ZEA-TDMA: design and system level implementation of a TDMA protocol for anonymous wireless networks

Debasmit Banerjee; Bo Dong; Subir Biswas

doi:10.1117/12.2018062

28 May 2013 ZEA-TDMA: design and system level implementation of a TDMA protocol for anonymous wireless networks

Debasmit Banerjee, Bo Dong, Subir Biswas

Proceedings Volume 8755, Mobile Multimedia/Image Processing, Security, and Applications 2013; 87550N (2013) https://doi.org/10.1117/12.2018062
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

Wireless sensor network used in military applications may be deployed in hostile environments, where privacy and security is of primary concern. This can lead to the formation of a trust-based sub-network among mutually-trusting nodes. However, designing a TDMA MAC protocol is very challenging in situations where such multiple sub-networks coexist, since TDMA protocols require node identity information for slot assignments. This paper introduces a novel distributed TDMA MAC protocol, ZEA-TDMA (Zero Exposure Anonymous TDMA), for anonymous wireless networks. ZEA-TDMA achieves slot allocation with strict anonymity constraints, i.e. without nodes having to exchange any identity revealing information. By using just the relative time of arrival of packets and a novel technique of wireless collision-detection and resolution for fixed packetsizes, ZEA-TDMA is able to achieve MAC slot-allocation which is described as follows. Initially, a newly joined node listens to its one-hop neighborhood channel usage and creates a slot allocation table based on its own relative time, and finally, selects a slot that is collision free within its one-hop neighborhood. The selected slot can however cause hidden collisions with a two-hop neighbor of the node. These collisions are resolved by a common neighbor of the colliding nodes, which first detects the collision, and then resolve them using an interrupt packet. ZEA-TDMA provides the following features: a) it is a TDMA protocol ideally suited for highly secure or strictly anonymous environments b) it can be used in heterogeneous environments where devices use different packet structures c) it does not require network time-synchronization, and d) it is insensitive to channel errors. We have implemented ZEA-TDMA on the MICA2 hardware platform running TinyOS and evaluated the protocol functionality and performance on a MICA2 test-bed.

Citation Download Citation

Debasmit Banerjee, Bo Dong, and Subir Biswas "ZEA-TDMA: design and system level implementation of a TDMA protocol for anonymous wireless networks", Proc. SPIE 8755, Mobile Multimedia/Image Processing, Security, and Applications 2013, 87550N (28 May 2013); https://doi.org/10.1117/12.2018062

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