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Broadcast Amplification [chapter]

Martin Hirt, Ueli Maurer, Pavel Raykov
2014 Lecture Notes in Computer Science  
In contrast, for n > 3 no broadcast amplification is possible, i.e., φn(d) = d for any d.  ...  However, if other parties than the sender can also broadcast some short messages, then broadcast amplification is possible for any n.  ...  Broadcast-Amplification Model A broadcast-amplification protocol consists of the programs π 1 , . . . , π n that the players P 1 , . . . , P n use.  ... 
doi:10.1007/978-3-642-54242-8_18 fatcat:ciugwvncfrfjpduxp2ch6qgxem

Digital TV signal reception and amplification system

A. Raizer, Mikael Fonseca
2017 SET INTERNATIONAL JOURNAL OF BROADCAST ENGINEERING  
The antenna reception and efficiency of amplification system were evaluated through measurements.  ...  This paper presents the development of an amplification system and two antennas for the reception of Digital TV signals.  ...  Digital TV signal reception and amplification system A. Raizer and M. P. Fonseca T B.  ... 
doi:10.18580/setijbe.2017.3 fatcat:uu3izojuunggfditp5p2wazocu

OFDM Link Performance With Companding for PAPR Reduction in the Presence of Non-Linear Amplification

T.G. Pratt, N. Jones, L. Smee, M. Torrey
2006 IEEE transactions on broadcasting  
System simulation models were employed using Rapp's nonlinear power amplification models, where average symbol distance errors were used as performance metrics.  ...  However, requisite expansion of the compressed signal at the receiver yields noise amplification which can counteract any of the performance gains that would otherwise accrue from the increased SNR at  ...  Such interdependencies between PAPR reduction techniques, power amplification characteristics, and noise amplification help to motivate this study, since an understanding of these provide a springboard  ... 
doi:10.1109/tbc.2006.875613 fatcat:vjg4yefd2ncabaza46sbpuc55i

Using agent-based simulation to analyse the effect of broadcast and narrowcast on public perception: A case in social risk amplification

Bhakti Stephan Onggo, Jerry Busby, Yun Liu
2014 Proceedings of the Winter Simulation Conference 2014  
Using a case study in social risk amplification, this paper demonstrates that simulation modelling, specifically agent-based simulation, can be useful in analysing the effect of broadcast and narrowcast  ...  Individuals often use information from broadcast news (e.g. media) and narrowcast news (e.g. personal social network) to form their perception on a certain social issue.  ...  between broadcast and narrowcast communications.  ... 
doi:10.1109/wsc.2014.7019899 dblp:conf/wsc/OnggoBL14 fatcat:tocn5hrwsrarhfclb2nn5uc4uq

Performance Analysis And Efficiency Of Television Broadcast Transmitting Signals In Lagos Environs: A Case Study Of Ltv 8

O.O Shoewu
2018 Zenodo  
In this paper, an attempt is made to investigate the performance of a television broadcast transmitter. This study focuses on Harris transmitter since our case study is based on Lagos Television 8.  ...  Figure 3 -Combined Amplification Transmitter 3.  ...  Transmitter amplification for Solid State and IOT. Manufacturer of television transmitter use what is commonly termed separate amplification or externally duplexed operation.  ... 
doi:10.5281/zenodo.1217080 fatcat:k7xmp5rbbbemdk63xlfaftusiq

Page 9 of Wireless Age Vol. 11, Issue 7 [page]

1924 Wireless Age  
Apart, 1924 THE WIRELESS AGE fe The Transformer of Superior Performance “Products of Proven Merit” A WORD ON ‘TRANSFORMERS The efficiency of a broadcast receiver is often destroyed by poor amplification—due  ...  It is performance which counts in successful broadcast reception.  ... 

Page 1014 of Colorado Medicine Vol. 53, Issue 11 [page]

1956 Colorado Medicine  
Discussion There are certain technicalities that make the broadcasting of heart sounds difficult. The main one is the need for such a wide range of amplification.  ...  Details on the cost, construction and application of the ideal equipment for this purpose, after further experience with different methods of amplification and broadcasting is obtained, will be published  ... 

