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When the signal-to-noise ratio is large enough, all the components of the signal are still present when the noise is deleted; otherwise, the smallest components of the signal are themselves erased in a quite rational and predictable way
The results show that although the RRC signaling overhead make keep-alive messages transmission with low efficiency, it will not consume the system resource dramatically and overload LTE network.
Open accessProceedings ArticleDOI
Daisuke Kotani, Yasuo Okabe 
18 Nov 2015
8 Citations
This would be a significant overhead when the rate of other messages than keep-alive ones is low, because the controllers are forced to handle many keep-alive messages although such keep-alive messages do not affect network control directly.
Proceedings ArticleDOI
Xin Wu, Ning Li 
01 May 2018
2 Citations
It proves that the new retain message storage mechanism can effectively prevent missing messages and repeatedly receiving messages.
However, the specification does not require that the loss of messages be possible, since this would prohibit an implementation that guaranteed no messages were lost.
Furthermore, thanks to the correlation of multiple artifacts, (s)he will be able to infer information like when a specific contact has been added, to recover deleted contacts and their time of deletion, to determine which messages have been deleted, when these messages have been exchanged, and the users that exchanged them.
Proceedings ArticleDOI
01 Oct 2012
46 Citations
The key to proving the main result is to show that after a maximal set of messages has been recovered, the remaining signal at each receiver is distributed essentially independently and identically.
Messages separating can thusly be utilized to give clients the fitness to naturally control the messages composed on their messages, by sifting through disposed of messages.
Based on the experimental results of this study proved that the capacity of embedded messages can increase twofold and keep maintaining the imperceptibility quality.
The results also show that proper inactivity timer setting will reduce the signaling overhead and improve the efficiency of keep-alive messages transmission.

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