Enhancing Security in Two-way Relay Network by Using Cooperation Jamming and Relay Selection Approach
نویسنده
چکیده
In wireless media, secure communication is one of the important concepts. We use Identity based cryptosystems in order to provide security in two-way relay networks. But due to the use of identity of a node as their public key, this scheme lacks the anonymity and privacy preservation. So, in order to solve this problem, propose a new approach in two-way relay networks by using cooperation jamming and relay selection approach for enhancing security. In this scheme, we propose a two-way relay network consisting of two sources, relays and an eavesdropper and there is a new relay chatting based on transmission scheme is proposed. It uses a single relay in order to forward the messages and the remaining relays transmit interference signals to confuse the eavesdropper by distributed beam forming.
منابع مشابه
Performance Study of Untrusted Relay Network Utilizing Cooperative Jammer
Abstract—In this paper, the problem of secure transmission in two-hop amplify-and-forward (AF) systems with an untrusted relay is investigated. To prevent the untrusted relay from intercepting the source message and to achieve positive secrecy rate, the destination-based cooperative jamming (DBCJ) technique is used. In this method the destination sends an intended jamming signal to the relay. T...
متن کاملRelay and jammer selection schemes for improving physical layer security in two-way cooperative networks
This paper is concerned with the relay and jammers selection in two-way cooperative networks to improve their physical layer security. Three different categories of selection schemes are proposed which are; selection schemes without jamming, selection schemes with conventional jamming and selection schemes with controlled jamming. The selection process is analyzed for two different network mode...
متن کاملStudy of Opportunistic Cooperation Techniques using Jamming and Relays for Physical-Layer Security in Buffer-aided Relay Networks
In this paper, we investigate opportunistic relay and jammer cooperation schemes in multiple-input multiple-output (MIMO) buffer-aided relay networks. The network consists of one source, an arbitrary number of relay nodes, legitimate users and eavesdroppers, with the constraints of physical layer security. We propose an algorithm to select a set of relay nodes to enhance the legitimate users’ t...
متن کاملPower Allocation Strategies in Block-Fading Two-Way Relay Networks
This paper aims at investigating the superiority of power allocation strategies, based on calculus of variations in a point-to-point two-way relay-assisted channel incorporating the amplify and forward strategy. Single and multilayer coding strategies for two cases of having and not having the channel state information (CSI) at the transmitters are studied, respectively. Using the notion of cal...
متن کاملA new interval approach for setting the distance relay zones to achieve perfect selectivity and maximum sensitivity
In this paper, an interval approach is presented to achieve perfect selectivity and maximum sensitivity in distance relay zones, considering uncertainties. For this purpose, first, the uncertainties affecting the settings of the three zones of a distance relay are discussed. Then, by using the Monte-Carlo simulation, the uncertainties are modelled and the impedances seen by the distance relay a...
متن کامل