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Average Capacity Maximization via Channel Switching in the Presence of Additive White Gaussian Noise Channels and Switching Delays
2016
IEEE Transactions on Wireless Communications
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The optimal channel switching problem is studied for average capacity maximization in the presence of additive white Gaussian noise channels and channel switching delays. ...
In addition, the maximum average capacity achieved by the optimal channel switching strategy is formulated as a function of the channel switching delay parameter and the average and peak power limits. ...
Average Capacity Maximization via Channel Switching in the Presence of Additive White Gaussian Noise Channels and Switching Delays Ahmet Dundar Sezer, Student Member, IEEE, and Sinan Gezici, Senior Member ...
doi:10.1109/twc.2016.2582150
fatcat:ij4xkt5qrzcypoackrmvy74sk4
Optimal channel switching in multiuser systems under average capacity constraints
2017
Digital signal processing (Print)
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In this paper, the optimal channel switching problem is studied for average capacity maximization in the presence of multiple receivers in the communication system. ...
First, the optimal channel switching problem is proposed for average capacity maximization of the communication between the transmitter and the secondary receiver while fulfilling the minimum average capacity ...
In [1] , the optimal power allocation strategy is derived for capacity maximization over a fading additive white Gaussian noise (AWGN) channel in the presence of perfect channel state information (CSI ...
doi:10.1016/j.dsp.2017.01.008
fatcat:ad4kq7bobbgmbpx7veaigdfffm
Influence of Excess 1/f Noise on Channel Capacity
2009
Complex Systems
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This paper deals with new analytical and experimental aspects of a channel's capacity in the presence of excess nonwhite Gaussian noise with long-range dependencies described by the Hurst parameter H. ...
We suggest that in many cases the real capacity of the whole channel can no longer be determined by Shannon's equation without taking into account the problem of excess 1 ë f noise, which appears as an ...
Channel Capacity in the Presence of Excess 1 ê f Noise Many statements in the literature say that information is the same as entropy. ...
doi:10.25088/complexsystems.18.2.255
fatcat:whfj7fgj4ndvjf7byv4btnjbaq
Analysis of impulsive UWB modulation on a real MV test network
2011
2011 IEEE International Symposium on Power Line Communications and Its Applications
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We study the statistics of the MV channels in terms of both root-mean-square delay spread (RMS-DS) and average channel gain (ACG). ...
We also consider the effect on achievable rate and bit-error-rate of the signalling bandwidth, and I-UWB modulation duty cycle. ...
The MV background noise can be referred to as stationary additive Gaussian colored background noise. ...
doi:10.1109/isplc.2011.5764389
fatcat:3ljedc6r7ffjzfqqwhq3md445m
Defeating the Eavesdropper: On the Achievable Secrecy Capacity using Reconfigurable Antennas
[article]
2014
arXiv
pre-print
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In this paper, we consider the transmission of confidential messages over slow fading wireless channels in the presence of an eavesdropper. ...
A reconfigurable antenna can switch its propagation characteristics over time and thus it perceives different fading channels. ...
transmitted from Alice to Bob via a rayleigh fading channel γ n M = {γ n M (1), . . . , γ n M (n)}, and Additive White Gaussian Noise (AWGN) = {n n M (1), . . . , n n M (n)}, where n n M (i) ∼ CN (0, 1 ...
arXiv:1402.0993v1
fatcat:tvvunyi5djdprfesiveff63ccy
Adaptive Switching Hybrid Blast-STBC MIMO System
2021
Journal of Engineering Research and Reports
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The proposed ASHS system shows a lot of advantages such as maximum throughput is obtained in bad channel states, no additional transmit power is needed and no additional bandwidth is needed. ...
Fading in a wireless channel has negative effects on the performance of communication systems. ...
In the ideal case, when each path is considered statistically independent and in the presence of Additive White Gaussian Noise (AWGN) n, the received signal vector r=[r 1 , r 2 , r 3 ,..., .r M ] T can ...
doi:10.9734/jerr/2021/v20i1017396
fatcat:msbmmdgb7rdxhc5lykzlsnrb7a
Spectrum Sensing Via Reconfigurable Antennas: Fundamental Limits and Potential Gains
[article]
2014
arXiv
pre-print
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Moreover, state selection can be applied to boost the capacity of SU transmission. ...
We propose a novel paradigm for spectrum sensing in cognitive radio networks that provides diversity and capacity benefits using a single antenna at the Secondary User (SU) receiver. ...
The additive white noise is n i ∼ CN (0, 1). ...
arXiv:1403.0930v1
fatcat:vtixee2zs5awjiwdxlgeo4uvom
Adaptive PSAM accounting for channel estimation and prediction errors
2005
IEEE Transactions on Wireless Communications
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While pilot symbols facilitate channel acquisition, they consume part of transmitted power and bandwidth, which in turn, reduces spectral efficiency. ...
