IEEE Transactions on Mobile Computing (TMC) has moved to the OnlinePlus publication model starting with 2012 issues!

From the October 2014 issue

Accurate WiFi Based Localization for Smartphones Using Peer Assistance

By Hongbo Liu, Jie Yang, Simon Sidhom, Yan Wang, Yingying Chen, and Fan Ye

featured article thumbnailHighly accurate indoor localization of smartphones is critical to enable novel location based features for users and businesses. In this paper, we first conduct an empirical investigation of the suitability of WiFi localization for this purpose. We find that although reasonable accuracy can be achieved, significant errors (e.g., \(6\sim 8m\) ) always exist. The root cause is the existence of distinct locations with similar signatures, which is a fundamental limit of pure WiFi-based methods. Inspired by high densities of smartphones in public spaces, we propose a peer assisted localization approach to eliminate such large errors. It obtains accurate acoustic ranging estimates among peer phones, then maps their locations jointly against WiFi signature map subjecting to ranging constraints. We devise techniques for fast acoustic ranging among multiple phones and build a prototype. Experiments show that it can reduce the maximum and 80-percentile errors to as small as \(2m\) and \(1m\) , in time no longer than the original WiFi scanning, with negligible impact on battery lifetime.

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TMC is a joint publication of the:

IEEE Computer Society IEEE Circuits and Systems Society IEEE Comunications Society IEEE Signal Processing Society


TMC is published in cooperation with: IEEE Electromagnetic Compatibility Society, IEEE Engineering in Medicine and Biology Society, IEEE Technology Management Council, IEEE Information Theory Society, IEEE Instrumentation and Measurement Society, IEEE Power & Energy Society, IEEE Robotics and Automation Society, and IEEE Systems, Man, and Cybernetics Society

TMC is indexed in ISI

IEEE Transactions on Mobile Computing (TMC) is a scholarly archival journal published monthly that focuses on the key technical issues related to Mobile Computing. It is the intent of TMC to publish mature works of research, typically those that have appeared in part in conferences.
Furthermore, it is the intent ofTMC to focus on issues at the link-layer and above in wireless communications, and to focus only on topics explicitly or plausibly related to mobile systems.
Read the full scope of TMC