Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Viswanathan Ramachandran"'
Autor:
Viswanathan Ramachandran
Publikováno v:
Entropy, Vol 25, Iss 4, p 588 (2023)
Joint communications and sensing functionalities integrated into the same communication network have become increasingly relevant due to the large bandwidth requirements of next-generation wireless communication systems and the impending spectral sho
Externí odkaz:
https://doaj.org/article/21c02ae386af4437894fe67d4da3d702
Autor:
Viswanathan Ramachandran
Publikováno v:
Digital Communications and Networks, Vol 6, Iss 1, Pp 123-128 (2020)
We consider a quadratic Gaussian distributed lossy source coding setup with an additional constraint of identical reconstructions between the encoder and the decoder. The setup consists of two correlated Gaussian sources, wherein one of them has to b
Externí odkaz:
https://doaj.org/article/d724064ec9214faab44def5119c2865d
Autor:
Viswanathan Ramachandran
Publikováno v:
Digital Communications and Networks, Vol 5, Iss 3, Pp 176-182 (2019)
We consider a state reconstruction problem where the additive state process of a Gaussian Broadcast Channel (GBC) is to be reconstructed at both receivers, subject to some distortion constraints. The state process we consider is Gaussian, independent
Externí odkaz:
https://doaj.org/article/1b357cd3827244728f2d5eade157ce4d
Autor:
Viswanathan Ramachandran
Publikováno v:
ICT Express, Vol 3, Iss 3, Pp 137-141 (2017)
We consider a three receiver state dependent multilevel broadcast channel (BC), where the state information is known non-causally at the encoder as well as all the decoders. This is an extension of Nair and El Gamal’s three receiver multilevel BC (
Externí odkaz:
https://doaj.org/article/1aa2cc18192544dbb16fedcfcab25efc
Autor:
Viswanathan Ramachandran
Publikováno v:
IEEE Wireless Communications Letters, 11(2):9618646, 367-370. IEEE Communications Society
A joint message and state communication problem over a fading Gaussian channel with additive state is considered. The state process is assumed to be independent and identically distributed (i.i.d.) Gaussian, and known non-causally at the transmitter,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dc18030af8ac3d49d703c4ad3bb4884
http://www.scopus.com/inward/record.url?scp=85125363567&partnerID=8YFLogxK
http://www.scopus.com/inward/record.url?scp=85125363567&partnerID=8YFLogxK
Publikováno v:
Journal of Lightwave Technology, 41(1):9905911, 31-40. IEEE/LEOS
It is known that fiber nonlinearities induce crosstalk in a wavelength division multiplexed (WDM) system, which limits the capacity of such systems as the transmitted signal power is increased. A network user in a WDM system is an entity that operate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7878a422d236402149268a301037fb6
https://research.tue.nl/nl/publications/eddc7e88-ef0c-416c-bd76-a9b90a5f17c0
https://research.tue.nl/nl/publications/eddc7e88-ef0c-416c-bd76-a9b90a5f17c0
Publikováno v:
Pure TUe
2022 Optical Fiber Communications Conference and Exhibition (OFC)
2022 Optical Fiber Communications Conference and Exhibition (OFC)
We study an optical WDM channel from an interference channel viewpoint. An achievable rate region that strictly outperforms treating interference as noise is presented, along with a capacity region outer bound.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57608761fb74b53734ac7073f0d6f13f
https://doi.org/10.1364/ofc.2022.tu3b.4
https://doi.org/10.1364/ofc.2022.tu3b.4
Publikováno v:
Signal Processing in Photonic Communications
We investigate optical WDM transmission from the standpoint of an information-theoretic interference channel. Achievable rates that outperform treating interference as noise are presented and validated using split-step Fourier method simulations.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::584780314b1b82b594fb768c95a40b50
https://doi.org/10.1364/sppcom.2022.spm2i.6
https://doi.org/10.1364/sppcom.2022.spm2i.6
Publikováno v:
Pure TUe
arXiv, 2021:2110.09405. Cornell University Library
arXiv, 2021:2110.09405. Cornell University Library
It is known that fiber nonlinearities induce crosstalk in a wavelength division multiplexed (WDM) system, which limits the capacity of such systems as the transmitted signal power is increased. A network user in a WDM system is an entity that operate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0765bb601cbc408d3f27dd88e9611bcc
http://arxiv.org/abs/2110.09405
http://arxiv.org/abs/2110.09405
Publikováno v:
IEEE Transactions on Communications. 67:6743-6752
A hybrid communication network with a common analog signal and an independent digital data stream as input to each node in a multiple access network is considered. The receiver/base-station has to estimate the analog signal with a given fidelity, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e643a7e75c3b7842a5f733797e6afe99
https://doi.org/10.1109/tcomm.2019.2932069
https://doi.org/10.1109/tcomm.2019.2932069