Secrecy Transmit Beamforming for Heterogeneous Networks

Lv, Tiejun; Gao, Hui; Yang, Shaoshi

doi:10.1109/jsac.2015.2416984

Cited by 143 publications

(81 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Starting from an initial value of , , we can obtain the locally optimal * , through solving the optimization problem formulated in (19), and then * , can be calculated based on (17). For the given * , , the power allocation subproblem can be resolved to obtain updated * , and the process continues until the convergence condition, that is, sec , ( * , ) − , ( * , + cir ) ≤ 1 , is met, where 1 denotes the maximum tolerance.…”

Section: Optimal Power Allocation Subproblemmentioning

confidence: 99%

“…However, as the network architecture of HetNets is more open and diverse compared to traditional cellular systems, information exchange in HetNets is more susceptible to eavesdropping; therefore, the problem of secure information transmission becomes extremely important in HetNets. References [17][18][19] study secure communication problem in HetNets. Reference [17] studies physical layer security in a multitier HetNet where BSs, legitimate users, and eavesdroppers are all randomly located.…”

Section: Introductionmentioning

confidence: 99%

“…A resource allocation algorithm which jointly considers secure information transmission, cross-tier interference, and optimal power and subcarrier allocation is proposed in order to maximize the achievable secrecy sum rate of the network. The authors in [19] investigate secure communications in a two-tier downlink HetNet comprised of one macrocell and multiple femtocells. Assuming that an eavesdropper attempts to eavesdrop on the information of MUE, the authors propose a secure transmit beamforming scheme to maximize the secrecy rate of the MUE.…”

Section: Introductionmentioning

confidence: 99%

“…While secure information transmission in HetNets has been considered in [17][18][19], user association and resource allocation issues have not been studied extensively. In particular, in the case where there exist eavesdroppers who aim at eavesdropping on user information, traditional optimal user association and resource allocation strategies such as user data rate maximization based algorithm may not be feasible, as high data rate may require large transmit power, resulting in severer information leakage at the eavesdroppers, which is highly undesired.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

An Optimal Joint User Association and Power Allocation Algorithm for Secrecy Information Transmission in Heterogeneous Networks

Chai

Chen

et al. 2017

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

In recent years, heterogeneous radio access technologies have experienced rapid development and gradually achieved effective coordination and integration, resulting in heterogeneous networks (HetNets). In this paper, we consider the downlink secure transmission of HetNets where the information transmission from base stations (BSs) to legitimate users is subject to the interception of eavesdroppers. In particular, we stress the problem of joint user association and power allocation of the BSs. To achieve data transmission in a secure and energy efficient manner, we introduce the concept of secrecy energy efficiency which is defined as the ratio of the secrecy transmission rate and power consumption of the BSs and formulate the problem of joint user association and power allocation as an optimization problem which maximizes the joint secrecy energy efficiency of all the BSs under the power constraint of the BSs and the minimum data rate constraint of user equipment (UE). By equivalently transforming the optimization problem into two subproblems, that is, power allocation subproblem and user association subproblem of the BSs, and applying iterative method and Kuhn-Munkres (K-M) algorithm to solve the two subproblems, respectively, the optimal user association and power allocation strategies can be obtained. Numerical results demonstrate that the proposed algorithm outperforms previously proposed algorithms.

show abstract

Section: Optimal Power Allocation Subproblemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Optimal Joint User Association and Power Allocation Algorithm for Secrecy Information Transmission in Heterogeneous Networks

Chai

Chen

et al. 2017

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

show abstract

“…Hence, more efforts should be invested in enhancing the PLS of wireless networks. The secrecy beamforming concept has been proposed by Lv et al [21] for improving the PLS of heterogeneous networks. Moreover, jamming schemes have been investigated in [22]- [24].…”

mentioning

confidence: 99%

Secrecy Outage and Diversity Analysis of Multiple Cooperating Source-Destination Pairs

Ding

Zou

Chen

et al. 2020

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

We study the physical-layer security of a multiple source-destination (SD) pairs coexisting wireless network in the face of an eavesdropper, where an eavesdropper intends to wiretap the signal transmitted by the SD pairs. In order to protect the wireless transmission against eavesdropping, we propose a cooperation framework relying on two stages. Specifically, an SD pair is selected to access the total allocated spectrum using an appropriately designed scheme at the beginning of the first stage. The other source nodes (SNs) simultaneously transmit their data to the SN of the above-mentioned SD pair relying on an orthogonal way during the first stage. Then, the SN of the chosen SD pair transmits the data packets containing its own messages and the other SNs' messages to its dedicated destination node (DN) in the second stage, which in turn will forward all the other DNs' data to the application center via the core network. We conceive a specific SD pair selection scheme, termed as the transmit antenna selection aided sourcedestination pair selection (TAS-SDPS). We derive the secrecy outage probability (SOP) expressions for the TAS-SDPS, as well as for the conventional round-robin source-destination pair selection (RSDPS) and non-cooperative (Non-coop) schemes for comparison purposes. Furthermore, we carry out the secrecy diversity gain analysis in the high main-to-eavesdropper ratio (MER) region, showing that the TAS-SDPS scheme is capable of achieving the maximum attainable secrecy diversity order. Additionally, increasing the number of the transmission pairs will reduce the SOP, whilst increasing the secrecy diversity order of the TAS-SDPS scheme. It is shown that the SOP of the TAS-SDPS scheme is better than that of RSDPS and Non-coop schemes. We also demonstrate that the secrecy diversity gain of proposed TAS-SDPS scheme is M times that of the RSDPS scheme in the high-MER region, where M is the number of the SD pairs.Index Terms-Physical-layer security, source-destination pair scheduling, secrecy outage probability, secrecy diversity gain.

show abstract

Physical Layer Security in 5G Hybrid Heterogeneous Networks

Umer

Hassan

2019

5G Enabled Secure Wireless Networks

View full text Add to dashboard Cite

Secrecy Transmit Beamforming for Heterogeneous Networks

Cited by 143 publications

References 52 publications

An Optimal Joint User Association and Power Allocation Algorithm for Secrecy Information Transmission in Heterogeneous Networks

An Optimal Joint User Association and Power Allocation Algorithm for Secrecy Information Transmission in Heterogeneous Networks

Secrecy Outage and Diversity Analysis of Multiple Cooperating Source-Destination Pairs

Physical Layer Security in 5G Hybrid Heterogeneous Networks

Contact Info

Product

Resources

About