Synchronization-Free Delay Tomography Based on Compressed Sensing

Kensuke Nakanishi; Shinsuke Hara; Takahiro Matsuda; Kenichi Takizawa; Fumie Ono; Ryu Miura

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arXiv · 1402.5196

Synchronization-Free Delay Tomography Based on Compressed Sensing

Kensuke Nakanishi·Shinsuke Hara·Takahiro Matsuda·Kenichi Takizawa·Fumie Ono·Ryu Miura

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Abstract

Delay tomography has so far burdened source and receiver measurement nodes in a network with two requirements such as path establishment and clock synchronization between them. In this letter, we focus on the clock synchronization problem in delay tomography and propose a synchronization-free delay tomography scheme. The proposed scheme selects a path between source and receiver measurement nodes as a reference path, which results in a loss of equation in a conventional delay tomography problem. However, by utilizing compressed sensing, the proposed scheme becomes robust to the loss. Simulation experiments confirm that the proposed scheme works comparable to a conventional delay tomography scheme in networks with no clock synchronization between source and receiver measurement nodes.

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Kensuke Nakanishi, Shinsuke Hara, Takahiro Matsuda, Kenichi Takizawa, Fumie Ono, Ryu Miura. 2014-02-21. Synchronization-Free Delay Tomography Based on Compressed Sensing. https://arxiv.org/abs/1402.5196

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