Adaptive Jamming-Resistant Broadcast Systems with Partial Channel Sharing

Abstract

Abstract-Wireless communication is particularly vulnerable to signal jamming attacks. Spread spectrum mitigates such problem by spreading normal narrowband signals over a much wider band of frequencies and forcing jammers who do not know such spread pattern to invest much more effort to launch attacks. However, in broadcast systems, jammers can easily find out the spread pattern by compromising some receivers. Several groupbased approaches have been proposed to deal with insider jammers who can compromise receivers in broadcast systems; they can tolerate t malicious receivers as long as the system can afford 2t additional copies for each broadcast message. This paper introduces a novel jamming-resistant broadcast system that organizes receivers into multiple channel-sharing broadcast groups and isolates malicious receivers using adaptive re-grouping. By letting receivers in different groups partially share their channels, this scheme reduces the extra communication cost from 2t to (2 − ρ)t copies, where ρ is the channel sharing factor (0<ρ<1); this is much closer to optimal given the previously proven lower bound of t additional copies. In addition, a sequential test based scheme is also proposed to further improve the performance so that ρ can be set larger to save more communication cost without reducing security. The analytic and simulation results show that the proposed approaches greatly push limit of jamming-resistant broadcast towards optimal.

Compromise-resilient anti-jamming communication in wireless sensor networks

“…Both schemes, however, are centralized with the help of either cluster heads or trusted authorities. For broadcast channel with insider receivers, group-based schemes [4,7,8] have been proposed. Researchers consider a scenario in which receivers in broadcast systems could be compromised and deceived as jammers.…”

“…For broadcast communication, group-based schemes [4,7,8] have been proposed. The idea is to divide receivers into multiple broadcast groups and different groups use predefined different channels.…”

On the impact of jamming attacks on cooperative spectrum sensing in cognitive radio networks

“…Jamming, which is the main focus of this paper, has been addressed by different authors [9,15,21,24] with respect to traditional wireless networks and different anti-jamming techniques have been proposed. There is a need to investigate the performance of CRs in the presence of jammers since CR networks differ significantly from traditional wireless networks.…”

Mitigating Constant Jamming in Cognitive Radio Networks Using Hybrid FEC Code

“…The popular approach is to spread the signal over a larger bandwidth, thereby making it costly for jammers to hinder an on-going transmission. The combination of Spread Spectrum and Orthogonal Frequency Division Multiplexing [7] was also considered as an efficient means of mitigating jamming attacks in wireless networks. In CRNs based on the Spread Spectrum approach [7], the available spectrum is divided into several pieces of non-overlapping channels in which only a small portion of the channels is used for transmission at a time.…”

“…The combination of Spread Spectrum and Orthogonal Frequency Division Multiplexing [7] was also considered as an efficient means of mitigating jamming attacks in wireless networks. In CRNs based on the Spread Spectrum approach [7], the available spectrum is divided into several pieces of non-overlapping channels in which only a small portion of the channels is used for transmission at a time. The malicious jammer either jams a large number of the channels with negligible jamming effect in each channel or jams few channels, which might not be in use by the CRs.…”