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pro vyhledávání: '"Appaiah, Kumar"'
The assumption that no LoS channels exist between wireless access points~(APs) and user equipments~(UEs) becomes questionable in the context of the recent developments in the direction of cell free massive multiple input multiple output MIMO~(CF-mMIM
Externí odkaz:
http://arxiv.org/abs/2308.14307
Most of the metrics used for detecting a causal relationship among multiple time series ignore the effects of practical measurement impairments, such as finite sample effects, undersampling and measurement noise. It has been shown that these effects
Externí odkaz:
http://arxiv.org/abs/2303.17916
A new spatial IIR beamformer based direction-of-arrival (DoA) estimation method is proposed in this paper. We propose a retransmission based spatial feedback method for an array of transmit and receive antennas that improves the performance parameter
Externí odkaz:
http://arxiv.org/abs/2303.09053
Modern 5G communication systems employ multiple-input multiple-output (MIMO) in conjunction with orthogonal frequency division multiplexing (OFDM) to enhance data rates, particularly for wideband millimetre wave (mmW) applications. Since these system
Externí odkaz:
http://arxiv.org/abs/2302.11204
Unitary matrix-valued functions of frequency are matrix all-pass systems, since they preserve the norm of the input vector signals. Typically, such systems are represented and analyzed using their unitary-matrix valued frequency domain characteristic
Externí odkaz:
http://arxiv.org/abs/2210.14015
Extension of the open-source simulation package GSEIM for power electronics applications is presented. Recent developments in GSEIM, including those oriented specifically towards power electronic circuits, are described. Some examples of electrical e
Externí odkaz:
http://arxiv.org/abs/2204.12924
A new simulation package, GSEIM, for solving a set of ordinary differential equations is presented. The organisation of the program is illustrated with the help of a block diagram. Various features of GSEIM are discussed. Two ways of incorporating ne
Externí odkaz:
http://arxiv.org/abs/2104.06621
Publikováno v:
In Physical Communication February 2024 62
Time Divison Duplex (TDD) wireless communication systems are inherently bidirectional, which facilitates exploiting channel reciprocity for pilot based channel estimation of both uplink and downlink. However, there exists a gross asymmetry in channel
Externí odkaz:
http://arxiv.org/abs/2007.11209
Autor:
Sankhe, Pranav, Azim, Saqib, Goyal, Sachin, Choudhary, Tanya, Appaiah, Kumar, Srikant, Sukumar
Publikováno v:
2019 16th IEEE Workshop on Positioning, Navigation and Communications
The Global Navigation Satellite Systems (GNSS) like GPS suffer from accuracy degradation and are almost unavailable in indoor environments. Indoor positioning systems (IPS) based on WiFi signals have been gaining popularity. However, owing to the str
Externí odkaz:
http://arxiv.org/abs/2003.13991