Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Nambirajan Seshadri"'
Publikováno v:
IEEE Transactions on Communications. 50:200-212
Real world source coding algorithms usually leave a certain amount of redundancy within the coded bit stream. Shannon (1948) already mentioned that this redundancy can be exploited at the receiver side to achieve a higher robustness against channel e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30a32208a4a9f29916461844d961f7fe
https://doi.org/10.1109/26.983317
https://doi.org/10.1109/26.983317
Publikováno v:
Wireless Communications and Mobile Computing. 1:397-406
The complexity of channel equalization using the BCJR algorithm [Bahl LR et al.IEEE Transactions on Info. Theory 1974; 20: 284–287] grows exponentially with the channel memory. The M-BCJR algorithm [Franz V, Anderson J. IEEE J. Selected Areas Comm.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::086421b644d52a80c5b7d960446bd190
https://doi.org/10.1002/wcm.23
https://doi.org/10.1002/wcm.23
Publikováno v:
IEEE Signal Processing Magazine. 17:76-92
Space-time coding (STC) is a new coding/signal processing framework for wireless communication systems with multiple transmit and multiple receive antennas. This new framework has the potential of dramatically improve the capacity and data rates. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50db74df72300be4b24adc6a72d01fd7
https://doi.org/10.1109/79.841731
https://doi.org/10.1109/79.841731
Publikováno v:
IEEE Transactions on Information Theory. 46:922-932
Wireless systems are subject to a time-varying and unknown a priori combination of cochannel interference, fading, and Gaussian noise. It is well known that multiple antennas can provide diversity in space that allows system tradeoffs between interfe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac641e5fdc269d5e8e29f84bcbaf0038
https://doi.org/10.1109/18.841171
https://doi.org/10.1109/18.841171
Publikováno v:
IEEE Journal on Selected Areas in Communications. 17:461-471
Transmitter diversity is an effective technique to improve wireless communication performance. In this paper, we investigate transmitter diversity using space-time coding for orthogonal frequency division multiplexing (OFDM) systems in high-speed wir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6729391ea0f4529e1741d85212a5d628
https://doi.org/10.1109/49.753731
https://doi.org/10.1109/49.753731
Publikováno v:
IEEE Transactions on Information Theory. 44:744-765
We consider the design of channel codes for improving the data rate and/or the reliability of communications over fading channels using multiple transmit antennas. Data is encoded by a channel code and the encoded data is split into n streams that ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e798b5c7a681573760fac38e02a97fc8
https://doi.org/10.1109/18.661517
https://doi.org/10.1109/18.661517
Publikováno v:
IEEE Journal on Selected Areas in Communications. 16:1459-1478
This paper presents the theory and practice of a new advanced modem technology suitable for high-data-rate wireless communications and presents its performance over a frequency-flat Rayleigh fading channel. The new technology is based on space-time c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04ca771b5ca137531659817b5d92ef9c
https://doi.org/10.1109/49.730454
https://doi.org/10.1109/49.730454
Autor:
C.-E. Sundberg, Nambirajan Seshadri
Publikováno v:
IEEE Transactions on Communications. 42:313-323
A list Viterbi decoding algorithm (LVA) produces a rank ordered list of the L globally best candidates after a trellis search. The authors present two such algorithms, (i) a parallel LVA that simultaneously produces the L best candidates and (ii) a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b0849ce9a1b8805438383739463d351
https://doi.org/10.1109/tcomm.1994.577040
https://doi.org/10.1109/tcomm.1994.577040
Autor:
Nambirajan Seshadri
Publikováno v:
IEEE Transactions on Communications. 42:1000-1011
A novel method of maximum likelihood sequence estimation is proposed for data that are transmitted over unknown linear channels. This procedure does not require a startup sequence for estimating the channel impulse response. Rather, the data and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8db5d98ea149bdfe0245a33a3d961db
https://doi.org/10.1109/tcomm.1994.580208
https://doi.org/10.1109/tcomm.1994.580208
Publikováno v:
2008 Information Theory and Applications Workshop.
A subspace beamforming method is presented that decomposes a MIMO channel into multiple pairs of subchannels. The pairing is done based on singular values such that similar channel capacity is obtained between different subchannel pairs. This new cap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b18d389a83c06dc07f306f144fa1c2ec
https://doi.org/10.1109/ita.2008.4601069
https://doi.org/10.1109/ita.2008.4601069