Optimization Schemes for Protective Jamming

Abstract

In this paper, we study strategies for allocating and managing friendly jammers, so as to create virtual barriers that would prevent hostile eavesdroppers from tapping sensitive wireless communication. Our scheme precludes the use of any encryption technique. Applications include domains such as (i) protecting the privacy of storage locations where RFID tags are used for item identification, (ii) secure reading of RFID tags embedded in credit cards, (iii) protecting data transmitted through wireless networks, sensor networks, etc. By carefully managing jammers to produce noise, we show how to reduce the SINR of eavesdroppers to below a threshold for successful reception, without jeopardizing network performance.We present algorithms targeted towards optimizing power allocation and number of jammers needed in several settings. Experimental simulations back up our results.

SNR based secure communication via untrusted amplify-and-forward relay nodes using artificial noise

“…Such SNR based analysis has appeared in [23] for protective jamming in a one-hop transmission scenario, in [24] for one-hop MIMO wiretap channel and in [25] for decodeand-forward (DF) relay network.…”

“…Amplify-and-Forward Relay [10,11] Physical layer Security [6,7] Secure transmission in AF network Secrecy Capacity Based SNR Based [23][24][25] Trusted relays beamform [13,14,22], hybrid [26][27][28][29] Untrusted relays [15-18, 30, 31] Our Work Also, as the source node itself is transmitting artificial noise, we do not need any additional node(s) for protective jamming. Artificial noise transmission by the source to improve secrecy rate has appeared in [21,39] for a single DF relay node network and one-hop network, respectively.…”

Friendly Jamming on Access Points: Analysis and Real-World Measurements

“…Jammer placement schemes are considered in [17], [32]. The setting of [17] differs from ours in that the jammers continuously emit a jam signal and thus there cannot be any coexisting networks.…”

“…The setting of [17] differs from ours in that the jammers continuously emit a jam signal and thus there cannot be any coexisting networks. However, one of the goals mentioned [32] is to not interfere with any legitimate communication. This goal is similar to our collaboration schemes, but [32] relies on a theoretical propagation model and does not report experimental results.…”

“…However, one of the goals mentioned [32] is to not interfere with any legitimate communication. This goal is similar to our collaboration schemes, but [32] relies on a theoretical propagation model and does not report experimental results. Also, our collaboration schemes address a different problem and they are based on different assumptions.…”