In this paper, we first analyze the effect linear minimum mean square error (MMSE) channel estimation and prediction errors have on bit-error rate (BER). ...
The authors would like to thank the anonymous reviewers for their careful reading and critique of the manuscript. Their comments and suggestions improved the presentation of this paper. ...
doi:10.1109/twc.2004.840200
fatcat:dwtajyhwvvfs5hnek3wpjdme4m
Spectrum sensing via reconfigurable antennas: fundamental limits and potential gains
2015
Telecommunications Systems
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Moreover, state selection can be applied to boost the capacity of SU transmission. ...
Moreover, state selection can be applied to boost the capacity of SU transmission. ...
The additive white noise is n i ∼ CN (0, 1). ...
doi:10.1007/s11235-015-0096-4
fatcat:4qcijqaddbfmrpqafqchfsjf5a
Secrecy Outage Probability of Modified TAS/Alamouti-STBC Schemes under Pilot Contamination Attacks
2019
Sakarya University Journal of Science
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The exact expressions of the SOP for the M-TAS/Alamouti-STBC schemes in Rayleigh fading channels have been derived and validated via Monte Carlo simulations. ...
in the secrecy rates of wireless communications systems in the presence of PCAs. ...
Besides, terms of the average energy per symbol ( ) and the one-sided power spectral densities of the additive white Gaussian noise (AWGN) ( , and , ) at each receiver antenna of Bob and Eve, respectively ...
doi:10.16984/saufenbilder.453314
fatcat:66k4aoy4w5f4vduebng5arpyzq
Analog Space–Time Coding for Multiantenna Ultra-Wideband Transmissions
2004
IEEE Transactions on Communications
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Space-time coding (STC), on the other hand, has gained popularity as an effective means of boosting rates and performance. ...
We show that the resulting analog system is able to collect not only the spatial diversity, but also the multipath diversity inherited by the dense multipath channel, with either coherent or noncoherent ...
white Gaussian noise (AWGN) with zero mean, and variance . ...
doi:10.1109/tcomm.2004.823644
fatcat:srpvtucxb5cvldnwnpv2k45tpa
A Survey on MIMO Transmission with Discrete Input Signals: Technical Challenges, Advances, and Future Trends
[article]
2017
arXiv
pre-print
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Although the Gaussian signal is capacity-achieving, signals conforming to discrete constellations are transmitted in practical communication systems. ...
, and MIMO wiretap channel. ...
For continuous-time scalar channel with additive Gaussian/Possion noise in the presence of feedback, the relationships between the directed information and the causal estimation error are established in ...
arXiv:1704.07611v1
fatcat:4gep4gnbefdytjdggniocdora4
Breaking Spectrum Gridlock With Cognitive Radios: An Information Theoretic Perspective
2009
Proceedings of the IEEE
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We provide a comprehensive summary of the known capacity characterizations in terms of upper and lower bounds for each of these three approaches. ...
This side information typically comprises knowledge about the activity, channels, codebooks and/or messages of other nodes with which the cognitive node shares the spectrum. ...
Message W 2 T 1 T 2 R 1 R 2 Message W 1 These results have been specialized to the interference channel with additive white Gaussian noise. ...
doi:10.1109/jproc.2009.2015717
fatcat:rvnkortxtneb7loisy6ceeriwy
Joint Optimal Channel Assignment and Congestion Control for Multi-channel Wireless Mesh Networks
2006
2006 IEEE International Conference on Communications
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In this paper, we formulate the Joint Optimal Channel Assignment and Congestion Control (JOCAC) as a decentralized utility maximization problem with constraints that arise from the interference of the ...
The aggregate capacity of wireless mesh networks can be increased by the use of multiple channels. Stationary wireless routers are equipped with multiple network interface cards (NICs). ...
ACKNOWLEDGMENT This work was supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) under grant number STPGP 269872-03. ...
doi:10.1109/icc.2006.255061
dblp:conf/icc/RadW06
fatcat:5h65xqvy7jamvkzs5nwovqrcim
On the Capacity of MIMO Broadband Power Line Communications Channels
[article]
2018
arXiv
pre-print
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BB-PLC channels are characterized by a dominant colored non-Gaussian additive noise, as well as by periodic variations of the channel impulse response and the noise statistics. ...
In this work we study the fundamental rate limits for BB-PLC channels by bounding their capacity while accounting for the unique properties of these channels. ...
Note thatH G,W and C G , defined in (9) , correspond to the entropy rate of a Gaussian noise process, and to the capacity of a channel with additive Gaussian noise, respectively. ...
arXiv:1805.06911v1
fatcat:e4bfttdwtvaenllqgzscouhqbe
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