Zobrazeno 1 - 10
of 1 446
pro vyhledávání: '"Vasudevan K"'
Publikováno v:
Journal of Communications Software and Systems, Vol 12, Iss 2, Pp 122-128 (2016)
A compact single feed circularly polarized microstrip patch antenna for RFID applications is proposed. Antenna geometry includes a regular hexagon shaped patch with a polygonal slot embedded at the centre. The slot accounts for circular polarization
Externí odkaz:
https://doaj.org/article/f73ed73011c4441d9b544f418c844a45
This work deals with turbo coded single user massive multiple input multiple output (SU-MMIMO) systems, with and without precoding. SU-MMIMO has a much higher spectral efficiency compared to multi-user massive MIMO (MU-MMIMO) since independent signal
Externí odkaz:
http://arxiv.org/abs/2107.02437
Precoding is a method of compensating the channel at the transmitter. This work presents a novel method of data detection in turbo coded single user massive multiple input multiple output (MIMO) systems using precoding. We show via computer simulatio
Externí odkaz:
http://arxiv.org/abs/2007.15959
Detecting the presence of a valid signal is an important task of a telecommunication receiver. When the receiver is unable to detect the presence of a valid signal, due to noise and fading, it is referred to as an erasure. This work deals with the pr
Externí odkaz:
http://arxiv.org/abs/2003.01010
Publikováno v:
IEEE Transactions on Communications , 29 October 2019
This paper analyses the performance of filter bank multicarrier (FBMC) signaling in conjunction with offset quadrature amplitude modulation (OQAM) in multi-user (MU) massive multiple-input multiple-output (MIMO) systems. Initially, closed form expres
Externí odkaz:
http://arxiv.org/abs/1901.10239
Single user massive multiple input multiple output (MIMO) can be used to increase the spectral efficiency, since the data is transmitted simultaneously from a large number of antennas located at both the base station and mobile. It is feasible to hav
Externí odkaz:
http://arxiv.org/abs/1811.11369
Autor:
Vasudevan, K.
Publikováno v:
International Journal On Advances in Telecommunications, issn 1942-2601, vol. 10, no. 1 & 2, year 2017, 22:37, http://www.iariajournals.org/telecommunications/
The minimum average signal-to-noise ratio (SNR) per bit required for error-free transmission over a fading channel is derived, and is shown to be equal to that of the additive white Gaussian noise (AWGN) channel, which is $-1.6$ dB. Discrete-time alg
Externí odkaz:
http://arxiv.org/abs/1711.10104
Autor:
Veludandi, Vineel Kumar, Vasudevan, K
Data detection of convolutional coded differential quaternary phase shift keyed (DQPSK) signals using a predictive Viterbi algorithm (VA) based receiver, is presented for single input, multiple output - orthogonal frequency division multiplexed (OFDM
Externí odkaz:
http://arxiv.org/abs/1710.02977
We consider two-way amplify and forward relaying, where multiple full-duplex user pairs exchange information via a shared full-duplex massive multiple-input multiple-output (MIMO) relay. We derive closed-form lower bound for the spectral efficiency w
Externí odkaz:
http://arxiv.org/abs/1710.01209
We consider two-way amplify and forward relaying, where multiple full-duplex user pairs exchange information via a shared full-duplex massive multiple-input multiple-output (MIMO) relay. Most of the previous massive MIMO relaying works maximize the s
Externí odkaz:
http://arxiv.org/abs/1705.09043