Secure information transmission for mobile radio

Koorapaty, H.; Hassan, A.A.; Chennakeshu, S.

doi:10.1109/4234.824754

Cited by 138 publications

(73 citation statements)

References 6 publications

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“…In this setup, both the IR and the ER are very close to the Tx, and thus their average SNRs are high. It thus follows from (19) that when SNRs for the IR and the ER are high enough, x = gp tends to be zero, and as a result, if the transmission is on, i.e.,p = 0, the optimal power splitting ratios to (P1.2) becomes α * (ν) ≈ 0.5, ∀ν. Last, we observe that the O-E trade-offs achieved by Fixed-ᾱ with other fixed values ofᾱ instead ofᾱ = 0.5 deviate more notably from that of the optimal solution.…”

Section: A Secrecy Outage-energy Trade-offmentioning

confidence: 99%

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Secrecy wireless information and power transfer in fading wiretap channel

Xing

Liu

Zhang

2014

2014 IEEE International Conference on Communications (ICC)

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Abstract-Simultaneous wireless information and power transfer (SWIPT) has recently drawn significant interests for its dual use of radio signals to provide wireless data and energy access at the same time. However, a challenging secrecy communication issue arises as the messages sent to the information receivers (IRs) may be eavesdropped by the energy receivers (ERs), which are presumed to harvest energy only from the received signals. To tackle this problem, we propose in this paper an artificial noise (AN) aided transmission scheme to facilitate the secrecy information transmission to IRs and yet meet the energy harvesting requirement for ERs, under the assumption that the AN can be cancelled at IRs but not at ERs. Specifically, the proposed scheme splits the transmit power into two parts, to send the confidential message to the IR and an AN to interfere with the ER, respectively. Under a simplified threenode wiretap channel setup, the transmit power allocations and power splitting ratios over fading channels are jointly optimized to minimize the outage probability for delay-limited secrecy information transmission, or to maximize the average rate for no-delay-limited secrecy information transmission, subject to a combination of average and peak power constraints at the transmitter as well as an average energy harvesting constraint at the ER. Both the secrecy outage probability minimization and average rate maximization problems are shown to be non-convex, for each of which we propose the optimal solution based on the dual decomposition as well as suboptimal solution based on the alternating optimization. Furthermore, two benchmark schemes are introduced for comparison where the AN is not used at the transmitter and the AN is used but cannot be cancelled by the IR, respectively. Finally, the performances of proposed schemes are evaluated by simulations in terms of various trade-offs for wireless (secrecy) information versus energy transmissions.Index Terms-Simultaneous wireless information and power transfer (SWIPT), physical-layer security, energy harvesting, power control, artificial noise, fading channel, outage probability, ergodic capacity, alternating optimization.

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Section: A Secrecy Outage-energy Trade-offmentioning

confidence: 99%

“…Hence, problem (P1.2) for all ν's can be solved according to (19). With both problems (P1.1) and (P1.2) solved, we can then iteratively solve the two problems to obtain a suboptimal solution for (P1).…”

Section: Proposition 42mentioning

confidence: 99%

Secrecy wireless information and power transfer in fading wiretap channel

Xing

Liu

Zhang

2014

2014 IEEE International Conference on Communications (ICC)

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“…Many schemes were proposed, leveraging the wireless channel properties to establish common information the eavesdropper cannot obtain, such as [11], [12], [13], [14], [15], [16], [17], [18], [19].…”

Section: Related Workmentioning

confidence: 99%

A mobile world of security - The model

Neuberg

Papadimitratos

Fragouli

et al. 2011

2011 45th Annual Conference on Information Sciences and Systems

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Abstract-We propose a novel approach to establish cryptographic keys among mobile users and a networking infrastructure. Our approach comes at a low cost and can either be used as an alternative to existing solutions or can be employed in a complementary way. Our basic observation is that users are often very mobile. As they interact with the infrastructure, each of them leaves a unique trace behind, known both to the users and the infrastructure. We can leverage this shared information to create shared secret keys, with little or no change of existing mobile communication systems. We show that we can achieve (almost passively) a rate of roughly 0.1 bits per second.

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“…More recently, researchers have started to propose implementable solutions for n = 2 terminals. The first proposals assumed channel reciprocity between the two nodes and required a dynamic environment [13,7,32,8,17], or else risked compromising their security. A more recent one avoids these pitfalls but requires physical-layer changes and is specifically designed for OFDM [12].…”

Section: Introductionmentioning

confidence: 99%

Creating secrets out of erasures

Argyraki

Diggavi

Duarte

et al. 2013

Proceedings of the 19th Annual International Conference on Mobile Computing &Amp; Networking - MobiCom '13

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Current security systems often rely on the adversary's computational limitations. Wireless networks offer the opportunity for a different, complementary kind of security, which relies on the adversary's limited network presence (i.e., that the adversary cannot be located at many different points in the network at the same time). We present a system that leverages this opportunity to enable n wireless nodes to create a shared secret S, in a way that an eavesdropper, Eve, obtains very little information on S. Our system consists of two steps: (1) The nodes transmit packets following a special pattern, such that Eve learns very little about a given fraction of the transmitted packets. This is achieved through a combination of beam forming (from many different sources) and wiretap codes. (2) The nodes participate in a protocol that reshuffles the information known to each node, such that the nodes end up sharing a secret that Eve knows very little about. Our protocol is easily implementable in existing wireless devices and scales well with the number of nodes; these properties are achieved through a combination of public feedback, broadcasting, and network coding. We evaluate our system through a 5-node testbed. We demonstrate that a group of wireless nodes can generate thousands of new shared secret bits per second, with their secrecy being independent of the adversary's computational capabilities.

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Secure information transmission for mobile radio

Cited by 138 publications

References 6 publications

Secrecy wireless information and power transfer in fading wiretap channel

Secrecy wireless information and power transfer in fading wiretap channel

A mobile world of security - The model

Creating secrets out of erasures

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