An experiment with real-time data transmission over global scale mobile voice channel

Peric, Miroslav; Milicevic, Predrag; Banjac, Zoran; Todorović, Branislav M.

doi:10.1109/telsks.2015.7357778

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…Appendix. A.2.7) and thus has received separate attention with several prior research efforts exploring the feasibility of sending data bits over the cellular voice channel [24,25,34,35,48,52,66,67]. However, most of them are simulation studies that attempt to provide theoretical bounds for sending data over voice, propose new modulation schemes, or focus on a specific codec etc (more details in Appendix.…”

Section: Relevant Workmentioning

confidence: 99%

“…It is unreliable, lossy, insecure and highly bandwidth constrained. In the past researchers have explored the feasibility of transmitting data over cellular calls [25,52,67], but primarily through simulations and thus may not be representative of the challenges one might face when employing those schemes in real-world scenarios. To the best of our knowledge, none of the prior work attempted to practically use the cellular channel to access Internet applications and counter the inherent challenges.…”

Section: Introductionmentioning

confidence: 99%

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Dolphin: A Cellular Voice Based Internet Shutdown Resistance System

Sharma

Singh

et al. 2023

PoPETs

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Traditional censorship revolves around blocking access to some websites (or services) over the Internet. However, recently there has been a rise in the events of an extreme form of censorship viz., deliberate Internet shutdown, leading to complete Internet disconnection, severely impacting lives in such regions. Naturally, these shutdowns render all existing circumvention schemes unusable. Thus, we present Dolphin, a first of its kind system that can provide access to lightweight and delay tolerant Internet applications (email, tweets, news snippets, etc.) during Internet shutdowns. Dolphin uses the cellular voice channel to transmit data bits. A user in the shutdown region (who wishes to access these applications) requires a peer in non-shutdown region to send and retrieve content on its behalf. The data bits between the peers are sent by first encoding them into audio and then transmitting them over a cellular voice call. We overcome multiple challenges while designing and implementing Dolphin. E.g., the cellular voice channel is inherently lossy and unreliable. But the Internet applications need reliable transfers. Thus, in Dolphin we develop a TCP-style reliability layer to overcome the losses that works atop any underlying encoding and modulation scheme. Further, to evade eavesdroppers over the insecure voice channel, we provide end-to-end confidentiality. Also, Dolphin can function even without human intervention, by using cellular voice automation services. We experimentally show that Dolphin works for Internet applications, by testing it for sending email, tweets and accessing news snippets. All these applications take a few minutes to be accessed (e.g., a 500 character email was received in under 2 minutes).

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Section: Relevant Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dolphin: A Cellular Voice Based Internet Shutdown Resistance System

Sharma

Singh

et al. 2023

PoPETs

View full text Add to dashboard Cite

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“…Also Ghosh et al built a system that uses the voice channel of the mobile network to connect the central location centre with the users [17]. Peric et al designed a system that uses the GSM network voice channel to transmit a small amount of data [18].…”

Section: Similar Workmentioning

confidence: 99%

Transmission of medical messages of patient using control signal of cellular network

Aal-Nouman

Takruri-Rizk

Hope

2018

Telematics and Informatics

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the health care system need to track and monitor the patient status and information. One of the most important requirement is that the patient can access to the service anywhere and anytime. Many systems use the internet to monitor the patient status, and in some areas especially ruler areas and motorways the internet may not available or in some cases the network might be overloaded, so the patient information cannot be delivered to the hospital or medical centre. We proposed a new method that use the spare extension of the random access channel (RACH) which is carried by physical random access channel (PRACH) to send the patient information to the medical centre. We presented the mathematical model of the channel and compare the results with another system to evaluate the results. The results shows the proposed method needs less time to transmit the patient's information.

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