Page 51 of Wireless Age Vol. 12, Issue 1 [page]

1924 Wireless Age  
In order that the power obtained from the house tele- phone be equaled, it is necessary to add to the broadcast microphone about 1,000 times amplification, which is equivalent to a standard detector and  ...  In a standard line amplifier, as shown in the photograph, there are five stages of resistance coupled amplification.  ... 

Capacity and Duality of AF Relay MAC and BC

Syed A. Jafar, Krishna S. Gomadam, Chiachi Huang
2007 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications  
For a two hop parallel AF relay MAC, assuming a sum power constraint across all relays we characterize optimal relay amplification factors and the resulting capacity regions.  ...  We consider multi-hop multiple access (MAC) and broadcast channels (BC) where communication takes place with the assistance of relays that amplify and forward (AF) their received signals.  ...  broadcast problem by Host-Madsen [14] .  ... 
doi:10.1109/pimrc.2007.4394547 dblp:conf/pimrc/JafarGH07 fatcat:dnkuvsy2nbb5lpdyvksbrlds2m

The effects of non-uniform loss on time reversal mirrors

Biniyam Tesfaye Taddese, Thomas M. Antonsen, Edward Ott, Steven M. Anlage
2014 AIP Advances  
An application of the technique of exponential amplification is proposed to overcome the effect of dissipation in the case of uniform loss distributions, and, to some extent, in the case of non-uniform  ...  The exponential amplification technique should improve the performance of emerging technologies based on time-reversed wave propagation such as directed communication and wireless power transfer.  ...  , and broadcasting it back into the star graph.  ... 
doi:10.1063/1.4894448 fatcat:kfwnzdlydrdjveflj4m63vzgoy

Page 46 of Wireless Age Vol. 12, Issue 11 [page]

1925 Wireless Age  
Fones waves is that maximum amplification is not uniform as shown roughly in fig- ure 1. This is a chart showing ampli- fication on a scale of wavelengths which take in the entire broadcasting range.  ...  Detector Lah - G Sa ; A Yl" 4 A 4 WHY THE HERE are so many dynes on the market today that very few if any of the broadcast listeners know the difference which exists be- tween them.  ... 

Page 71 of Wireless Age Vol. 9, Issue 8 [page]

1922 Wireless Age  
Signals may be received either without amplification, with one stage, or with two stages of amplification merely by inserting a telephone plug in the proper jaek.  ...  It gives him a vacuum tube detector and two stages of audio frequency amplification.  ... 

Page 33 of Wireless Age Vol. 9, Issue 6 [page]

1922 Wireless Age  
Signals may be received either without amplification, with one stage, or with two stages of amplification merely by inserting a telephone plug in the proper jack.  ...  It gives him a vacuum tube detector and two stages of audio frequency amplification.  ... 

Measurable Security through Isotropic Channels [chapter]

Micah Sherr, Eric Cronin, Matt Blaze
2010 Lecture Notes in Computer Science  
This position paper proposes the use of special broadcast networks to achieve provable and measurable confidentiality of messages.  ...  We call these networks isotropic channels, broadcast channels in which receivers cannot reliably determine whether a given message originated from any particular sender and senders cannot prevent a message  ...  Fortunately, privacy amplification techniques can be used to further enhance message confidentiality. A simple (but somewhat inefficient) privacy amplification scheme makes use of exclusive-or (xor).  ... 
doi:10.1007/978-3-642-17773-6_2 fatcat:7npwe4u3nnfptngojpfmrylpw4

Page 77 of Wireless Age Vol. 9, Issue 11 [page]

1922 Wireless Age  
By the word “amateur” I refer to the class of ex- perimenter as found before the days of broadcasting in distinction to the present day majority of fans—broadcast listeners.  ...  audio-frequency amplification.  ... 
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