterbo, Yi Hong
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A multipath model for the powerline channel
IEEE Transactions on Communications, 2002The development of powerline communication (PLC) systems for Internet, voice, and data services requires measurement-based models of the transfer characteristics of the mains network suitable for performance analysis by simulation. This paper presents an analytic model describing complex transfer functions of typical powerline networks using only a ...
Zimmermann, Manfred, Dostert, Klaus
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Advanced TOA Estimation For Multipath Channels
2020 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2020In this paper, estimation of time of arrival (TOA) in multipath environments is tackled as it is considered a real limiting factor in terrestrial and GNSS positioning systems. Novel methods are presented for designing novel near-causal filters and TOA-Matched Filters (TOA-MF) that facilitate estimation of the TOA. Near and far multipath are effectively
Rabih Chrabieh +3 more
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Multipath-cluster channel models
2012 IEEE International Conference on Ultra-Wideband, 2012In multipath channels, paths often arrive in clusters. An early model that exhibits clustering was proposed by Saleh and Valenzuela in 1987, and since then, several extensions have been developed. Although these models are straightforward to simulate, little analysis of them has been carried out.
John A. Gubner +2 more
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Ambiguity structure of multipath channels
[Proceedings] ICASSP-92: 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing, 1992Using a recently proposed definition, the authors characterize the ambiguity function of the multipath underwater acoustic channel for passive localization. They study the impact of two factors not considered by previous definitions: uncertainty about the signal spectrum and existence of multiple paths between the source and the receiver.
Maria-João D. Rendas, José M. F. Moura
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Multipath Channel Tracking in OFDM Systems
2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007High-quality channel estimation and tracking is central for coherent detection in wireless communication systems. Typical tracking algorithms assume the number of multipath components and delays to be known and constant, while their ampli- tudes may vary in time.
D. Angelosante, E. Biglieri, M. Lops
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Multipath channel modeling with chaotic attractors
Proceedings of the IEEE, 2002Previous works have introduced models based on deterministic chaos equations, aiming to simulate transmission processes over mobile radio digital channels at the level of the post detection error stochastic process and to reproduce their renewal or nonrenewal behaviors.
Eugenio Costamagna +2 more
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